Which of the following respiratory control centers allows you to hold your breath before diving into a
swimming pool?
a. aortic bodies
b. carotid bodies
c. receptors of the medulla
d. the limbic center of the brain
e. higher brain centers of the cerebrum
E
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Polyploid plants tend to produce fewer fruits and flowers, be smaller in size, and not adapt as well to extreme environmental conditions as normal varieties
Indicate whether the statement is true or false
Which term refers to a large opening on a sponge through which water flows?
a. Osculum b. Spicule c. Mesohyl d. Mesoglea
All of the following are true of irradiation methods used for food preservation and sterilization EXCEPT
A) they prolong shelf-life of fruits and vegetables. B) residual radioactivity is left behind on many foods. C) ionizing radiation such as X rays or gamma rays is used. D) they are used for the sterilization of many spices. E) they greatly reduce the number of pathogens present in meats and poultry.
The CRISPR-Cas system of gene editing is based on what naturally occurring biological process?
A) viral defense against eukaryotic defenses B) eukaryotic defense against viral infection C) viral defense against bacterial defenses D) bacterial defense against viral infection