Biology, 29.11.2019 21:31 guillmar003
Darwin noticed differences in the beak shapes of finches on the various islands of the galapagos and surmised that they all might have evolved from a common ancestor on the mainland. if darwin had known about molecular biology, a field of study that did not exist at the time he lived, how might he have used it to test his hypothesis?
Answers: 2
Biology, 20.06.2019 18:04
Arafura file snakes are large, aquatic, non-venomous snakes found in the flood-plains of australian rivers. they feed only on fish found in the rivers. it has been observed that heavy rainfall in the wet season in one year leads to prolonged inundation of the floodplains lasting a year or longer. it has also been observed that these snakes remain in good physical condition after a flood. explain how the file snake population in a region is likely to be affected by the prolonged inundation of a flood-plain.
Answers: 3
Biology, 21.06.2019 15:00
6. in the dna double helix, how are the two strands of dna held together? a. chemical bonds between base pairs hold the two strands of dna together. b. hydrogen bonds between the base pairs hold the two strands of dna together. c. hydrogen bonds between sugar groups and phosphate groups hold the two strands of dna together. d. chemical bonds between sugar groups and phosphate groups hold the two strands of dna together.
Answers: 1
Biology, 22.06.2019 08:30
Which statement best describes how the nucleus, the rough endoplasmic reticulum, and ribosomes interact during protein synthesis?
Answers: 3
Biology, 22.06.2019 09:20
Give examples of selective advantage of organism’s body part/organ
Answers: 1
Darwin noticed differences in the beak shapes of finches on the various islands of the galapagos and...
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