What does a cell use to eliminate a substance that is to large to move by diffusion?

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

Sean has carpal tunnel syndrome. a few months ago, he began taking megadoses of vitamin b-6, when he read that the vitamin can cure the disorder. today, sean reported to his friends that his hands were feeling numb and his walking is unsteady.

4 human activities that interfere with ecosystems, food chains and food webs.

What is the primary goal of the Small Watershed Program? O protect areas against natural disasters purify watersheds that are polluted by human use O build new structures and dams that have been damaged O give assistance to cities with runoff and

What is meant by the term optimum temperature?

If a woman has blood type o and a man has blood type ab, what is the probability that they will have a child with blood type o?

What happens directly afther prophase?

What equation is used to determine the gene frequency for a given gene in a population?

During photosynthesis, oxygen is converted to carbon dioxide. True Or False?

What characteristic of Charales would enable them to survive a dry spell? sperm with flagella phragmoplasts sporopollenin chlorophyll a