click below
click below
Normal Size Small Size show me how
7th-grade-science
Life Science
Question | Answer |
---|---|
What substance makes up most of your body mass? | carbon |
What is found in both plant and animal cells? | ribosomes |
What is he genetic material in living organisms? | DNA |
Why do cells divide? | to increase their numbers through a process of mitosis |
What do fossils do? | They provide evidence on the past life |
What is white light a mixture of? | of many wavelengths |
When does extinction of species occur? | when the environment changes |