Which cytoskeletal element anchors the proteins actin and myosin to strengthen the cytosol?
a. intermediate filaments
b. flagella
c. collagen
d. microfilaments
e. centrioles
ANSWER: a
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Four of the five choices listed below are related to a
common fungal group. Select the exception. a. asci b. zygomycetes c. Rhizopus d. zygote e. spore former
Jay has type O blood, and his brother Alon has type AB blood. What are the genotypes of these boys' parents?
a) IAi and IBi b) IAi and IBIB c) IAIA and IBi d) ii and IAIB e) It is not possible to determine the phenotype of the boys' parents from the information provided.
What major feature allows primates to grasp objects?
a. jointed appendages b. an opposable thumb c. an enlarged foramen magnum d. a forelimb with four digits e. a large brain
Which theory states that eukaryotic organelles originated as prokaryotes that survived ingestion by a host cell and
ultimately evolved mutualistic relationships with the host cell? a. endosymbiont theory b. heterosymbiont theory c. obligative symbiotic theory d. facultative symbiotic theory e. autotrophic symbiotic theory