Why is photosynthesis essential for plant homeostasis?
To color leaves green
To make food for the plant
To remove carbon dioxide from leaves
To make new types of cells

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

In each transformation of energy , some energy what?

Which macromolecule catalyzes chemical reactions this be considered enzyme chemical reactions thus he considering enzymes