How does the environment limit population growth?
What will be an ideal response?
Competition, predation, limits on nutrients and space, disease, and weather are all factors in environmental resistance, which limits the growth of populations.
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Male hummingbirds flash a patch of iridescent feathers on their neck called the gorget. This behavior makes them very visible. Why advertise their presence to a predator?
A. Hummingbirds are so fast that predation is not a large factor for them. B. Predators cannot see colors so are not alerted. C. The benefits of defending a territory exceed the costs of predation. D. This is an example of a maladaptive behavior that decreases overall fitness. Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about the tradeoff of being visible to potential mates and predators? What other information is related to the question? Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection: 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?
Which of the following layers of the digestive tract is the only one that has direct contact with food
before it is digested? a. serosa b. longitudinal muscle c. mucosa d. submucosa e. circular muscle
Which structure forms the roof of the midbrain where visual and auditory signals are integrated?
a. ventricles b. meninges c. tectum d. olfactory and optic bulbs e. pineal gland
Alternate forms of the same gene
A. do not exist. B. are alleles. C. are homologs. D. are sister chromatids. E. do not occur in the same individual.