A negative feedback system has four steps. Please choose the answer that lists the steps in the correct order
a. sensory receptors, stimulus, brain, effectors
b. stimulus, sensory receptors, brain, effectors
c. effectors, brain, sensory receptors, stimulus
d. brain, effectors, sensory receptors, stimulus
e. stimulus, effectors, sensory effectors, brain
ANSWER: b
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Which of the following statements is false?
1.Neurons in the brain can interpret incoming action potentials only in certain ways. 2.Optic nerve impulses can only be interpreted as light. 3.Some sensory receptors do not convert a stimulus to nerve impulses. 4.The stronger the stimulus, the more action potentials are generated. 5.A strong stimulus activates many adjacent receptors, thereby increasing the number of action potentials and the level of awareness of the stimulus.
Fats have _________ calories per gram, while carbohydrates and protiens both have __________ calories per gram.
A. 9.3;4.1 B. 4.1;9.3 C.10;5 D.17.6;6.5
The motility that permits P. bursaria to move toward a light source is provided by _____
A) pseudopods B) a single flagellum featuring the 9 + 2 pattern C) many cilia D) contractile vacuoles
Explain how HATs and HDACs can lead to the formation of cancer
What will be an ideal response?