Answer fast! the cytoplasm of an animal cells has a concentration of potassium as much as 20 times higher than the concentration outside the cell. how do the cells move potassium ions against a concentration gradient, from a lower concentration to a higher concentration? a. facilitated diffusion b. active transport c. osmosis d. diffusion

If the frequency of the p allele is .63 in the population then what is the frequency of the q allele?

What is one way intensive agriculture can contribute to climate change? a. tree loss to agriculture increases earth's albedo b. livestock manure absorbs greenhouse gases c. large herds of livestock release greenhouse gases d. fewer trees are available to replenish petroleum stores appex

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.