D
Explanation:
With the help T cells , B cells make special proteins called antibodies which stick to antigens on surface of germs stopping them in their track.
Answer: science
Explanation: she was a scientist
Answer:
Clean air and water are limited resources. ... The conservation of natural lands and of working farms and forests can generate financial returns, both to ... In addition to health and food benefits, conserving land increases property values near ... and the creation of trails and parks are often viewed in terms of their costs.
Explanation:
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The position of the eyes of a Macaw are as follows. Each eye is located on either side of the birds head. This is called Monocular vision, opposed to our eyes which are located in front of our head, adjacent to each other. Mono comes from the Greek root word meaning 'alone'. Making it understandable that, that type of vision is more limited. The operation of their eyes, view things differently in comparison to that of binocular vision (what we humans have). They have a more broad view but cannot judge distance or depth very well.
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Claim: Whales evolved from land mammals to water mammals.
Evidence: The first whales evolved over 50 million years. One of the first whales, such as Pakicetus, were land animals with long skulls and carnivorous teeth, much like many adaptable land mammals back then and today.
