Answer:
A) & B)
Explanation:
A) There are certain viruses that are present in both healthy and disease people.
Example: Polio virus is found in many human but it causes disesease in only 1% of human.
B) Viruses require host machinery for replication so they may not replicate in pure culture.
The postulate C is also violated, the virus may not produce disease in non-human experimental host because of inappropriate animal or vaccinated animal etc. Others exception includes, the same disease may be caused by various organisms and different organisms can also cause the same disease.
you could find the answers if u look up the name of it like
4.3 powering the cell: cellu.... answer
The right answer is D) 9 groups of 3 microtubules
Centrioles are the constituents of a so-called centrosome structure: every animal cell has a centrosome, which is made of two centrioles and which together form a functional unit. A centriole consists of nine triplets inclined microtubules, surrounded by a number of proteins.
This is really a math question. If a person is supposed to consume 8, 8 oz glasses of water in one day than you would multiply
8 x 8oz =64 oz. than 64 oz x 30 days= 1920 oz in one month
because that is a large number you might want to break it down to gallons.
1920 oz divided by 128 oz (one gallon)= 15 gallons in one month.
