Organisms such as earthworms and crabs, which dine on small particles of organic matter, are called ____
a. herbivores
b. carnivores
c. omnivores
d. decomposers
e. detritivores
ANSWER: e
You might also like to view...
Edward Jenner was able to protect people from contracting smallpox by injecting them with material from cowpox pustules because
a. both smallpox and cowpox are caused by the same virus, which causes a less severe disease in cows. b. antibodies against cowpox virus antigens can bind to similar proteins on the coat of smallpox virus. c. the injected fluid activated the nonspecific immune response, guarding against any subsequent infection. d. the material from the pustule contained antibodies that the cow had produced to the viral coat proteins. e. the material from the pustules contained weakened smallpox virus.
The atomic number for carbon is 6. The isotope 14C has ____ neutrons.
A. 6 B. 8 C. 14 D. 20
When AIDS patients die, it is because
A) there are no treatments to slow the progress of the disease. B) HIV destroys the internal organs. C) their immune systems cannot defend them from other infections. D) the AIDS virus has a high rate of mutation. E) they lack HIV antibodies.
Take a group of closely related species that vary in the average number of males a sin-gle female will mate with
What pattern would you expect, given the results of studies from the literature, if you measured sperm competition in each of the species? a. Sperm competition will show a positive relationship to the number of males per female. b. Sperm competition will show a negative relationship to the number of males per female. c. Sperm competition will show no relationship to the number of males per female. d. Cannot make a prediction with the information given.