Which of the following diseases is NOT spread by droplet transmission?

A) malaria
B) influenza
C) pneumonia
D) pertussis


Ans: A) malaria

Biology & Microbiology

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In terms of number of species, the most successful terrestrial vertebrates that invaded the air are  

A.  insects. B.  pterosaurs. C.  birds. D.  bats. E.  flying monkeys.

Biology & Microbiology

Stem and root thickening in eudicots is accomplished by ___ and is called ___ growth

a. lateral meristems; primary b. lateral meristems; secondary c. apical meristems; primary d. apical meristems; secondary e. apical meristems; lateral

Biology & Microbiology

Atlantic mollies of the species Poecilia mexicana live in habitats that make multiple collection trips difficult, yet they live in populations of many small individuals. What variable was measured to estimate and compare their life histories among different conditions?


A. embryo biomass
B. embryo number and embryo biomass
C. embryo number
D. ages of the collected male and female Atlantic mollies
E. numbers and sizes of the collected male and female Atlantic mollies

Biology & Microbiology

In synaptic signaling, neurotransmitters are released into a space that is referred to as a:

A. gap junction. B. plasmodesmata. C. neuron junction. D. paracrine space. E. chemical synapse.

Biology & Microbiology