Nucleic acid contains

a. sulfur.
b. nitrogen.
c. potassium.
d. iron.
e. manganese.


b

Biology & Microbiology

You might also like to view...

Variation arises in asexually reproducing populations by ________

a. mutation b. all of the choices c. natural selection d. recombination

Biology & Microbiology

During the third phase "3", the population

growth slows and then levels off because

a. essential resources become scarce. b. the carrying capacity has been reached. c. competition for food becomes increasingly important. d. predators eat fawns as they are born. e. all of these occur except "predators eat fawns as they are born."

Biology & Microbiology

Answer the following statements true (T) or false (F)

1.The two main branches off the trachea are called bronchi. 2.Filter feeders are autotrophs. 3.Cows are ruminants that rely on fermenting bacteria to break down plant matter. 4.The stomach organ produces amylase to aid in starch digestion. 5.When a single-celled ciliate protist engulfs a food particle through its mouth-like oral groove, it is performing extracellular digestion.

Biology & Microbiology

Which graph shows that species diversity is

much less at the equator than at 60 degrees north latitude? a. A b. B c. both d. neither e. not enough data is provided to answer the question

Biology & Microbiology