Prokaryotic cells ________
a. reproduce mainly by prokaryotic fission
b. have membrane-bound nuclei containing DNA
c. are always spherical
d. contain membrane-bound organelles such as mitochondria
a
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Which of the following best describes the process of ventilation?
A) the movement of oxygen gas through the blood of the circulatory system B) the movement of carbon dioxide gas through the blood of the circulatory system C) the movement of the respiratory medium past the respiratory surface D) the diffusion of gases into and out of the circulatory system E) the diffusion of gases into and out of tissues where cellular respiration occurs
Which list is arranged from the smallest to the largest organization level?
a. tissue, organ, organ system b. tissue, organ system, organ c. organ system, organ, tissue d. organ system, tissue, organ e. organ, organ system, tissue
The gastrointestinal tract has both a long tube that nutrients traverse from mouth to anus and accessory organs that aid in food digestion. From the following list of organs in the digestive system, identify the mismatch.
A. Salivary glands; accessory organ B. Pharynx; part of the digestive tube C. Rectum; part of the digestive tube D. Liver; part of the digestive tube E. Appendix; accessory organ
Refer to the accompanying figure with the lateral line organs of fishes. The structures indicated by label 1 are:
a. hair cells.
b. cupula.
c. stereocilia.
d. sensory neurons.
e. supporting cells.