A cell engulfing dissolved particles in extracellular fluid would be an example of which of the following?
a. phagocytosis
b. pinocytosis
c. receptor-mediated endocytosis
d. exocytosis
b. pinocytosis
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The study of dentition tells the researcher what about an animal?
a. its diet only b. its lifestyle only c. its intelligence only d. its diet and lifestyle e. its diet, lifestyle, and intelligence
TRAIT SPECIESABCDE111011210010310011411111511111600010 The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, and a "1" indicates the derived condition. Which species would you designate as the outgroup?
A. 1 B. 2 C. 3 D. 4 E. 5 F. 6
An insect population that becomes resistant to a commonly used insecticide is an example of
A. a founder effect. B. genetic drift. C. inheritance of acquired characteristics. D. disruptive selection. E. natural selection.
Which of the following is a widely supported explanation for the tendency of tropical communities to have greater species diversity than temperate or polar communities?
A) They are less likely to be affected by human disturbance. B) There are fewer parasites to negatively affect the health of tropical communities. C) Tropical communities are low in altitude, whereas temperate and polar communities are high in altitude. D) Tropical communities are generally older than temperate and polar communities. E) More competitive dominant species have evolved in temperate and polar communities.