Infections by "flesh-eating bacteria" can occur when exotoxins A, B, C, and E and the bacterial surface M protein of Streptococcus pyogenes act as superantigens
Indicate whether the statement is true or false.
Answer: TRUE
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What is the first thing that happens after neurotransmitter molecules bind to receptors located on a neuron’s dendrites?
a. The plasma membrane is depolarized, resulting in a decrease in the voltage across the neuron membrane. b. Sodium ions enter the neuron. c. An electrical signal is received by the dendrite, and it then travels passively to the neuron body. d. The neurotransmitter opens ion channels in the dendrite’s plasma membrane.
I2KI is used to test for the presence of sugars
a. True b. False
Where does the cholesterol found in your body come from?
What will be an ideal response?
The size at which a population stabilizes in a particular place is defined as the __________ for that species.
A. growth potential B. optimum C. range D. carrying capacity