Answer: a star expels most of its outer material until only the hot core remains, which then settles down to become a young a white dwarf
Explanation:
Explanation:
1). Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Chromosomes are not visible in the cell’s nucleus—not even under a microscope—when the cell is not dividing.
2) is pic
Answer:
The Sun is the major source of energy
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Answer:
b. All organisms would appear purple (gram-positive)
Answer:
Extra chromosomes can result in birth defects like down syndrome .
Explanation: