Which of the following do not belong in a clade with the others?

a. Brown algae
b. Red algae
c. Chlorophytes
d. Charophytes
e. Land plants


Answer: a. Brown algae

Biology & Microbiology

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For an enzyme to function it requires

a. oxygen. b. a suitable substrate. c. a considerable amount of activation energy. d. ATP. e. all of these.

Biology & Microbiology

Because enzymes affect the speed of chemical reactions without being consumed, they are referred to as:

a. catalysts. b. cytochromes. c. activation energy. d. hydrogen acceptors. e. transformation proteins.

Biology & Microbiology

What characteristic of a water molecule accounts for its polarity?

A. its cohesiveness B. its ability to act as a solvent C. its unequal sharing of electrons D. the hydrogen bonding to neighbouring water molecules

Biology & Microbiology

What change would result for a land snail that had a mutation interfering with chitin formation?

A. Molting would not be possible. B. It would have a soft, demineralized shell. C. It would have difficulty feeding. D. It could not form its exoskeleton.

Biology & Microbiology