Scientists hypothesize that disrupting our ________ communities may increase our susceptibility to infectious diseases, predispose us to certain cancers, and contribute to conditions such as asthma and other allergies, irritable bowel syndrome,
Crohn's disease, and autism.
A) microbial
B) exotoxin
C) protist
D) pathogen
A
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A sparrow learning the song of its species is considered ________. a. imprinting b. habituation c. None of these choices
d. a fixed action pattern e. instinctive behavior
What developmental landmark occurs at day 15 in humans?
a. primitive streak b. neural tube c. yolk sac d. pharyngeal arches
e. somitesAn organic compound that provides instructions for the synthesis or production of polypeptide chains is referred to as which of the following?
A) lipids B) DNA C) ATP D) nucleotide
What does the Nernst equation allow us to do?
A. Calculate the magnitude of depolarization during an action potential B. Calculate the equilibrium potential for an ion C. Predict the function of a specific type of neuron D. Use a computer program to model axonal transmission