Secretion of _____ stimulates breakdown of bone
a. glucagon c. thyroid hormone
b. melatonin d. parathyroid hormone
D
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Which of the following is one of the big differences between eukaryotic and prokaryotic DNA replication?
a. Helicase is not used by eukaryotes. b. There is no topoisomerase found in eukaryotic cells. c. In eukaryotic DNA replication, histones must be removed. d. Only eukaryotes have Okazaki fragments to be ligated.
Which term refers to plants that typically grow for many years?
a. perennials b. annuals c. monocots d. biennials e. eudicots
Populations inhabiting favorable environments at low population densities typically experience ________ population growth, resulting in a continuously accelerating rate of population increase
Fill in the blank(s) with correct word
During the winter of 1999, minimum temperatures did not get much below freezing in an Oregon pond, and the following summer, large mosquito populations were observed. In the winter of 2000, frost came early and most ponds were frozen for 3 months
The following summer, very small mosquito populations were observed. This is an example of A) density-dependent regulation. B) density-independent regulation. C) ecosystem carrying capacity. D) community carrying capacity. E) exotic regulation.