The human eye’s protective mucus membrane
is the
a. retina.
b. sclera.
c. cornea.
d. conjunctiva.
e. aqueous humor
D
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A small island has stable populations of plants and animals, including one species of hawk but no other large predators. A ship docks at the island, and the sailors huntand kill most of the hawks. What would you expect as an immediate consequence?
A. an increase in the plants B. an increase in the insects C. an increase in the rodents D. a decrease in the fish E. a decrease in the plants Additional: Clarify Question · What is the key concept addressed by the question? Gather Content · What do you already know about causes of extinction? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Lack of ___ in a diet can cause ___
a. iron---hypothryroidism b. iodine---hypothryroidism c. iodine---hyperthryroidism d. iron---hyperthyroidism e. iodine---hypertension
A proficient engineer can easily design skeletal structures that are more functional than those currently found in the forelimbs of such diverse mammals as horses, whales, and bats. The actual forelimbs of these mammals do not seem to be optimally arranged because _____.
A) natural selection has not had sufficient time to create the optimal design in each case, but will do so given enough time B) in many cases, phenotype is determined by genotype and the environment C) though we may not consider the fit between the current skeletal arrangements and their functions excellent, we should not doubt that natural selection ultimately produces the best design D) natural selection is generally limited to modifying structures that were present in previous generations and in previous species
Differential media are not useful for isolation of microbes
Indicate whether the statement is true or false