ITBS ITBS Science Concepts and Life Science 1

Question 1

Which process do plants use to make their own food using sunlight?

Accepted Answer

Photosynthesis

Answer

Plants use photosynthesis to convert sunlight, water, and carbon dioxide into glucose for food.

Question 2

What is the basic unit of life?

Accepted Answer

Cell

Answer

The cell is the basic structural and functional unit of all living organisms.

Question 3

Which of the following is a mammal?

Accepted Answer

Dolphin

Answer

Dolphins are mammals because they breathe air, are warm-blooded, and nurse their young with milk.

Question 4

What do plants need to carry out photosynthesis? (Select the best answer)

Accepted Answer

Sunlight, water, and carbon dioxide

Answer

Plants need sunlight, water, and carbon dioxide as the three key ingredients for photosynthesis.

Question 5

Which part of the plant absorbs water and nutrients from the soil?

Accepted Answer

Roots

Answer

Roots anchor the plant and absorb water and nutrients from the surrounding soil.

ITBS - Iowa Test of Basic Skills Exam Practice Test