Prions are composed of
a. dna, rna, and protein.
b. protein.
c. dna and protein.
d. rna.
e. dna.

The best answer is B.

Prions are an abnormal form of protein that  has been genetically encoded.

They have no nucleic acid and are therefore very different from  viruses, bacteria, fungi and other pathogens. They are quite resistant to procedures that break down nucleic acids and destroy biological forms of pathogens.

Prions cannot reproduce but they replicate by stimulating normal cellular prion protein to refold into an abnormal  form called PrP Scrapie.

Prions are extremely small, even smaller than viruses.

coconut why: has water in it : )

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.