A teratogen is any drug or chemical agent that causes ____________ development in a fetus upon exposure.

a. normal
b. stunted
c. rapid
d. abnormal


Answer: d. abnormal

Biology & Microbiology

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In salamander reproduction, another name for the fertilized egg is the __________

a. zygote b. gamete c. blastula d. gastrula

Biology & Microbiology

Which branch of this phylogenetic tree identifies Eukarya?

a. A b. B c. C d. D e. E

Biology & Microbiology

Which of the following is not a fundamental property of carbon?

A) Carbon-containing molecules are diverse. B) Carbon-containing molecules may form stereoisomers. C) Carbon-containing molecules are stable. D) Carbon has a valence of 4. E) Carbon atoms are most likely to form ionic bonds with one another.

Biology & Microbiology

Which of the following organelles is NOT involved with protein synthesis?

A. The rough endoplasmic reticulum B. The Golgi complex C. The nucleus D. The lysosomes E. All of these organelles are involved in protein synthesis

Biology & Microbiology