Teratogenic effects of alcohol only occur during the first 12 weeks of pregnancy
a. True
b. False
False
You might also like to view...
What allows each strand of DNA to serve as a template for a new DNA strand during replication?
a. covalent bonding between nucleotide bases b. hydrogen bonds between the deoxyribose and the phosphate groups c. complementary base pairing between purines and purines on opposite strands d. complementary base pairing between pyrimidines and pyrimidines on opposite strands e. complementary base pairing between purines and pyrimidines on opposite strands
Vibrations from an insect trapped inside a carnivorous sundew and thrashing around to escape stimulate the sundew's response. What happens next?
A) The sundew's leaves snap shut and their spiked edges mesh, trapping the insect. B) Thigmotropism is activated, and it kills the insect. C) The plant secretes a cocktail of digestive enzymes that rapidly breaks down the insect's body. D) An electrical shock kills the insect.
Which of the following is characteristic of the circulatory system of arthropods?
A) lack of a heart B) lack of blood C) lack of blood vessels D) lack of distinction between blood and interstitial fluid
Pathogens of the skin often enter via hair follicles and ducts of the sweat glands
Indicate whether the statement is true or false