Biology, 16.04.2021 04:10 sugandiwoodbine
Antigens produced by our white blood cells will remain in our body and have a memory to fight off subsequent invaders of the same kind. True or False?
Answers: 2
Biology, 22.06.2019 03:00
Match with o for organic and i for inorganic for each compound
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Biology, 22.06.2019 14:00
The law of thermodynamics states that energy can't be created or destroyed. to natural sources of energy on earth are the
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Biology, 22.06.2019 14:20
Drag the tiles to the correct boxes to complete the pairs. match each cell organelle with its description.
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Biology, 22.06.2019 14:30
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
Antigens produced by our white blood cells will remain in our body and have a memory to fight off su...
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