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

Biology & Microbiology

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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

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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

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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

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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

Biology & Microbiology