You are surveying biodiversity on a new island chain. You have counted the number of bat species on one island already. The next island is smaller and farther from the mainland than the one you have just surveyed
According to the theory of island biogeography, the total
number of its bat species should be
____ than on the current island because the rate of immigration to the new island should be
____ and the rate of extinction should be ____ . Refer to Figure 46.17 in your text for help.
Fill in the blank with the appropriate word.
smaller, lower, higher
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According to the principle of segregation, a heterozygous plant with alleles Aa will produce:
A. gametes with only the A allele. B. gametes with only the a allele. C. 50% of gametes with the A allele and 50% of gametes with the a allele, on average. D. gametes in the ratio of 3 A alleles:1 a allele. E. some gametes with the A allele and some with the a allele, but in no predictable ratio.
In what order do sperm move through the structures of the female reproductive tract?
A. cervix, vagina, uterus, oviduct B. vagina, uterus, oviduct, ovary C. vagina, cervix, uterus, oviduct D. endometrium, cervix, uterus, oviduct E. ovary, oviduct, uterus, vagina
Which one is not a function of the liver? a. Maintains amino acid levels
b. Breaks down old red blood cells. c. Storage of vitamins. d. Stores bile. e. Removes toxins from the blood.
The maximum number of individuals of a
species that a given environment can sustain indefinitely defines
a. the carrying capacity of the environment. b. exponential growth. c. the doubling time of a population. d. the density-independent factors. e. all of these