The ________ [two words] is a well-known set of soft-bodied organisms living just before the Cambrian period, which probably includes at least simple animals and early bilaterians

Fill in the blank(s) with correct word


Ediacara biota

Biology & Microbiology

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Microscopic fossils are also called microfossils

A. These minerals are needed as cofactors for enzymes needed in photosynthesis. B. These minerals are needed as cofactors for enzymes needed in cellular respiration. C. These skeletons allow for more complex reactions to take place inside the cell. D. These skeletons probably afforded them protection from being eaten. E. These minerals are necessary to maintain genome integrity.

Biology & Microbiology

Cloned genes can be used to

1.study gene function. 2.produce a large amount of a particular gene for study. 3.produce proteins in quantity. 4.introduce known mutations to study gene function. 5.All of the options are correct.

Biology & Microbiology

As urine moves through a nephron, it is modified by ions, water, and other materials either being secreted into the fluid or by efflux of substances out of the urine

However, such modifications do not occur in which one of the following regions of the nephron? A) loop of Henle B) collecting duct C) Bowman's capsule D) proximal tubule E) distal tubule

Biology & Microbiology

Complement is found in the

A) red blood cells. B) white blood cells. C) platelets. D) plasma.

Biology & Microbiology