The answer is Na + is entering the cell and the K + is leaving, during the depolarization phase of the action potential open Na + channels allow Na + ions to diffuse into the cell. This inward movement of positive charge makes the membrane potential more positive. The depolarization phase is a positive response sequence where open Na + channels cause depolarization which in re-occurrence causes more voltage gated Na+ channels to open.
Answer:
<u>They produce the materials needed by the sperm to travel to the egg</u>
Explanation:
Seminal vesicles are glands located near the distal end of the vas deferens. They are responsible mainly for the secretion of seminal fluid as the sperm are moved along towards the ejaculatory duct. The seminal fluid contains a substance which stimulates the sperms. The seminal fluid also contains simple sugars e.g. fructose which provide nourishment for the sperms.
Answer:
In thermodynamics, a closed system can be described as a system which can exchange energy from outside but matter cannot be transferred from such a system. This means that the resources present on the Earth cannot be transferred or replaced and the waste can also not be removed. By understanding the concept of the closed system, humans should recognize the fact that many resources such as minerals present on the Earth cannot be replaced and hence, resources should be utilized effectively in a conserved manner. Also, as waste cannot be removed hence humans should stop forming such waste products which cannot be removed or recycled.
IDRK
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I believe the answer is D) Eukarya
