Quiz about Life Science

Question 1

How do plants get energy?

Accepted Answer

through a process called photosynthesis

Answer

by eating other organisms

Answer

by absorbing mineral nutrients from the soil

Answer

through a reaction called chlorophyll

Question 2

How do plants and animals differ?

Accepted Answer

Unlike animals, plants are able to make their own food.

Answer

Unlike animals, plants do not need gases from the air.

Answer

Unlike plants, animals do not need gases from the air.

Answer

Unlike plants, animals are able to make their own food.

Question 3

Identify the pigment that captures the energy of sunlight.

Accepted Answer

chlorophyll

Answer

carbon dioxide

Answer

oxygen

Answer

sugar

Question 4

What is the original source of energy for organisms in a food chain?

Accepted Answer

sunlight

Answer

plants

Answer

animals

Answer

consumers

Question 5

Which plant part is mainly responsible for capturing sunlight and carrying out photosynthesis?

Accepted Answer

B - the leaves

Answer

A - the stem

Answer

C - the roots

Answer

D - the flower

Question 6

What is the product of photosynthesis that plants use?

Accepted Answer

sugar

Answer

water

Answer

carbon dioxide

Answer

chlorophyll

Question 7

Plants use the products made during photosynthesis to carry out their basic functions. Where does the energy to make these products come from?

Accepted Answer

sunlight

Answer

water

Answer

oxygen

Answer

carbon dioxide

Question 8

Over time a young robin becomes an adult. Which process describes how the robin gets larger?

Accepted Answer

Food provides the robin with materials for growth.

Answer

Food provides the robin with materials for repair.

Answer

Food provides energy the robin needs for motion.

Answer

Food provides energy for the robin to keep its body warm.

Question 9

Rahul falls down and scrapes his knee. In a week, his skin is healed. Which of the following BEST describes this use of food?

Accepted Answer

Food provides Rahul's body with materials for repair.

Answer

Food provides Rahul's body with materials for growth.

Answer

Food provides energy that Rahul needs for motion.

Answer

Food provides energy that Rahul's body uses to stay warm.

Question 10

What are three main things that plants need to grow?

Accepted Answer

Sunlight, air, water

Answer

Sunlight, water, soil

Answer

Sunlight, air, soil

Answer

Sunlight, soil, nutrients

Question 11

Grace is growing lettuce in a wter solution that includes dissolved nutrients. What is the name of this method of growing plants?

Accepted Answer

Hydroponics

Answer

Producer

Answer

Photosynthesis

Answer

Runoff

Question 12

What is the BEST definition of a food chain?

Accepted Answer

a path by which energy flows from one living thing to another.

Answer

a model of consumers providing energy to producers

Answer

a method for growing plants without soil

Answer

a process by which plants make food from the energy in sunlight

Question 13

Jaden states that animals do not depend on energy from the sun for food. How would you respond to this statement?

Accepted Answer

I would disagree with Jaden because animals either eat plants or other animals that eat plants.

Answer

I would agree with Jaden because animals do not make their own food through photosynthesis

Answer

I would agree with Jaden because animals eat other organisms to get energy.

Answer

I would disagree with Jaden because animals sun themselves to help keep their bodies warm.

Question 14

What does a food web show?

Accepted Answer

the different paths that energy follows as it moves through an environment.

Answer

descriptions of how different animals of the same type are related in an environment.

Answer

pictures of the different populations of plants and animals in the environment.

Answer

the number of plants and animals present in an environment.

Question 15

What role do fungi and bacteria play in the energy flow of ecosystems?

Accepted Answer

decomposers

Answer

producers

Answer

consumers

Answer

nutrients

Question 16

What do decomposers do?

Accepted Answer

break down dead organisms or the wastes of living things

Answer

produce food through photosynthesis

Answer

hunt other animals for food

Answer

change food energy into heat in an animal's body

Question 17

What is an ecosystem?

Accepted Answer

all the living and nonliving things that interact in an area

Answer

all of the physical characteristics of an area

Answer

all the living things that interact in an area

Answer

all of the nonliving things that interact in an area

Question 18

Which of these are physical characteristics of an environment?

Accepted Answer

temperature, rainfall, and kind of soil

Answer

interacting plants and animals

Answer

interconnected food chains

Answer

overlapping food webs

Question 19

What does this picture of prairie dogs represent?

Accepted Answer

a population

Answer

an individual

Answer

a community

Answer

an ecosystem

Question 20

Which of the following BEST describes an invasive species?

Accepted Answer

an organism that does not belong in a certain place and harms the environment

Answer

an organism that belongs in a certain place and grows to the point that it harms the environment

Answer

an organism naturally found in a certain place that harms the environment

Answer

a species that helps native species meet their needs

Question 21

Which of the following are invasive species found in the United States?

Accepted Answer

kudzu and red imported fire ants

Answer

prairie grass and buffalo

Answer

grasshoppers and pine trees

Answer

red imported fire ants and

Question 22

How do animals get the nitrogen they need?

Accepted Answer

They eat plants or other animals that eat plants

Answer

They breathe it in with oxygen in air

Answer

They absorb nitrogen through their skin

Answer

They get nitrogen from the water they drink

Question 23

Which sequence BEST describes the nitrogen cycle?

Accepted Answer

Plants take in nitrogen from the soil. Animals get the nitrogen by eating plants. When organisms die, decomposers return nitrogen to the soil

Answer

Both plants and animals take in nitrogen from the air. They return nitrogen to the air when they die.

Answer

Plants take in nitrogen from the soil. Animals take in nitrogen from the air. When plants and animals die, decomposers release the nitrogen to the soil and air.

Answer

Plants take in oxygen and produce nitrogen as a by-product of photosynthesis. Animals use nitrogen and give off oxygen as a waste product.

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