Cells contain organized structures that perform a specific function. These are known as:

A) organelles. B) prokaryotes. C) organs. D) cytoplasm. E) tissues.


Answer: A

Biology & Microbiology

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Which of the following leads to the occurrence of vertebrate sense organs?  

A.  both adrenal medullary cells and sympathetic neurons derive from the neural crest B.  neural crest cells form both neurons that carry messages and cartilaginous bars C.  the neural crest and associated sensory ganglia D.  formation of the endoderm E.  formation of the autonomic nervous system

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Distinguish between major minerals and minor minerals

What will be an ideal response?

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In the GAL gene system, ________ are cis-acting regulatory elements, and ________ protein is a trans-acting regulatory protein

Fill in the blank(s) with correct word

Biology & Microbiology

If you looked at unknown cells under a microscope, what could lead you to correctly conclude that they are prokaryotic cells?

A) They appear to have a cell wall. B) They lack a nucleus. C) They are oblong in shape. D) They form a colony.

Biology & Microbiology