What group is represented by all of the bacteria species E. coli living inside a cow's intestine?
A) community
B) population
C) ecosystem
D) demographic transition
B
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According to the theory of evolution, those best adapted to the environment will _____
a. survive and reproduce b. not survive c. produce offspring that are genetically identical to the parents d. have lower fertility rates e. have fewer offspring on average
Which of the following genotypes is homozygous?
A) RR B) Rr C) RY D) Yy
You arrive late to a biological seminar. However, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. Immediately, you know that they are talking about a:
A. nucleic acid. B. lipid. C. carbohydrate. D. protein.
Which statement is not true about leishmaniasis?
A) It is a slow infection that can persist for months to years. B) It is preventable by a vaccine which is recommended for travelers to endemic areas. C) Over twenty different Leishmania species may cause leishmaniasis. D) It is transmitted by sand flies. E) It is most prevalent in the tropics and subtropics.