The sea otter is an omnivore that makes up a small portion of the community by weight, yet strongly influences the health, dynamics, and diversity of the entire community of other oceanic species around it. This is an example of a species.

A. flagstone
B. None of the answer choices is correct.
C. keystone
D. capstone
E. cornerstone


C. keystone

Biology & Microbiology

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Which type of cell would have the hardest time exporting waste?

A. long and wide B. large and round C. irregular and long D. smooth and cuboidal

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At the end of the Gram stain, gram-positive bacteria will be seen as purple cells.

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

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Beta-carotene, the biochemical precursor to vitamin A, can be added to rice by using (biotechnology/cloning/recombinant) DNA technology, thereby increasing its nutritional value

What will be an ideal response?

Biology & Microbiology

From the late 1950s to the mid-1960s, numerous experiments using in vitro cell-free systems provided information on the nature of the genetic code. Briefly explain how the use of polynucleotide phosphorylase and the triplet binding assay were used to

decipher the genetic code and why the triplet binding assay was more precise. What will be an ideal response?

Biology & Microbiology