Transmission of Plasmodium spp. (malaria) through a mosquito bite is an example of vehicle transmission.
a. true
b. false
Ans: b. false
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Threshold potential refers to the membrane potential required to:
A. open voltage-gated potassium channels. B. initiate an action potential. C. open voltage-gated sodium channels. D. initiate an action potential AND open voltage-gated sodium channels.
The “sixth mass extinction” refers to
a. the end of the dinosaur era b. the rise of predators during the Cambrian period c. what will happen to the human species after a nuclear war d. the rapid loss of biodiversity due to degradation of the environment by humans e. what happened when insects evolved on land
In Escherichia coli, if ?70 is not bound to RNA polymerase core enzyme, active transcription of the gene is not occurring.
Answer the following statement true (T) or false (F)
The larval stage is a(n) _______ stage.
A. sessile B. reproductive C. haploid D. immature