Biology, 19.12.2019 23:31 foreverisabel
Until the middle of the nineteenth century, all peppered moths (biston betularia) observed around manchester, england, were light in color. in 1845, a single black peppered moth was reported. as manchester became more industrialized and dark soot began to cover the bark of the trees, the frequency of black moths increased greatly. the change in proportion of light and dark forms resulted
select one:
a. disruptive selection.
b. directional selection.
c. stabilizing selection.
d. genetic drift.
e. increased mutation
Answers: 2
Biology, 21.06.2019 21:50
Drag each tile to the correct box. match the given symbol or molecular formula to the term that best describes it. element -organic compound -inorganic elemental molecule -inorganic compound -answers given: so2, k, ci2, c6h6
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Biology, 22.06.2019 01:00
The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime
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Biology, 22.06.2019 08:00
Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.
Answers: 1
Biology, 22.06.2019 08:10
Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees
Answers: 2
Until the middle of the nineteenth century, all peppered moths (biston betularia) observed around ma...
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