Answer:
Dr. Reside's experiment can not be considered effective because his study has only treatment subjects group and lack of control group. That's why his study can be very good but not valid without control group.
In his study, he concluded that 80% children after therapeutic treatment decreased the activity level which can be true but not valid without control group because when he use control group in his study then we will be able to compare the normal or control group and treatment group. Then the study will be valid and effective as well.
The answer to your question is. True
Answer:
The correct answer is - Adrenal glands and the thyroid both secrete hormones.
Explanation:
Adrenal glands are triangular glands that are located on top of kidneys and produce hormones cortisol and aldosterone. These hormones that are produced by adrenal glands help regulate metabolism, response to stress, immune system, and blood pressure.
Thyroid glands are located on the front of the neck and appeared like a butterfly shape, this gland produces thyroid hormones T3 and T4 mainly to regulate the metabolism of the person.
Answer:
Myelinated Axons; leak channels are insulated by myelin leading to less loss of current flow and better conduction velocity. Ion channels omly located at nodes of ranvier; thus signal has sultatory conduction along myelin sheaths and jumps and move much quicker
Demyelinating diseases; along locations where myelin sheaths once was current links occur and conduction slows, the signal cannot make it very far because it looses energy as it travels through the axon
Unmyelinated axon; Ion channels are sequentially placed all along axons; thus it takes longer to send signal down axon. the energy isn't leaked out, it still contains the same signal but it is simply slower. distance between voltage gated channels needs to be small enough so local current flow can depolarize the membrane.
N/B; Harder to generate action potential in demyelinating disease
axon diameter( bigger diameter= less resistance= faster current).
Number 1 potato salad because you ate supposed to keep potato salad cold until you eat it.
