Eyes with single lenses that respond to light and darkness are found in many arthropods; these are the
A. compound eyes.
B. ommatidia.
C. apposition eyes.
D. ocelli.
E. superposition segments.
Answer: D
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The grouping "conidial fungi," also known as "imperfect fungi" or deuteromycetes, is a convenience
grouping for fungi that are not classified in other groups, because the conidial fungi
a. have no known sexual phase. b. are unicellular. c. have a dikaryotic phase in their life cycle. d. have a haploid phase in their life cycle. e. lack a cell wall.
The development of the nervous system requires the migration and lengthening of neuronal cells. These events are
driven by ____.
a. pseudopods b. motor proteins c. flagella d. intermediate filaments e. microfilaments
The epilimnion of a lake is located below the hypolimnion.
Answer the following statement true (T) or false (F)
Arabidopsis plants with a mutation in the gene embryonic Flower (EMF) produce flowers almost immediately after germination, before shoot growth occurs. What is the normal role of this gene?
A. The wildtype EMF allele prevents flowering from happening too soon. B. The wildtype EMF allele causes growth of flowers in the embryo. C. The wildtype EMF allele prevents phase change and facilitates flower determination. D. The wildtype EMF allele causes death of the shoot tissue.