A full sized cow needs about 100 square feet of pasture to graze on each day. Assume an average sized classroom is about 600 square feet. How many classrooms worth of pasture would be needed to keep a cow alive for a year?

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air

Why do oceanic plates tend to subduction when colliding with a continental plate

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.