Most other mammals could not survive the extreme environment that whale inhabit. Discuss the adaptations whales have evolved to cope with life in the Arctic Ocean. Include water and heat conservation and salt excretion
What will be an ideal response?
An introduction stating that mammals evolved on the land and that the move to a cold marine environment requires special adaptations. For heat conservation, the essay should mention countercurrent exchange in the flippers and possibly insulation and body morphology. For water and salt, the essay should mention the efficient kidney that allows for salt excretion and water conservation.
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The term genome refers to the complete complement of sequences and genes that an organism possesses
Indicate whether the statement is true or false
The parietal cells of the stomach are responsible for producing
A) mucus. B) pepsin. C) hydrochloric acid. D) bile.
If needed (as in the absence of insulin), fatty acids in the liver can be metabolized and used for energy. The eventual breakdown products of fatty acids in the liver are known as:
A) Ketone bodies B) Glycoleins C) Amino acids D) Pyruvic acids
Aminoglycosides
A) Are metabolic analogs of PABA and block folic acid synthesis. B) Block peptidases that cross-link glycan molecules. C) Interfere with elongation of peptidoglycan. D) Damage cell membranes. E) Attach to the 30S ribosomal subunit and disrupt protein synthesis.