Avirus that, upon infection of a host cell, makes a dna copy of its rna and inserts that piece of dna into the cell’s genome is called a(n)
a. prophage.
b. bacteriophage.
c. endospore.
d. retrovirus

Which list shows the levels of organization of an organism in hierarchical order from left to right, from the smallest to the most complex?

Lola needs to sign 6 invitations. using stopwatch that measures time to tenths of a second, it takes lola 5.3 seconds to sign her full name. going by the accuracy of the stopwatch, which is the most accurate determination for the number of minutes lola needs to sign all 96 invitations

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food