The venom of a black widow spider is toxic to the nervous system.
B. & C.
A is incorrect because the most complex level of organization is the organism itself, as a whole.
D is incorrect because a cell is what composes different tissues, it isn’t made of different tissues.
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B. The cell is the most basic structural unit of life. They are independent and can perform processes like excrete waste, take in nutrients etc.
C. There are so many different cell types such as muscle cells, stomach cells, bone, neurons, etc. meaning they “specialize” in one thing such as being a stomach cell.
Hope this helps!
Answer: A-T or G-C
Explanation:
The single-nucleotide polymorphism in human genomes is a substitution of a single nucleotide which occur in a specific position at the genome. The A-T nucleotide may appear dominant in the most population, while the remaining minor population may have the G-C nucleotide. The DNA molecule in the population at this site have A-T or G-C.
I think it is that they hibernate?