True or False: Individuals in a group often exchange favors. This reciprocal interaction provides one explanation for the evolution of altruism

A. true
B. false


A

Biology & Microbiology

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The 2007 review on climate change concluded that the warming in recent decades is attributed to ________

a. human induced increases in greenhouse gases b. increased geothermal activity c. increased water vapor in the atmosphere d. volcanic eruptions e. solar output

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Which of these hormones stimulates the production of milk?

A) Oxytocin B) Prolactin C) Estrogen D) Progesterone E) Colostrum

Biology & Microbiology

Upon which of the following is passive immunity dependent?

A) a person's own immune system producing antibodies B) antibodies made by another organism C) antibody-producing cells from another organism D) antigens from a person's own body

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Any gene, when mutated, that leads to an organism with structures in abnormal or unusual places, is referred to as a(n) ________________ gene.

A. Heterotic B. Vestigial C. Homeotic D. Mutagenic E. Embryotic

Biology & Microbiology