Answer:
It targets and gradually weakens the body's immune system by damaging cells called CD4 T cells. This damage means that, over time, the body becomes less able to fight off other infections. If the immune system becomes impaired enough, infections that are typically mild can be life threatening.
B. identical body cells
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Answer: The contracting cloud is then called a protostar. A protostar is the earliest stage of a star's life. A star is born when the gas and dust from a nebula become so hot that nuclear fusion starts.
Explanation:
The plasma membranes is composed of a phospholipid bilayer with embedded proteins. What is one of the emendded proteins? Preventing do you