Two models for the speed of speciation are based on patterns in the fossil record. Which of the following statements describes the punctuated equilibrium model of evolution? A. Natural selection is unimportant as a mechanism of evolution.
B. Given enough time, most existing species will gradually branch into new species.
C. Species accumulate their unique features rapidly, then change little for the duration of the species.

The answer is overmatching

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.

the glands which are associated with each description is given below:

pancreas - is an endocrine and exocrine gland that secretes juices with enzymes for digestion. salivary glands- with protection and digestion in the mouth. liver- secretes bile for digestion.   lachrymal glands - secrete tears to moisten eyes and protect them from particles and infection.   sweat gland -regulates water, salt, and temperature. oil glands - to form a protective barrier on the skin.   goblet cells - secrete mucus for protection.