Biology, 21.04.2020 02:07 andyyandere8765
Although birds and mammals descended from differentancestors, they both have a four-chambered heart. Thisis the result of:
A) the necessity for rapid movement of blood.
B) convergent evolution.
C) genetic aberrations that resulted from mistakes insomatic cell division.
D) the simplification of the cardiovascular system
Answers: 2
Biology, 21.06.2019 21:30
Facilitates growth and change in neurons and the migration of neurons to different sites in the brain
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Biology, 22.06.2019 09:40
Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.
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Biology, 22.06.2019 13:00
Plant species a has a diploid number of 12. plant species b has a diploid number of 16. a new species, c, arises as an allopolyploid from a and b. the diploid number for species c would probably be a) 12. b) 14. c) 16. d) 28. e) 56.
Answers: 1
Although birds and mammals descended from differentancestors, they both have a four-chambered heart....
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