The tissue containing nerves, blood, and lymph vessels in teeth is known as the:a
dentin.
b. cementum.
c. enamel.
d. tooth socket.
e. pulp cavity
e
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What is the main cause of carbon dioxide build-up in the atmosphere?
a. burning fossil fuels b. deforestation c. droughts d. flooding e. respiration due to overpopulation
What is a likely explanation for a high ratio of forced expiratory volume to forced vital capacity?
a. pneumonia-reduced lung capacity b. asthma-induced exhalation resistance c. lung inflexibility due to lung fibrosis d. increase tidal volume due to aerobic exercise
Like other animals, penguins of the north can keep
warm because of layers and patches of __________ in their bodies. a. adipose tissue b. proteins c. carbohydrates d. sterols e. phospholipids
Which assisted reproductive technology involves the maturation and fertilization of the egg within laboratory glassware, followed by transfer of the embryo to the uterus 2-4 days later?
A. Surrogate mother B. In vitro fertilization C. Artificial insemination D. Intracytoplasmic sperm injection E. Gamete intrafallopian transfer