Identify and briefly describe two ecosystems in your community that are beyond your schoolyard. for each of these ecosystems, list three biotic and three abiotic elements

What are 3 reasons that natural selection occurs

What are polysaccharides more difficult to digest than monosaccharides

Angiosperms are the most successful terrestrial plants. which of the following features is unique to them and account for their success? a. fruits enclosing seeds b. wind pollination c. sperm cells without flagella d. embryos enclosed within seed coats e. dominant gametophytes