Which of the following represents the correct sequence of cell types through which an electrical signal would pass in a reflex arc?
A. sensory neuron ? interneuron in the CNS ? motor neuron
B. motor neuron ? interneuron in the PNS ? sensory neuron
C. sensory neuron ? motor neuron ? interneuron in the CNS
D. motor neuron ? sensory neuron ? interneuron in the PNS
E. sensory neuron ? motor neuron ? interneuron in the CNS
A. sensory neuron ? interneuron in the CNS ? motor neuron
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Match the following items with the correct phrases.
_______1. The number of nanometers in a micrometer. _______2. The resolving power of the compound light microscope is __________ times better than the resolving power of the unaided eye. _______3. The number of micrometers in a millimeter. _______4. The resolving power of the transmission electron microscope is __________ times better than the resolving power of the scanning electron microscope. _______5. The resolving power of the transmission electron microscope is __________ times better than the resolving power of the unaided eye. a. 10 b. 100 c. 1,000 d. 1,000,000 e. 1,000,000,000
Primary growth (lengthening) arises from ____________________. Fill in the blank(s) with the appropriate word(s)
During the alternation of generations in plants, _____
A) meiosis produces gametes B) mitosis produces gametes C) fertilization produces spores D) fertilization produces gametes
The process of oogenesis is completed at ________
Fill in the blank(s) with correct word