Parabasilids are excavates that lack functional mitochondria and lack a Golgi complex
_______________ Indicate whether the statement is true or false.
F, Diplomonads
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In fish, jaws evolved from ________
a. gills b. armor plates around the heads of placoderms c. the spiracle d. supporting structures for gill slits
Which of the following describes an advantage of delayed reproduction in organisms?
a. decreased threats from predators b. decreased reproductive energy budget c. increased potential for parental care d. increased opportunities for mating
In the nitric oxide signaling pathway, nitric oxide activates an enzyme that can convert many molecules of GTP into molecules of cGMP. cGMP is a small molecule that can diffuse through the cytoplasm and bind to an enzyme called protein kinase G (PKG). Binding of cGMP to PKG leads to a change in the confirmation of PKG that leads to its activation. What type of signaling molecule is cGMP?
A. adapter protein B. enzyme C. second messenger D. scaffold
What group of fungi is largely responsible for the reduction in amphibian populations worldwide?
A. Microsporidia B. Ascomycetes C. Basidiomycetes D. Chytridomycetes E. Glomerulomycetes