The information stored in the DNA sequences is used directly as a template to make ___________

(a) lipids.
(b) RNA.
(c) polypeptides.
(d) carbohydrates.


(b)

Biology & Microbiology

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Match the following items with the correct phrases.

_______1. When two microorganisms occupying the same environmental niche have absolutely no effect upon each other, it is known as ____________________. _______2. Bacterial vaginosis is an example of ____________________. _______3. ____________________ is a symbiotic relationship of benefit to one of the symbionts, but neither beneficial nor harmful to the other. _______4. ____________________ is a symbiotic relationship of benefit to one of the symbionts, and detrimental to the other. _______5. A lichen is a classic example of ____________________. a. commensalism b. mutualism c. neutralism d. parasitism e. synergism

Biology & Microbiology

The micropyle is ____

a. the mature male gametophyte b. the inner seed coat c. a small opening at one end of an ovule d. a passageway through the style for sperm e. the eight-cell stage of a plant embryo

Biology & Microbiology

Evolution by natural selection was conceived and written about in the 1800s by ________

A) Alfred Russel Wallace B) Charles Darwin C) W. C. Wells D) Patrick Matthew E) All of the above

Biology & Microbiology

Which sequence accurately describes the flow of electrons in photosynthesis?

A) Photosystem I ? photosystem II ? H2O ? NADP B) H2O ? photosystem II ? photosystem I ? NADP C) Photosystem I ? photosystem II ? NADP ? H2O D) Photosystem II ? photosystem I ? NADP ? H2O E) H2O ? photosystem I ? photosystem II ? NADP

Biology & Microbiology