Answer:
1. The animal can't see what happening behind its head.
2. Head can be moved upto 180 degree angle in most of the animals including humans. But it is not true in case of birds.
Explanation:
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Answer: False
Explanation: Valley glaciers are not known to spread throughout a whole continent. A valley glacier is usually formed within a mountain range. They are fed by ice caps and generally shaped as a narrow ribbon or stream of ice between two valley walls. Valley glaciers are commonly found in Alaska and in parts of the Alps.
Answer:
At low temperatures, however, cholesterol has the opposite effect: By interfering with interactions between fatty acid chains, cholesterol prevents membranes from freezing and maintains membrane fluidity. Although cholesterol is not present in bacteria, it is an essential component of animal cell plasma membranes.
Sex cells have one set full set of chromosomes. Body cells have two
