Answer:
When your body does become too cold, its automatic response is to tighten and relax the muscles in rapid succession to warm up. This is also known as shivering.
Answer: D
Explanation: endocrine gland cells that secrete hormones (chemical messengers), which are carried in the bloodstream to the target cells which they act upon
B. Protists more closely resemble members of other eukaryotic kingdoms than they do other protists.
Explanation:
It is difficult for scientists to classify protists into one kingdom because they closely resemble member of other eukaryotic kingdoms than they do other protists.
The protists have a wide variations among themselves that makes them very difficult to classify.
- Protists have a wide-range of diversity within them and they flaunt every rule used to classify them.
- Protists have also shown characteristics of different kingdoms between them.
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Kingdom of life brainly.com/question/5186929
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The proteins that help defend the body against bacteria, toxins, and allergens are called antibodies. The antibody<span> (Ab) protein is also known as an immunoglobulin (Ig).
</span>These<span> large Y-shaped proteins are</span><span> produced by the immune system in order to prevent the body in response to the presence of a foreign substance. The foreign substance is called antigen.
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