The most abundant polymer in the world is:

a. cellulose.
b. glucose.
c. hemicellulose.
d. lignin.
e. pectin.


A

Biology & Microbiology

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In an open circulatory system, the circulatory fluid is called:

a. blood b. plasma c. interstitial fluid d. lymph e. hemolymph

Biology & Microbiology

A toxic material that has the potential to accumulate in the fat tissue of animals is accidentally released into an ecosystem. Plants and animals in this system include red-tailed hawks, mice, corn, and weasels. Arrange the organisms in order according to the level of toxins that they would be expected to accumulate

What will be an ideal response?

Biology & Microbiology

Two families of feral cats move into the same barn. One family preys on the mice; the other preys on the pigeons. This behavior is an example of

A) resource partitioning. B) interspecific competition. C) ecosystem profile. D) parasitism. E) mutualism.

Biology & Microbiology

Which of the following is a good example of two phenomena that are correlated but show no causal relationship?

A) Whenever the price of oil goes up, the price of airplane tickets goes up. B) Whenever I do poorly on a biology exam, I eat a quart of ice cream. C) I did poorly on my last biology exam, so I ate a quart of ice cream. D) Between 1937 and 1979, every year that a Democrat was elected President of the USA, a National League team won the World Series, whereas every year a Republican was elected President of the USA, an American League team won the World Series. E) When I walk to the bus, the trees I pass are a maple, an oak, an elm, a hickory, and another maple, in that order

Biology & Microbiology