b about 3 billion years ago
Biology, 20.09.2021 16:10, JoeAnthony3293
When did photosynthesis begin?
a about 1.2 billion years ago
b about 3 billion years ago
Cabout 4.6 billion years ago
d about 28 million years ago
Answers: 3
Biology, 22.06.2019 10:40, sierralynnbaldp16d4b
Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above
Answers: 1
Biology, 22.06.2019 14:30, ItzMeEmilyyyy
Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.
Answers: 2
Biology, 22.06.2019 17:30, TanelleK9546
Which of the following is not a technology that can be used to conserve resources? a. hydropower b. volcanic power c. natural gas d. geothermal select the best answer from the choices provided a b c d
Answers: 1
Biology, 22.06.2019 18:00, jkgtmhuip3503
How did the work of farmers and breeders in england influence the work of charles darwin
Answers: 1
When did photosynthesis begin?
a about 1.2 billion years ago
b about 3 billion years ago
b about 3 billion years ago
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