What would happen if everyone on the planet used resources and lived the average lifestyle of an American?
A) The Earth would have the carrying capacity to sustain the human population.
B) The population growth rate would immediately decrease.
C) We would need multiple Earths for this to be possible.
D) There would be same number of people in less-developed countries as there are Americans.
C
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Effector
Match the letter of each example from childbirth to the appropriate component of a positive feedback loop. A. pituitary gland secretes oxytocin, which acts on the uterus B. uterine contractions increase C. fetus is pushed against uterine opening D. receptors detect stretch E. brain receives and compares stretch information 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 positive feedback? What other information is related to the question? Choose Answer Given what you now know, what information 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?
The tube feet of a sea star
a. bear tiny toes. b. are located only at the tips of the arms. c. function in movement. d. protect the organism from predatory fish.
Any monohybrid cross consisting of one dominant and one recessive allele for the trait studied should result in a ratio of ______________ dominant to __________________ recessive.
a) three; one b) one; one c) one; two d) two; one e) one; three
Which of the following is true about cladistics?
A. Dinosaurs, birds, and crocodiles would be placed in a single common taxon. B. The classification is very similar to the other taxonomic methods of systematics. C. Classification is based on the common characteristics of organisms grouped together. D. Great attention is paid to how much divergence has occurred since species arose from a common ancestor.