Which of the following is/are associated with "predatory aggression"?

a. stimulation of the ventral tegmental area
b. high levels of sympathetic activity
c. increased vocalizations or threatening postures
d. stimulation of the medial hypothalamus
e. a and b


Answer: a. stimulation of the ventral tegmental area

Biology & Microbiology

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Why was protein originally thought to be the genetic information storage molecule instead of DNA?

A. There are more building blocks for protein than there are for DNA. B. Proteins have a wider variety of three- dimensional shapes than DNA. C. Proteins carry out a great range of cellular functions. D. there are more building blocks for protein than there are for DNA, proteins have a wider variety of three-dimensional shapes than DNA, and proteins carry out a great range of cellular functions

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What are the components of the Janzen-Connell hypothesis? Select all correct choices

A. Seeds located close to plants of the parent generation will have a higher survival rate. B. Seeds located far away from the parent generation will have a higher survival rate. C. Seeds from rare plants will have a higher survival rate. D. Seeds from common plants will have a higher survival rate.

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When rapid speciation produces a cluster of closely related species that occupy different habitats or consume different

foods, the process is referred to as ____.

a. punctuated equilibrium b. disjunct dispersal c. disjunct vicariance d. adaptive radiation e. continuous vicariance

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What is the monomer of the DNA molecule?

A) Polynucleotide B) Monosaccharide C) Nucleotide D) Peptide

Biology & Microbiology