A nucleotide is made up of
a. a 5 carbon (pentose) sugar, three phosphate
groups, and a nitrogen containing
(nitrogenous) acid.
b. a pentose sugar, three phosphate groups,
and a nitrogenous base.
c. three pentose sugars, a phosphate group,
and a nitrogenous acid.
d. three pentose sugars, a phosphate group,
and a nitrogenous base.
e. a pentose sugar, a phosphate group, and
three nitrogenous acids
B
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Match each mollusk with the correct taxonomic class.
1. nautili 2. snails 3. chitons 4. clams a. Polyplacophora b. Gastropoda c. Bivalvia d. Cephalopoda
Polypeptide chains take on their tertiary structure and assemble with other polypeptide chains in which organelle?
a. ribosomes b. rough endoplasmic reticulum c. smooth endoplasmic reticulum d. Golgi body e. vesicles
Because of the _____________________, traits carried by early settlers are found in a large fraction of the descendent
population. Fill in the blank(s) with the appropriate word(s).
What is the process that eventually leads to the death of a plant?
A. Senescence B. Outcrossing C. Abscission D. Perennial E. Dichogamy