Free Printable Ecosystem Dynamics and Energy Quiz

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Ecosystem Dynamics and Energy Quiz

Total questions: 97

Worksheet time: 56mins

Name

Class

Date

During a science quiz, Jessie and Zo are trying to remember: What is the main pigment that helps plants capture sunlight for photosynthesis?

Hemoglobin

Chlorophyll

Melanin

Keratin

During science class, Silvio and Keysha are curious about which organelle acts as the cell’s powerhouse by carrying out cellular respiration in eukaryotic cells. Can you help them figure it out?

Nucleus

Mitochondrion

Ribosome

Chloroplast

Kay and Keysha are curious about how plants make their own food. Can you help them out by telling them the two main stages of photosynthesis?

Glycolysis and Krebs cycle

Light-dependent and light-independent reactions

Fermentation and electron transport

Calvin cycle and glycolysis

During a science quiz, Keysha asks Myla: "Which molecule is the superstar energy carrier produced during cellular respiration, powering all the cell’s activities?" Can you help Myla choose the right answer?

DNA

ATP

Glucose

NADPH

Darius and Jaden are using a Punnett square to predict the traits of their imaginary pets. What is the basic unit they use in the Punnett square to represent a gene variant?

Chromosome

Allele

Protein

Enzyme

Darius, Myla, and Zo are exploring a mysterious forest. They notice all sorts of living creatures and nonliving things around them. Which of the following best describes what they are experiencing as an ecosystem?

A group of the same species living together

All living and nonliving things interacting in a specific area

Only the plants in a forest

The atmosphere above a region

Jaden, Derrick, and Kay are curious about how their bodies get energy from the food they eat. What is the main purpose of cellular respiration?

To produce oxygen

To convert glucose into usable energy

To absorb sunlight

To create proteins

During a science experiment, Keysha, Silvio, and Carlos are trying to find out what plants produce during photosynthesis. Can you help them figure out which of the following is a product of photosynthesis?

Carbon dioxide

Oxygen

Lactic acid

Water

Kay and Desha are both heterozygous for a certain gene ( $Aa$ ). If they decide to see what kind of offspring they might have by crossing their genes ( $Aa \times Aa$ ), what is the probability that their child will be homozygous recessive ( $aa$ )?

25%

50%

75%

10.

Kay and Darius are racing to see who can start cellular respiration first! Which process takes place in the cytoplasm and kicks off the whole adventure?

Krebs cycle

Glycolysis

Electron transport chain

Calvin cycle

11.

Ms.DAS, Derrick, and Zo are exploring a forest and want to understand how energy moves through the ecosystem. Which of the following best describes the flow of energy in their adventure?

Energy cycles endlessly

Energy flows in one direction from the sun to producers to consumers

Energy is created by consumers

Energy is stored in rocks

12.

Tevin and Myla are curious about what happens to their classroom plant if it doesn't get any sunlight. Which process in the plant will be directly affected?

Cellular respiration

Photosynthesis

Protein synthesis

DNA replication

13.

Desha has a heterozygous tall plant ( $Tt$ ) and decides to cross it with Jarrod's homozygous short plant ( $tt$ ). What is the expected ratio of tall to short offspring from this fun plant experiment?

1:1

3:1

2:1

4:0

14.

Carlos, Rob, and Keysha are in a race to see who can produce the most ATP during cellular respiration! Which step will help them win by making the most ATP?

Glycolysis

Krebs cycle

Electron transport chain

Fermentation

15.

Imagine Jarrod, Myla, and Rob are exploring a forest. They notice some plants soaking up sunlight. What important role do these producers play in the ecosystem’s energy flow?

They consume other organisms for energy

They convert solar energy into chemical energy

They decompose dead matter

They store energy in the soil

16.

Tevin, Kay, and Myla are exploring a thriving forest ecosystem. Suddenly, something happens that could throw the whole system out of balance! Which of the following events would most likely disrupt the ecosystem equilibrium?

Stable population sizes

Introduction of an invasive species

Balanced food web

Consistent climate

17.

Zo and Jessie are curious about how traits are inherited! If a trait is controlled by a dominant allele ( $A$ ) and a recessive allele ( $a$ ), which genotype(s) would make someone show the dominant trait?

$AA$ only

$Aa$ only

$AA$ and $Aa$

$aa$ only

18.

During a class nature walk, Jaden, Kay, and Carlos start wondering: Why can’t energy be recycled in an ecosystem like water or nutrients? Which of the following best explains what happens to energy as it moves through the food chain?

Energy is destroyed during chemical reactions

Energy is lost as heat at each trophic level

Energy is stored in the soil

Energy is converted into matter

19.

Jessie and Kay are observing a population of rabbits in their local ecosystem when they notice the number of rabbits suddenly drops. Which of the following could happen next in the ecosystem as a result?

Increase in rabbit predators

Decrease in plant population

No effect on other species

Increase in rabbit population

20.

Jessie, Rob, and Zo are on a science adventure! They want to know the correct order of events in aerobic cellular respiration. Can you help them figure it out?

Glycolysis $\rightarrow$ Krebs cycle $\rightarrow$ Electron transport chain

Calvin cycle $\rightarrow$ Glycolysis $\rightarrow$ Fermentation

Electron transport chain $\rightarrow$ Glycolysis $\rightarrow$ Krebs cycle

Glycolysis $\rightarrow$ Fermentation $\rightarrow$ Krebs cycle

21.

Desha and Myla are conducting a genetics experiment with pea plants. They both have plants that are heterozygous for two traits ( $RrYy \times RrYy$ ). What is the probability that one of their pea plant offspring will be a double surprise—homozygous recessive for both traits ( $rryy$ )?

$\frac{1}{4}$

$\frac{1}{8}$

$\frac{1}{16}$

$\frac{1}{2}$

22.

Derrick is growing pea plants in his garden. He has one plant with genotype $Aa$ and another with genotype $aa$ . If Derrick crosses these two plants, what is the probability that one of the baby plants will be heterozygous?

25%

50%

100%

23.

Imagine Silvio, Jessie, and Rob are exploring an ecosystem where the population of producers suddenly drops dramatically. What do you think will happen to the primary consumers, and why?

Primary consumers will increase due to more space

Primary consumers will decrease due to less available food

No effect on primary consumers

Primary consumers will become producers

24.

Tevin and Kay are curious scientists setting up an experiment to see how different light intensities affect the rate of photosynthesis in their plants. To make sure their test is fair, which variable should they keep constant?

Amount of water

Light intensity

Number of leaves

Type of plant

25.

Imagine Tevin and Kay are exploring a wild ecosystem for their science project. If they decide to remove the top predator from this ecosystem, what could happen to the balance of nature there?

It increases biodiversity

It can cause overpopulation of prey species

It has no effect on the ecosystem

It increases the number of producers

26.

Darius and Zo are growing a magical garden with a special plant that shows incomplete dominance for flower color: red ( $RR$ ), white ( $WW$ ), and pink ( $RW$ ). If Darius and Zo each plant a pink-flowered plant and cross them, what is the expected phenotypic ratio of the colorful offspring?

1 red : 2 pink : 1 white

3 red : 1 white

1 red : 1 pink : 2 white

2 red : 1 pink : 1 white

27.

Imagine Desha, Jarrod, and Silvio are exploring a wild ecosystem for their science project. Suddenly, a mysterious disease wipes out all the herbivores! Predict what will happen to the population of producers (like plants) and explain your reasoning.

Producers will decrease due to less grazing

Producers will increase due to less consumption

Producers will remain the same

Producers will become consumers

28.

Carlos and Jessie are curious about why the oxygen levels in their favorite pond drop at night. Which process is most responsible for this nighttime change, and why?

Photosynthesis, because it uses oxygen at night

Cellular respiration, because it continues while photosynthesis stops

Fermentation, because it produces oxygen

Transpiration, because it releases oxygen

29.

Myla and Jaden are studying plants in their science class. They discover a plant with a mutation that stops it from performing the Calvin cycle. What would be the most immediate effect on this plant?

It would not be able to absorb sunlight

It would not be able to produce glucose

It would not be able to take in water

It would not be able to release oxygen

30.

Rob and Myla are studying a population of mice in their school lab. These mice have two alleles for fur color: $B$ (black, dominant) and $b$ (brown, recessive). If Rob discovers that 36% of the mice are brown, can you help him and Myla use the Hardy-Weinberg principle to estimate the frequency of the $b$ allele?

0.6

0.4

0.2

0.8

31.

Darius, Kay, and Myla are exploring a grassy field and spot several animals. Darius wonders, "Which of these organisms uses photosynthesis to get the energy it needs to survive?" Can you help them figure it out?

grass

rabbit

fox

snake

32.

Kay, niq, and Mr.Eddie are curious about how plants make their own food. Can you help them figure it out? What is photosynthesis?

The process by which animals digest their food.

The process by which plants convert carbon dioxide and water into oxygen and glucose, using sunlight.

The movement of water from the roots to the leaves in plants.

The process by which consumers obtain energy from food.

33.

Keysha, Zo, and Silvio are exploring a food web in science class. Why is photosynthesis such a superstar in keeping the food web running?

It provides energy for tertiary consumers.

It is the process by which producers make food, supporting the entire food web.

It helps decomposers break down organic material.

It increases the amount of water in an ecosystem.

34.

Tevin and Keysha are curious about how plants make their own food. Can you help them figure out the name of the process that lets producers create their own meals?

symbiosis

photosynthesis

predation

competition

35.

Keysha, Raynya, and Rob are curious about how plants make their own food. Can you help them figure out the process that plants use to produce food?

carbon dioxide

photosynthesis

chloroplast

sunlight

36.

Desha and Carlos are exploring a forest and want to know: Which of the following best describes the flow of energy in an ecosystem?

Circular

Linear

Random

Multidirectional

37.

Jaden and Keysha are curious about how plants make their own food. Can you help them figure out what the process is called that turns carbon dioxide into sugars using sunlight?

Respiration

I'm not sure

Photosynthesis

Digestion

38.

Jaden, Silvio, and Rob are exploring the wonders of nature. They notice that animals and plants are all connected in interesting ways. What do we call a system where many food chains are linked together, showing how different creatures depend on each other for food?

A single pathway of feeding relationships.

A system of interlocking and interdependent food chains.

A graphical representation of one animal's diet.

The process by which plants make their food.

39.

Kay and Carlos are curious about how plants make their own food. They wonder: Plants take the energy from the sun's rays and change it into _____ so they can grow!

light

water

chemical energy

plants

40.

Darius, Raynya, and Zo are on a quest to discover what process mainly creates the oxygen we all breathe on Earth. Can you help them solve the mystery?

Hint: Cody and Sean talked about this in class.

Alien Oxygen Factories

Photosynthesis

Magical Oxygen Rain

Worldwide Oxygen Dance Parties

41.

Mr.Eddie and Kay are curious about how plants make their own food. Which process do plants use to turn radiant energy from the sun into chemical energy they can use?

Cellular respiration

Photosynthesis

Fermentation

Digestion

42.

Tevin, Jessie, and Silvio are curious about the amazing process in plants that uses sunlight, water, and carbon dioxide to create yummy glucose and release oxygen into the air. What is this magical series of chemical reactions called?

Photosynthesis

Evaporation

Chemical Bond

Precipitation

43.

Zo, Myla, and Keysha are exploring a pond and notice that some organisms can make their own food and also use that food for energy! Which type of organism carries out both photosynthesis and cellular respiration?

all plants

all organisms

only animals

no organisms

44.

Kay and Myla are on a science adventure! They want to know: what is the main purpose of cellular respiration in our cells?

To turn energy from the sun into glucose

To turn oxygen into glucose

To turn ATP into glucose

To turn glucose into energy in the form of ATP

45.

Jessie, Carlos, and Myla are on a safari adventure, and they start debating how photosynthesis and cellular respiration are different. Can you help them settle the debate?

In what way are photosynthesis and cellular respiration different?

Cellular respiration stores energy, while photosynthesis releases energy

Cellular respiration produces oxygen, while photosynthesis uses oxygen

Photosynthesis releases energy, while cellular respiration stores energy

Photosynthesis uses carbon dioxide, while cellular respiration produces carbon dioxide

46.

ENERGY: Raynya and Derrick are curious scientists testing out how herbicides work on plants. They decide to spray a plant with atrazine, a chemical that stops the plant from using sunlight energy in its chemical reactions. After spraying, they notice that the plant immediately produces less of two important substances. Can you help Raynya and Derrick figure out which two substances decrease right after the plant is exposed to atrazine?

DNA

carbon dioxide

glucose

phospholipids

oxygen

47.

Derrick and Tevin are stuck in a science lab with no oxygen! Which process helps them release energy from food by producing ATP even when there’s no oxygen around?

glycolysis

fermentation

photosynthesis

cellular respiration

48.

Rob, Jaden, and Jessie are exploring a food chain in science class. They notice that energy seems to decrease at each trophic level. Which of the following best explains why this happens?

Producers absorb all available energy

Some energy is lost as heat during metabolic processes

Energy is created at each level

Consumers do not require energy

49.

Kay, Jaden, and Rob are exploring a mysterious forest ecosystem. Suddenly, all the decomposers vanish! What do you think would most likely happen next?

Nutrient cycling would stop and dead matter would accumulate

There would be more available energy for consumers

Producers would increase rapidly

Predators would become extinct

50.

Jessie and Darius are curious about how animals contribute to the carbon cycle. Which process is directly responsible for the release of carbon dioxide into the atmosphere by animals?

Photosynthesis

Fermentation

Cellular respiration

Transpiration

51.

Which of the following organisms is a primary consumer in a food web?

Hawk

Fox

Rabbit

Grass

52.

What happens to most of the energy as it moves from one trophic level to the next in an ecosystem?

It is recycled back to producers

It is lost as heat

It increases at each level

It is stored in rocks

53.

Define Ecosystem

A collection of plants in a garden

An ecosystem is a community of living organisms and their physical environment interacting as a system.

An ecosystem is a community of dead organisms and their physical environment interacting as a system.

An ecosystem is a community of living and dead organisms and their physical environment interacting as a system.

54.

Define Equilibrium

Equilibrium refers to a single dominant force.

Equilibrium is the process of constant change.

Equilibrium is a balanced state where opposing forces are equal.

Equilibrium is a state of chaos and disorder.

55.

Define Producers (Autotrophs)

Producers (Autotrophs) are organisms that consume other organisms for energy.

Producers (Autotrophs) are dependent on external sources for their food.

Producers (Autotrophs) are organisms that cannot photosynthesize.

Producers (Autotrophs) are organisms that create their own food from inorganic substances.

56.

Define Consumers (Heterotrophs)

Decomposers that break down dead organic matter for nutrients.

Consumers (Heterotrophs) are organisms that obtain energy by consuming other organisms.

Organisms that only consume plants for energy.

Producers that create their own energy through photosynthesis.

57.

Define Decomposers

Decomposers are organisms that break down dead organic matter.

Decomposers are microorganisms that create new organic matter.

Decomposers are animals that hunt and eat other organisms.

Decomposers are plants that produce energy through photosynthesis.

58.

Define Food Web

A food web is a collection of recipes for cooking.

A food web is a type of food that is served in restaurants.

A food web is a system of interrelated food chains in an ecosystem.

A food web is a single linear chain of organisms.

59.

Define Energy Pyramid

An energy pyramid is a graphical representation of the energy flow in an ecosystem, depicting the energy available at each trophic level.

A diagram that shows how protien flows from one trophic level to the next in an ecosystem. Energy decreases as you move up the pyramid.

A diagram that shows how food flows from one trophic level to the next in an ecosystem. Energy decreases as you move up the pyramid.

A diagram that shows how energy flows from one trophic level to the next in an ecosystem. Energy decreases as you move up the pyramid.

60.

Define Trophic Levels

Trophic levels are the different stages in a food chain that represent the flow of energy and protien through an ecosystem.

The different levels in a food chain or energy pyramid (like producers, primary consumers, secondary consumers, etc.), showing an organism's place in the flow of energy.

Trophic levels are the different stages in a food chain that represent the flow of energy and nutrients through an ecosystem.

Trophic levels refer to the physical locations of species in a habitat.

61.

Define Nutrient Cycling

Nutrient cycling is the process of the transfer and transformation of nutrients through various components of an ecosystem.

The natural process of recycling nutrients like carbon, nitrogen, and water through the environment, living things, and back again.

Nutrient cycling is the process of photosynthesis in plants.

Nutrient cycling refers to the movement of water in an ecosystem.

62.

Define Biotic Factors

The living parts of an ecosystem (plants, animals, bacteria, fungi).

Biotic factors refer to the physical environment of an ecosystem.

Biotic factors are the living components of an ecosystem.

Biotic factors are the chemical substances in an ecosystem.

63.

Define Abiotic Factors

Abiotic factors are living organisms in an ecosystem.

The non-living parts of an ecosystem (sunlight, water, temperature, soil).

Abiotic factors are the interactions between species.

Abiotic factors are non-living environmental components that affect ecosystems.

64.

Define Ecosystem Dynamics

Ecosystem dynamics is the study of the changes and interactions within ecosystems over time.

The natural changes and interactions in an ecosystem over time, including population growth, disturbances, and recovery.

Ecosystem dynamics is the study of individual species in isolation.

Ecosystem dynamics refers to the physical geography of an area.

65.

Define Equilibrium

A balanced, stable condition in an ecosystem where species populations and resources remain relatively constant.

Equilibrium refers to a state of chaos and disorder.

Equilibrium is the maximum speed of an object.

Equilibrium is a state of balance between opposing forces.

66.

Define Photosynthesis

The process by which plants and some other organisms use sunlight, carbon dioxide, and water to make glucose (food) and oxygen.

Photosynthesis is the process by which green plants convert light energy into chemical energy in the form of glucose.

Photosynthesis occurs only in the dark without any light.

Photosynthesis is the conversion of chemical energy into light energy.

67.

Define Chloroplast

The organelle in plant cells where photosynthesis happens.

Chloroplast is an organelle that stores DNA in animal cells.

Chloroplast is a structure that helps in cellular respiration.

Chloroplast is an organelle in plant cells that conducts photosynthesis.

68.

Define Glucose

Glucose is a simple sugar (monosaccharide) that serves as a primary energy source for living organisms.

A simple sugar (C₆H₁₂O₆) made by plants during photosynthesis that stores protien.

A simple sugar (C₆H₁₂O₆) made by plants during photosynthesis that stores amino acid.

A simple sugar (C₆H₁₂O₆) made by plants during photosynthesis that stores energy.

69.

Define Carbon Dioxide (CO₂)

Carbon Dioxide (CO₂) is a colorless, odorless gas essential for life on Earth.

Carbon Dioxide (CO₂) is a bright yellow gas used in welding.

A gas taken in by plants during photosynthesis and released by animals during respiration.

Carbon Dioxide (CO₂) is a solid that forms dry ice.

70.

Define Oxygen (O₂)

A gas released by plants during photosynthesis and used by most living things during cellular respiration.

Oxygen (O₂) is a compound made of hydrogen and nitrogen.

Oxygen (O₂) is a diatomic molecule essential for life, consisting of two oxygen atoms.

Oxygen (O₂) is a colorless liquid that freezes at -218.8°C.

71.

Define Cellular Respiration

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Cellular respiration is the process of photosynthesis in plants.

The process by which cells break down glucose and oxygen to release energy (ATP), carbon dioxide, and water.

Cellular respiration is the breakdown of proteins into amino acids.

72.

Define Mitochondria

The organelle in cells where cellular respiration takes place—called the “powerhouse” of the cell.

Mitochondria are organelles that produce energy for the cell.

Mitochondria are the cell's waste disposal units.

Mitochondria are responsible for protein synthesis.

73.

Define ATP (Adenosine Triphosphate)

ATP (Adenosine Triphosphate) is the primary energy carrier in cells.

ATP is a vitamin essential for metabolism.

The energy-carrying molecule produced by cellular respiration that cells use to do work.

ATP is a carbohydrate used for energy storage.

74.

Define Aerobic Respiration

Aerobic respiration is a process that only occurs in plants.

Aerobic respiration is the process of producing cellular energy in the presence of oxygen.

Respiration that requires oxygen to produce ATP.

Anaerobic respiration occurs without oxygen.

75.

Define Anaerobic Respiration

Anaerobic respiration occurs only in plants during photosynthesis.

Respiration that does not require oxygen and produces less energy.

Anaerobic respiration is the process of energy production in cells without oxygen, resulting in byproducts like lactic acid or ethanol.

Anaerobic respiration produces carbon dioxide and water as byproducts.

76.

Define Energy Flow

The one-way movement of energy through an ecosystem—from the Sun to producers, then to consumers and decomposers.

Energy flow refers to the movement of water in a food chain.

Energy flow is the transfer of energy through a food chain or ecosystem.

Energy flow is the process of photosynthesis in plants.

77.

Define Trophic Levels

Levels in a food chain or food web (producer → primary consumer → secondary consumer → etc.).

Levels in a food chain or food web (producer → secondary consumer → primary consumer → etc.).

Levels in a food chain or food web (producer → hungry consumer → thristy consumer → etc.).

Trophic levels are the different levels in a food chain, representing the flow of energy and nutrients.

78.

Define Food Chain

A sequence of organisms where each one feeds on the previous one.

A food chain is a group of people who eat together.

A food chain is a sequence of organisms each dependent on the next as a source of food.

A food chain is a method of cooking food.

79.

Define Nutrient Cycle

The movement and exchange of nutrients (like carbon, nitrogen, and water) through living organisms and the environment.

Nutrient Cycle is the process of energy transfer between different species.

Nutrient Cycle describes the formation of new nutrients in the soil.

Nutrient Cycle is the process of recycling nutrients in ecosystems through various stages involving living organisms and the environment.

80.

During a science lesson, Myla and Rob wonder what would happen if a plant's leaves were covered and couldn't get sunlight. Which process would be most affected in the plant?

Fermentation

Transpiration

Cellular respiration

Photosynthesis

81.

Kayla, Zo, and Jessie are learning about energy in ecosystems. Which group of organisms is responsible for converting sunlight into energy that other organisms can use?

Decomposers

Predators

Producers

Primary consumers

82.

Jaden and Desha are curious about the gas that plants take in during photosynthesis. Which gas do plants absorb from the air to help make their own food?

Oxygen

Carbon dioxide

Hydrogen

Nitrogen

83.

Kay and Zo are investigating what happens if a plant is kept in the dark for several days. Which of the following would you expect to decrease as a direct result?

Protein synthesis

Water absorption

Cell division

Oxygen production

84.

Desha and Carlos are crossing two pea plants, both heterozygous for flower color ( $Pp$ ). What is the probability that an offspring will have white flowers (homozygous recessive)?

50%

75%

25%

85.

Jaden and Myla are learning about energy in cells. Which molecule is produced during cellular respiration and used as the main energy currency in cells?

Glucose

ATP

Chlorophyll

Oxygen

86.

Kay and Zo are investigating what happens when a plant's stomata stay closed for a long time. Which process would be most directly affected by this change?

Protein synthesis

Photosynthesis

Cell division

Transpiration

87.

Jessie and Carlos are learning about energy in ecosystems. Which group of organisms is primarily responsible for converting solar energy into chemical energy?

Secondary consumers

Decomposers

Producers

Primary consumers

88.

Desha and Derrick are using Punnett squares to predict traits. If both parents are homozygous dominant for a trait ( $AA \times AA$ ), what is the probability that their offspring will show the dominant trait?

100%

25%

50%

89.

Kay and Silvio are investigating what happens if a plant is kept in the dark for several days. Which process will be directly affected by the lack of light?

Fermentation

Photosynthesis

Cellular respiration

Transpiration

90.

During a genetics experiment, Myla and Rob cross two pea plants that are both heterozygous for seed color (Yy). What is the expected ratio of yellow to green seeds in their offspring?

1 yellow : 1 green

4 yellow : 0 green

2 yellow : 2 green

3 yellow : 1 green

91.

Jessie and Carlos are learning about energy flow in ecosystems. Which group of organisms is responsible for breaking down dead plants and animals, returning nutrients to the soil?

Predators

Producers

Consumers

Decomposers

92.

During a science experiment, Zo and Desha observe that plants release a gas as a byproduct of photosynthesis. Which gas do plants release during this process?

Hydrogen

Nitrogen

Carbon dioxide

Oxygen

93.

Kay and Myla are learning about energy in ecosystems. Which group of organisms is responsible for breaking down dead plants and animals, returning nutrients to the soil?

Decomposers

Herbivores

Predators

Producers

94.

Jaden and Rob are discussing how traits are inherited. If a plant has two identical alleles for a trait, what is this genetic condition called?

Dominant

Recessive

Homozygous

Heterozygous

95.

Kay and Silvio are learning about how energy moves through an ecosystem. Which group of organisms is responsible for capturing energy from the sun and making it available to the rest of the food web?

Decomposers

Primary consumers

Producers

Secondary consumers

96.

Jessie and Myla are discussing what happens to most of the energy as it moves from one trophic level to the next in a food chain. What happens to this energy?

It is stored as fat in organisms

It is lost as heat

It is recycled back to the sun

It is turned into water

97.

Rob and Carlos are curious about the process that allows plants to take in carbon dioxide and release oxygen. Which organelle in plant cells is mainly responsible for this process?

Ribosome

Mitochondria

Nucleus

Chloroplast

100 %

Ecosystem Dynamics and Energy Quiz

Total questions: 97

Worksheet time: 56mins

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