Answer:
The answer to the question: Electrical impulses or action potentials (AP) cannot propagate across a synaptic cleft. Instead, neurotransmitters are used to communicate at the synapse, and re-restablish the AP in the post-synaptic cell, would be, true.
Explanation:
Essentially, although the CNS, PNS and ANS (Central Nervous System, Peripheral Nervous System and Autonomic Nervous System) are electrical systems, that use the electricity generated through action potentials, that in turn, are created by the exchange of electrically charged ions from within and without the neuronal cells, these electrical impulses do not pass the pre-synaptic, and post-synaptic cleft. Instead, once an AP has reached the terminal end of the pre-synaptic neuron, neurotransmitters are released by this one, into the cleft, which are then taken up by the receptors present in the post-synaptic neuron. Depending on the type of transmitter released, there will be an inhibitory or excitatory effect. Then, with the transmitter attached, the post-synaptic neuron will depolarize and a new AP will be generated in the post-synaptic neuron, which will carry on. Messages, thus are transmitted that way between neurons, and also, between the nervous system and the organs they influence.
Answer:
The correct answer is B.
Explanation:
During the follicular phase (first half of female cycle), follicles in the ovary begin developing under the<u> influence of </u><u>FSH.</u> <em>The follicle that acquires more FSH receptors will become </em><em>dominant</em> and will produce more estrogen and inhibin hormone than the others. Inhibin will reduce FSH level and as a result the other follicles will fail to keep growing. At this stage the dominant follicle will become FSH independent.
Estrogen produced by the dominant follicle will stimulate LH secretion. After approximately 24-36 hours from when LH reaches its peak level, the dominant follicle releases an ovocyte. <em>This event is called ovulation.</em>
Answer:
B. eating increases the amount of oxygen available during exercise
Answer:
d. cell membranes
Explanation:
The movement of the the fluid is a combination of both the osmotic and the hydrostatic pressures.
Osmotic pressure results from the differences in the solute concentrations across the cell membranes. On the other hand, hydrostatic pressure results from pressure of the blood as it enters the capillary system, forcing some amount of the fluid out of vessel into surrounding tissues.
<u>As a result of these factors, the fluid movement occurs through cell membrane.</u>
Answer: $25,434.12
Explanation:
Gross income refers to the sum of all the salaries, wages, interest payments, rents, profits, and every other forms of earnings, before tax is removed.
Since the first Income earned is $15,667.88 while the second income is $9766.24, then Kyra's gross income from the two jobs will be:
= $15667.88 + $9766.24
= $25434.12
