Biology, 22.11.2019 09:31 sammamamam7905
The order cetacea includes modern-day whales, dolphins, and porpoises. these marine mammals share common characteristics that have led scientists to make a conclusion about their evolutionary history. cetaceans:
lack gills and must breathe air
give birth to live young rather than lay eggs
have fin bones that are similarly shaped to limb bones
have spines that flex up and down rather than side to side
the characteristics of cetaceans provide evidence that
a.
they evolved from land mammals.
b.
the theory of evolution is incorrect.
c.
they evolved from air-breathing fish.
d.
the bodies of their ancestors never changed.
Answers: 3
Biology, 21.06.2019 17:00
Are produced in the light reactions and used in the calvin cycle. a)nadh and atp b)electrons and sugar c)nadt+ and adp d)sugar molecules
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Biology, 22.06.2019 01:20
And give a detailed description! scientist observes the boundary between two tectonic plates for a decade and finds that no new volcanoes have formed over the course of her investigation. does this result support the theory of plate tectonics? why or why not?
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Biology, 22.06.2019 02:30
Drag each tile to the correct box. arrange the phases of mitosis in the correct order. 1 (condensation of chromosomes) 2 (separation of chromosomes) 3 (formation of spindle fibers) 4 (alignment of chromosomes in the center of the cell) 5 (pinching of the cell membrane)
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Biology, 22.06.2019 04:30
Donde se encuentra el adn nuclear en un organismo eucariota?
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The order cetacea includes modern-day whales, dolphins, and porpoises. these marine mammals share co...
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