Life Science 7th grade PRETEST

Front

Sugars and starches, which are made of carbon (C), oxygen (O), and hydrogen (H) are called ____________

Back

carbohydrates

Front

The tiny hairlike structures in the nose where dust and bacteria are trapped are called __________

Back

cillia

Front

An organism that eats grass and insects is __________

Back

an omnivore

Front

Which organelle is known as the powerhouse of the cell?

Back

mitochondria

Front

The two upper chambers of the heart are called the right ______ and the left ______.

Back

atrium

Front

What is the basic unit of life?

Back

cell

Front

What process do plants use to convert sunlight into energy?

Back

photosynthesis

Front

What is the function of the ribosome in a cell?

Back

protein synthesis

Front

What type of organism produces its own food through photosynthesis?

Back

producer

Front

What is the main function of the circulatory system?

Back

to transport nutrients and oxygen to cells