An example of an animal that has a nerve net of interconnected neurons instead of a brain is a(n) ____

a. planarian
b. earthworm
c. grasshopper
d. sea anemone
e. squid


ANSWER: d

Biology & Microbiology

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Four of the five choices listed below are threats to

species survival. Select the exception. a. habitat loss b. introduction of exotic species c. overharvesting d. illegal wildlife trading e. strip logging

Biology & Microbiology

All of the following happen during aerobic training EXCEPT ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

During exercise, your cardiac output can increase dramatically in order to meet the metabolic demands of your tissues. If your heart rate increased to 150 beats per minute and the volume of blood pumped per beat is 75 mL, what is your cardiac output?

A) 5 L/min B) 11.25 L/min C) 11,250 L/min D) 50,000 L/min

Biology & Microbiology

Hoxc8 is nearly identical in all animals, but Hoxc8 enhancer differs in:

A) the RNA base sequence. B) the DNA base sequence. C) the sequence of amino acids. D) the DNA base sequence and its DNA-binding proteins. E) DNA-binding proteins.

Biology & Microbiology