WorksheetsUNIT 1 & 2 REVIEW
Total questions: 47
Worksheet time: 4hrs 55mins
What should you wear in science lab to be safe and protected from dangerous chemicals?
Goggles
Lab apron
Closed toe shoes
ALL OF THESE
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid: water, apple juice, or milk. What variables should be kept constant/controlled?
type of plant, flower pot, soil, and amount of sunlight
water, apple juice, milk
only the amount of sunlight
type of plant only
Walker is testing which fertilizer will grow the tallest grass. The height of the grown grass is the __ variable.
dependent (measured)
independent (changes)
The following is used to measure
length
volume
mass
What is the length of the red line?
68 cm
6.8 cm
7 cm
7.2 cm
What are the 3 reactants of photosynthesis? The reactants are the things needed for photosynthesis to occur.
oxygen, glucose, sunlight
sunlight, oxygen, water
water, oxygen, carbon dioxide
carbon dioxide, sunlight, water
What are the 2 products of photosynthesis? The products are the things made in the process of photosynthesis.
water, sunlight
glucose, carbon dioxide
oxygen, glucose
sunlight, oxygen
________ are responsible for recycling matter back into the food web once an organism has died.
Carnivores
Decomposers
Omnivores
Producers
Organisms that use energy from the sun to make their own food are called
carnivores.
consumers.
omnivores.
producers.
Which of the following is NOT another word for the energy a plant takes in to make photosynthesis happen?
Sunlight
Radiant Energy
Light Energy
Thermal Energy
Plants take in radiant energy and turn it into what form of energy?
Chemical
Thermal
Potential
Kinetic
In which organelle does photosynthesis occur?
Cell Wall
Chlorophyll
Chloroplast
Cytoplasm
The energy plants gain through photosynthesis is stored in–
A. oxygen.
B. nitrogen.
C. carbon dioxide.
D. glucose.
A test tube is filled with water and a green plant called elodea. When the plant is exposed to sunlight, it begins to produce bubbles. Which of the following is the most likely conclusion for the identity of the gas in the bubbles?
A. Carbon dioxide
B. Oxygen
C. Nitrogen
D. Hydrogen
The chart lists organisms in 5 different categories living near the Texas Gulf Coast.
(Look at your chart)
Based on the chart which food chain best models a flow of energy in this ecosystem?
A. Sun - Mosquitos - Shrimp - Coyotes
B. Sun - Algae - Shrimp - Red Drum
C. Sun - Pygmy sunfish - Shrimp - Wood ducks
D. Sun - Willow Oaks - Algae - River otters
A partial grassland food web is shown.
(look at your food web)
Which of the following best describes a relationship in this grassland?
A. Badgers are top predators because they eat upland sandpipers and beetles.
B. A producer-consumer relationship exists between lupines and ants.
C. A predator-prey relationship exists between beetles and ground squirrels.
D. Upland sandpipers are primary and secondary consumers because they eat grasses and grasshoppers.
An Energy pyramid is shown.
(look at your energy pyramid picture)
Which sentence best describes how energy flows through this pyramid?
A. Energy is transferred down each level of the energy pyramid.
B. The energy lost at each level is consumed by organisms in the top level.
C. Energy is transferred from organisms in one level to those in the level above.
D. The organisms at the bottom level provide energy directly to organisms in all the other levels.
A partial marine food web is shown.
(Look at your picture)
Which organisms all consume the same producer?
A. Crabs, pilchards, blennies
B. Euphausiids, sweeps, water fleas
C. Tiger sharks, dolphins, octopuses
D. Sea urchins, crabs, octopuses
A partial mountain forest food web is shown in the picture.
(Look at the picture)
Which statement does not describe a relationship shown in the food web?
A. Elk are prey for mountain lions.
B. Mice are herbivores that consume grasses and are preyed on by snakes.
C. Owls prey on rabbits and frogs.
D. Rabbits consumer shrubs and are parasites of grasses.
All energy on Earth comes from
food.
the sun.
chemicals.
non-living things.
Because energy flows from organism to organism and is used for metabolism or is converted to heat the next organism in the chain only receives 10% of the energy from the previous level. This is known as the
Heat Regulation.
Energy Loss Directive.
Heat Transfer Rule.
Rule of 10.
The model of the energy available at each level that ALWAYS gets smaller as you go up is the
energy pyramid.
numbers pyramid.
biomass pyramid.
food web.
In the food chain pictured, what type of organism is the bird?
producer
primary consumer
secondary consumer
tertiary consumer
What is the definition of biotic?
living things in an ecosystem
nonliving things in an ecosystem
a characteristic that helps an organism survive and reproduce in its environment
squirrels
What is the definition of abiotic?
non-living things in the ecosystem
producers
the place in an ecosystem where an organism lives
population
Four students were asked to observe microhabitats of their schoolyard and describe how microhabitats are able to support different varieties of organisms. Their observations and responses are shown below.
Which student best describes how microhabitats are able to support a variety of organisms?
student 1
student 2
student 3
student 4
The more diverse an ecosystem is --
the more threatened its populations are
the more similar the species will be
the more sustainable it is
the fewer varieties of species are present
Which statement below best describes how biodiversity contributes to the sustainability of an ecosystem?
A variety of plant and animal species allows for more survivors of a natural disaster.
Having more species in an ecosystem allows the human population to increase in size.
Low biodiversity reduces the competition for resources, which helps native species survive.
Fewer species in the ecosystem reduces the likelihood that disease spreads through the ecosystem.
Which of the following situations contributes to the sustainability of an ecosystem?
Increase in biodiversity
Decrease in biodiversity
Extinction of a population from the ecosystem
Removal of many populations of organisms
The role of a pioneer species in primary succession is to change a bare habitat into one that is suitable for other organisms. A species that is responsible for primary succession in an ecosystem is most likely able to —
survive any predator
migrate during the winter
live at high altitudes
carry out photosynthesis
Which of the following sequences most likely represents ecological succession on a recently abandoned wheat field?
grasses → flowering plants → shrubs → native trees
native trees → shrubs → flowering plants → grasses
shrubs → grasses → native trees → flowering plants
flowering plants → native trees → shrubs → grasses
A hurricane hits a coastal prairie and destroys the habitat. Years later, there is an appearance of small plants with rapidly spreading roots.
This vegetation describes —
a microhabitat
primary succession
secondary succession
biodiversity
When forest fires destroyed many of the pine trees in Bastrop State Park, the burned areas began secondary succession. What is the role of succession in this example?
Creating new soil by chemical and physical weathering of rocks
Restoring the ecosystem through grass, shrub, and tree stages
Changing the landscape to be more fire resistant in the future
Opening the land for new uses like farming and raising livestock
Students observe ecological succession of a field that has been left bare. Which of the following are the students likely to observe first?
Growth of shrubs and trees
Formation of topsoil
A mature grassland community
Growth of grasses and weeds
Which of the following sequences most likely represents ecological succession on a recently abandoned wheat field?
A Grasses, flowering plants, shrubs, native trees
B Native trees, shrubs, flowering, plants, grasses
C Shrubs, grasses, native trees, flowing plants
D Flowering plants, native trees, shrubs and grasses
What is population?
Is all the members of one species that live within an area of an ecosystem.
It shows a savannah ecosystem in Africa.
Some plants and animals have adapted to the limited water supply.
Is all the living and non living things in an environment and the many ways they interact.
Which biome has very few trees, strong winds, and is dominated by grasses?
rain forest
tundra
taiga
grassland
Which two biomes have the least amount of precipitation?
Tropical rain forest and Temperate grassland
Boreal forest and Temperate woodland
Tropical savanna and Tropical dry forest
Tundra and Desert
In which biome would you find hot dry air with very little precip?
Rain Forest
Desert
Taiga
Estuary
