Seeds are essential for what and what of many plant species?

Describe the process of genetic evolution through gene pools, genetic drift and mutations.

Which term is the name of the diploid stage of the plant life cycle? gametophyte sporophyte sperm egg

What cell structure protects and gives shape to a plant cell

Copper is part of a complex that regulates metabolism of this mineral. 1. Calcium 2. Iron 3. Selenium

If 97% of the earth water is in the oceans why are there water scarcity problems

Which is an example of commensalism in the tropical rainforest? a. parasites feed on the sloth's body. b. sloths are food for other animals. c. algae live in a sloth's fur, providing it with camouflage. d. insects lay eggs in the sloth's waste.

Why do you think the caterpillar is colored green?

A punnet square predicts a 9:3:3:1 ratio for phenotypes. Explain what that ratio means ...

What is the meaning of virus?

A 6-year-old boy has marked edema of the legs, accumulation of fluid in the abdomen, and a low blood serum albumin and total serum protein. his urine contains large amounts of protein. what is the most likely cause of edema?