While wading in the warm salt water off the beaches of the Florida Keys on spring break, you stoop down to look at the feathery alga shown here

(a) What pigment gives this organism its coloration?
(b) What commercial products are derived from this phylum?


(a) What pigment gives this organism its coloration? Phycobillins
(b) What commercial products are derived from this phylum? Carrageenan is a thickener used in ice cream, toothpaste, and processed cheese. Agar is used in gel capsules. Agarose is used as a medium for DNA separation.

Biology & Microbiology

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A) vivapary B) polygyny C) polygamy D) polyandry

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The inferior vena cava transports blood to the left atrium

____________________ Indicate whether the statement is true or false.

Biology & Microbiology

The chances of survival are greater when trisomy or monosomy involves the sex chromosomes

a. true b. false

Biology & Microbiology

Tomatoes that are planted upside down still grow upright, displaying

A) phototropism. B) lumitropism. C) gravitropism. D) amylotropism. E) thigmotropism.

Biology & Microbiology