In general, when sexual selection is strong for one sex and weak for the other, we can predict that members of the sex subject to strong sexual selection will be ________, and members of the sex subject to weak sexual selection will be ________

A) choosy; competitive
B) aggressive; passive
C) competitive; showy
D) competitive; choosy


D

Biology & Microbiology

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Mitochondria and hydrogenosomes are similar in that they both

A) are the site of energy production in eukaryotic cells. B) evolved via endosymbiosis of bacterial cells. C) are the site of aerobic respiration. D) evolved via endosymbiosis and are sites for aerobic respiration and energy production.

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The enzyme-linked virus-inducible system (ELVIS) uses a cloned -galactosidase gene that is expressed only when cells are infected with what virus?

a. RSV b. Human immunodeficiency virus (HIV) c. HSV d. Cytomegalovirus (CMA)

Biology & Microbiology

If you eliminated all sources of calcium (dairy products, some vegetables) from your diet, the level of which of the following would rise in an attempt to supply calcium stored in your body to the tissues that need it?

a. aldosterone b. calcitonin c. mineralocorticoids d. parathyroid hormone e. thyroid hormone

Biology & Microbiology

On a geological timescale, changes in climate do not influence overall regional patterns of species diversity

Indicate whether the statement is true or false

Biology & Microbiology