A Sense of Proportion: Arrange the following main sequence stars in order of increasing surface temperature:
Answer: M1, G2, F2, A5, B1
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Biological magnification refers to the
a. increase in size of animals as they progress through a food chain. b. increase in size of organisms as they progress through ecological succession. c. increase in the efficiency of energy utilization as organisms progress through a food chain. d. accumulation of toxic pollutants as animals pass through a food chain. e. growth of organ size within organisms.
The hammer, anvil, and stirrup are located in the
A) inner ear. B) outer ear. C) middle ear. D) auditory canal. E) cochlea.
Answer the following questions true (T) or false (F)
1. Mycoplasmas are named for the large quantities of mycolic acid in their cell walls. 2. Most of the methane produced by methanogens is oxidized by other types of bacteria before it affects Earth's climate. 3. Bacteria in the genus Cytophaga are capable of digesting a wide range of complex carbohydrates and are important for degrading raw sewage.
Which of the following genetic changes would NOT be passed from parent to child?
a. a mutation in a skin cell b. the loss of a chromosome in a sperm cell c. the addition of a chromosome in an egg cell d. a translocation in a gamete