Answer: The main function of the pineal gland is to receive information about the state of the light-dark cycle from the environment and convey this information to produce and secrete the hormone melatonin.
Explanation:
They evolve alongside each other, the predator evolves to become faster, better camouflage itself, immunity to the poison of a prey, and likewise the prey evolves to become faster to avoid the predator, camouflage to hide, poison to keep the predator at bay and this cyclic relationship continues with only the strongest and fastest of each species reproducing, just increasing the strengths of both animals.
The predator is almost always larger, and a carnivore.
With the prey generally being smaller and herbivore.
It is possible to use the information of the nucleotide sequence of one strand to determine the sequence of the other strand.
- Deoxyribonucleic acid (DNA) is a biological molecule with two strands. Each strand is made up of a sequence of nucleotides. The DNA nucleotides are Adenine (A), Cytosine (C), Guanine (G) and Thymine (T).
- In a DNA molecule, Adenine forms an hydrogen bond with Thymine i.e. A-T, while Guanine forms an hydrogen bond with Cytosine i.e. G-C.
- Therefore, it is possible to use the information of the nucleotide sequence of one strand to determine the sequence of the other strand. For example, a strand with ATGCGTACGAT will form the following sequence: TACGCATGCTA
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Answer:
d. the presence in the body of the virus that causes AIDS