Mycorrhiza is a mutualistic relationship between ________
a. plant roots and fungi
b. plant roots and bacteria
c. green algae and fungi
d. fungi and cyanobacteria
e. cyanobacteria and zygomycetes
a
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The key defining characteristic of hominids is:
a. the use of tools. b. language. c. opposable thumbs. d. bipedal locomotion. e. loss of supraorbital ridges.
The high glucagon levels in the fasting-phase also stimulate the conversion of free fatty acids to ________, which are used by muscles as a source of energy during fasting phase.
Fill in the blank(s) with the appropriate word(s).
Which list of traits is characteristic of the ecdysozoans?
A. Periodically shed their outer covering, nonsegmented body plan and contain a layer of jellylike fluid called mesoglea, contain an exoskeleton, and undergo metamorphosis. B. Periodically shed their outer covering, segmented body plan and pseudocoelom on some, contain an endoskeleton, and undergo metamorphosis. C. Periodically shed their outer covering, nonsegmented body plan and pseudocoelom on some, contain an exoskeleton, and undergo metamorphosis. D. None of the these are correct.
Ommatidia are found in the compound eyes of
A) mollusks. B) amphibians. C) humans. D) insects. E) flatworms.