Question 1 Ozone prevents harmful X-rays from reaching earth.
( True or false )

Question 2
Ozone layers loss is caused by chlorofluorocarbons.
( true or false)

Ecosystems involve living organisms interacting with non-living things in a productive way; how is photosynthesis an example of this? answer, i will give brainiest to first person to get it right.

What organ is the first to receive nutrients that have been absorbed from the digestive tract?

What tool do geneticists use to predict the outcome of genetic crosses? a.karyotype b.punnett square c.centrifuge