Biology, 07.04.2021 02:40 Dashavu4626
Seasonal changes occur when the Earth moves so that the Northern Hemisphere and the Southern Hemisphere are tilted more toward or away from the Sun. If the Northern Hemisphere is tilted toward the Sun and it is summer, what is happening in the Southern Hemisphere?
A. The Southern Hemisphere is tilted toward the Sun, and it is summer.
B. The Southern Hemisphere is tilted away from the Sun, and it is summer.
C. The Southern Hemisphere is tilted toward the Sun, and it is winter.
D. The Southern Hemisphere is tilted away from the Sun, and it is winter.
Answers: 3
Biology, 21.06.2019 18:50
Ectocarpene is a volatile, sperm cell-attracting material released by the eggs of the seaweed ectocarpus siliculosus. its constitution is all the double bonds are cis, and the absolute configuration of the chirality center is s. draw a stereochemically accurate representation of ectocarpene.
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Biology, 22.06.2019 00:20
1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.
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Biology, 22.06.2019 08:20
Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.
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Seasonal changes occur when the Earth moves so that the Northern Hemisphere and the Southern Hemisph...
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