A hypothesis supported by one experiment can be considered a theory
a. true
b. false
Answer: b. false
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In determining who should receive liver transplants, should lifestyle be a factor?
1.No, lifestyle factors should not be considered in transplant decisions because everyone should have an equal opportunity for a transplant. 2.Yes, lifestyle factors should be taken into account when determining who gets a transplant and people who have liver damage due to past behavior should be given a lower priority.
The large, central canal of a poriferan is know as the:
1.Choanocyte
2.Osculum
3.Porocyte
4.Spongocoel
Type II survivorship curves
a. are characteristic of humans and elephants. b. indicate a fairly constant rate of death at all ages. c. indicate a high mortality rate in the very young. d. are characteristic of species in which most individuals live a relatively long life and die of old age. e. are typical of species with high biotic potentials.
A transgenic organism is one that
A) changes gene frequency over time. B) provides gene information to another organism. C) changes gender over time. D) has received genetic information from another organism.