In comparing male and female black widows, which has the larger surface-to-volume ratio?
a. males
b. females
A
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Sampling error can be minimized by which one of the following?
a. using a large sample size b. conducting the experiment or observation only once c. throwing out data that does not fit the conclusion d. using a small subset of a larger population e. carefully selecting samples to match the prediction
What kind of habitat does a C4-pathway plant favor?
A) Wet and cloudy B) Cool and moist C) Totally aquatic D) Cool and dry E) Hot and dry
Identify which statement(s) is/are true regarding telomere characteristics.
A. Telomeres allow duplicated chromosomes to become separated into daughter cells during M phase. B. Telomeres are found in all living cells. C. Telomeres cap the ends of linear chromosomes and prevent them from being recognized by the cell as broken DNA in need of repair. D. Telomeres contain repeated nucleotide sequences that are required to replicate the ends of linear chromosomes. E. All of the above are true regarding telomere characteristics. F. Only statements B and D are true regarding telomere characteristics. G. Only statements C and D are true regarding telomere characteristics.
Female birds lay their eggs, thereby facilitating flight by reducing weight. Which "strategy" seems most likely for female bats to use to achieve the same goal?
A) limit litters to a single embryo B) refrain from flying throughout pregnancy (about six weeks long) C) give birth to underdeveloped young, and subsequently carry them in a pouch that has teats D) feed multiple embryos internally using placentas