Answer the question using the accompanying figure. The structures labeled "5" are ____
a. trichocysts
b. micronuclei
c. flagella
d. pili
e. gullet
ANSWER: a
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Mold-lactic fermentation results in a unique fermented milk consumed in Finland and called ________.
Fill in the blank(s) with the appropriate word(s).
The formation of _____ depends on gene action, interactions within the embryo, interaction with other embryos that
may be in the uterus, and interactions with the maternal environm Fill in the blank(s) with the appropriate word(s).
Which of these gases was absent in the early Earth atmosphere at the time life first appeared?
A) nitrogen B) oxygen C) carbon dioxide D) water vapor
A community ecologist might study:
A) all the members of a single species that live together in a single geographic area. B) the behavior of a species in its natural environment. C) the rates of increase or decrease in the population size of individual species in different environments. D) the interactions among species living in a single area.