C. their DNA is very different
Answer:
The nucleus is an organelle found in eukaryotic cells.
Explanation:
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at sea level in arterial blood it is between 35 mmHg and 45 mmHg. at sea level in venous blood it is between 40 mmHg and 50 mmHg
I hope this is right and helps:)
Answer: b
Explanation:
Dominant lethal alleles can be passed down if the individual can live to a reproductive age. The individual can then have children and can possibly pass down the lethal allele