True.
Epinephrine and norepinephrine are released as fight/flight response hormones when the body is under extreme stress.
Cortisol is released in response to stress too.
Answer (B) , you could have a shell fossil like mines and also have a fossil
Explanation:
They are many diffrent trace fossils in the world trace fossils can be foot prints , leaves tracks and much more
The correct answer is archaea which is last choice above. It
is because archaea is a microbe in which they have the property of not
exhibiting any nucleus or an organelle which they are to be considered more to
be a bacteria because of it.
Answer: A)They generate electricity by contact
Explanation: triboelectricity can be simply defined as a phenomenon where static electricity is produced when two different materials are vigorously and continuously rubbed or come in contact with each other. This vigorous and continous contact allow electrons to jump from one material (atom) to another there by creating static electricity.
This characteristics is evident when an individual walks across a carpet while wearing a wool socks, as the wool and the carpet vigorously and continuously rub against one another, electrons are transfered from the carpet to the socks which spread all over the surface of the body. (The body becomes negativity charged while the carpet becomes positively charged) This is why the individual will feel a shock sensation when he or she goes on to touch the door knob due to the static electricity generated.
Answer:
lack of genetic variation
Explanation:
If you have multiple of the same people there wont be much variation
