The opening of the larynx is called the ________. It is covered by the epiglottis, which prevents food or objects from blocking the airway
Fill in the blank(s) with correct word
glottis
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The cuticle is derived from ________
a. cell divisions of parenchyma cells b. secretions of mesophyll cells c. secretions of epidermal cells d. cell divisions of apical meristem
Humans have disrupted the nitrogen cycle primarily by
a. irrigation. b. cutting down forests. c. using nitrogen-containing fertilizers. d. crop rotation. e. leaching.
Athletes are often told to eat starch before a strenuous athletic event. What monomer can be released from starch after hydrolysis, and what is it used for? Because cellulose (fiber) is made of the same type of monomer as starch, why aren't athletes told
to eat fiber before an event? What will be an ideal response?
Satellite DNA is often found in regions of
a. heterochromatin. b. simple sequence DNA. c. low crossing over frequency. d. euchromatin. e. high G-C content.