What supports more life relative to their area - freshwater ecosystems or marine ecosystems? why?

From where would a mulberry tree get its energy

What is a single cell organism called

Name each layer of earth starting from the center include both layers of the core and all layers of the mantle

Between an area of high concentration and one with low concentration there is a?

How do living things respond to their environment? Provide 2 examples.

What do cells need to do between divisions to make sure that a full set of dna gets passed on to each daughter cell?

True or false: The central nervous system allows us to sense the environment

Which of the following statements is false regarding root hairs? a. they are outgrowths of endodermal cells c. they increase the surface area of the root b. they are outgrowths of epidermal cells d. they absorb water and nutrients

Why is it critical to divide the chromosome number in half?

The amino acid proline is one of the three amino acids that watson describes as having "special properties". what is special about proline?