Specialized islet cells that secrete hormones are found scattered throughout the

a. adrenal cortex.
b. liver.
c. thymus.
d. adrenal medulla.
e. pancreas.


E

Biology & Microbiology

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If a scientist found very high concentrations of organic biomarkers deep inside a 3.9 billion year old meteorite, how would this effect the explanation of the origins of life on Earth?  

A.  This would prove the extra-terrestrial origin of life. B.  This would provide evidence for the extra-terrestrial origin of life. C.  This would disprove the terrestrial origin of life. D.  This would provide evidence for the uniqueness of life on earth. 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 the role of meteorites in the origin of life?   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

The brain almost exclusively uses blood glucose as its main energy source. This glucose comes from:

What will be an ideal response?

Biology & Microbiology

The measure of the concentration of solutes in a solution is ____

a. tonicity b. osmosis c. hydrostatic pressure d. diffusion e. facilitated diffusion

Biology & Microbiology

Infectious disease and parasites that affect population size are ____

a. carrying capacities b. replacement factors c. density-dependent controls d. density-limiting controls e. density-independent controls

Biology & Microbiology