Red cells take up 40%-50% of the total blood volume
Answer:
They wait for the milk to spoil than they flavor it and make it more creamy or chunky it depends on the item
Answer:
Increased fitness of large-beaked birds, leading to natural selection
(Why: Birds with larger beaks are better able to survive in the new enviornment)
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Answer:
The correct answer is "the S layer may play a role in protecting cells from viruses and predatory bacteria found in nature but not in laboratory cultures".
Explanation:
The S-layer (surface layer) is a part of the cell's envelope comprised of of identical proteins or glycoproteins that could be found in archaes and some bacterias in nature. The function of the S-layer is unknown, however the fact that is only seen in nature suggest that it may play a role in protecting cells from viruses and predatory bacteria found in nature but not in laboratory cultures. It is likely that archaes and bacteria synthesize the S-layer when they recognize viruses and predatory bacteria in nature, the S-layer is not synthesized in laboratory cultures because these pathogens are not present.
