Diatoms can best be described as
a. unicellular and autotrophic.
b. unicellular and heterotrophic.
c. multicellular and autotrophic.
d. multicellular and heterotrophic.
e. multicellular and parasitic.
A
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Purine bases, such as adenine and guanine, have ________ joined ring(s) for their structure, compared to pyrimidine bases, such as cytosine and thymine, that have ________ ring(s) in their structure.
Fill in the blank(s) with the appropriate word(s).
In mitosis, if a "parent" cell has 16 chromosomes, each daughter cell will have how many
chromosomes? a. 64 b. 32 c. 16 d. 8 e. 4
An organism that is neither prokaryotic nor photosynthetic, and must obtain its nutrients by secreting digestive
enzymes into the environment, belongs to which group of organisms? a. Bacteria b. protists
c. Fungi d. Plantae e. Animalia
Auxins are used in rooting powders to encourage the formation of well-branched roots
Indicate whether the statement is true or false