Which hormones stimulate the kidneys to retain sodium and excrete potassium?

What will be an ideal response?


mineralocorticoids

Biology & Microbiology

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Which of the following human activities could contribute to the eutrophication of a lake? Check all that apply.  

_____  dumping piles of leaves near a lake _____  planting trees around the periphery of the lake _____  washing clothes with soap in the lake _____  feeding the ducks in the lake _____  dumping plastic trash into the lake _____  fertilizing lawns near the lake Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about eutrophication? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

Which of the following signals indicates shade to a plant?

A) light quantity B) blue light C) far-red light D) red light

Biology & Microbiology

Many male songbirds are brightly colored.  However, the color of the birds is determined by a balance of  

A.  natural selection against bright colors by predation and sexual selection in favor of bright colors. B.  gene flow that reduces bright colors and natural selection in favor of bright colors. C.  mutations that reduce bright colors and sexual selection in favor of bright colors. D.  mutations that reduce bright colors and gene flow in favor of bright colors. E.  natural selection against bright colors by predation and mutations that introduce bright colors.

Biology & Microbiology

Type of bonding in which an atom loses or gains electrons:

A) Ionic B) Covalent C) London D) Hydrogen

Biology & Microbiology