Biology, 31.01.2020 01:48 iamalexander256
In 1831, charles darwin visited the galapagos islands. while observing the giant land tortoises that lived on these islands, darwin noted that the shape of the tortoise shell varied depending on which island the tortoise lived. tortoises on one island had round shells, for example, whereas tortoises on a neighboring island had more flattened, saddle-shaped shells. which statement best summarizes darwin's explanation for these differences? a) random mutations caused the shape of the shells to fluctuate periodically. b) the shape of the tortoise shell varied because the predators on the islands were all similar. c) the particular shape of the shell was best suited for the island on which the tortoise was living. d) tortoises who used their shells in special ways caused the shells to become larger, rounder, or flatter.
Answers: 2
Biology, 22.06.2019 03:00
Lola needs to sign 6 invitations. using stopwatch that measures time to tenths of a second, it takes lola 5.3 seconds to sign her full name. going by the accuracy of the stopwatch, which is the most accurate determination for the number of minutes lola needs to sign all 96 invitations
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Biology, 22.06.2019 09:00
What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.
Answers: 2
In 1831, charles darwin visited the galapagos islands. while observing the giant land tortoises that...
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