Which of the following is the most broad-spectrum antibiotic?
a. penicillin
b. erythromycin
c. acyclovir
d. tetracycline
Ans: d. tetracycline
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The primary consumer is also
a. the second link in a food chain. b. a herbivore. c. an animal. d. a herbivore and an animal. e. the second link in a food chain, a herbivore, and an animal
Which statement about promoters is true?
a. They are long sequences in DNA. b. They are locations in DNA where regulatory proteins do not gather. c. They control transcription. d. They are associated with all genes. e. They slow the rate of transcription.
Stereoscopic vision lets primates integrate visual information from both eyes simultaneously
____________________ Indicate whether the statement is true or false.
In seed plants, __________ allow reproduction without standing water.
Fill in the blank(s) with the appropriate word(s).