Which of the following shows seasonal isolation?
A. Frogs mate in the spring and deer mate in the fall.
B. The pollen of different species of pine trees mature at different times.
C. The tulips bloom earlier in Tennessee than in New York.
D. None of these answers is correct.
B. The pollen of different species of pine trees mature at different times.
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Vitamin D can be synthesized by the body from a derivative of cholesterol. Given this information, predict vitamin D's solubility.
A. Vitamin D is water-soluble. B. Vitamin D is fat-soluble. C. Vitamin D is soluble in both water and fat. D. Vitamin D is not soluble in either water or fat. Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you know about the solubility of cholesterol? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? 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?
The cell produced by the fusion of an egg and a sperm is the
A. gamete. B. oocyte. C. zygote. D. germ line cell. E. somatic cell.
Gene therapy is an available treatment for numerous genetic disorders
Indicate whether the statement is true or false.
The immediate energy system fuels muscle cells
a. with ATP only. b. with ATP and creatine phosphate. c. by glycolysis alone. d. by the Krebs cycle alone. e. by the electron transport system alone.