Answer:
White dwarfs have an extremely small surface area to radiate this heat from, so they cool gradually, remaining hot for a long time.
Explanation:
As a white dwarf cools, its surface temperature decreases, the radiation which it emits reddens, and its luminosity decreases.
Cell wall is the answer to your question.
Answer:
It's C. They are mostly made up of hydrogen and helium
Normal human gametes carry 23 chromosomes
Answer:
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information.
Explanation:
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