Answer:
In the presence of lidocaine, the action potential was NOT affected at R1 because lidocaine was applied downstream of R1
Explanation:
Lidocaine is an anesthetic that has the power to neutralize neuromal membranes. This anesthetic power allows the ionic fluxes capable of stimulating impulses to be diffused and this allows a dormancy to be achieved. However, when lidocaine is applied downstream to a molecule or structure, the action potential of that structure or molecule is not affected and it may continue to receive impulses.
Lidocaine does not affect the generation of action potentials because it blocks voltage-gated sodium channels.
In the context of neural signaling, lidocaine often functions as a local anesthetic by inhibiting voltage-gated sodium channels, which are necessary for the propagation of action potentials. If the action potential at R1 was not affected in the presence of lidocaine, it could be due to several reasons. One possibility is that lidocaine was applied upstream or downstream of R1, which would not directly impact the action potential at R1. Another possibility is that there are no voltage-gated sodium channels at R1 to be affected by lidocaine.
#SPJ6
Only a living organism exhibits all of the characteristics of life.
Answer:
True
Explanation:
All living things such as plant, animal, human being and micro-organisms on this planet are able to exhibit all characteristics of life such as breathing, movement , reproduction, sensation, growth, excretion, nutrition etc. on their own. They are made of living cells that specializes themselves to perform specific task.
Non living things are not able to exhibit all the above characteristics of living things as they are made up of dead molecules/atoms.
Thus, the given statement is true.
b. in the pycnocline
c. on or in the ocean bottom
d. traveling in ocean currents
Answer: Option C
Explanation: Benthos organisms can be defined as the set organisms that live in the in or near the seabed of the river, lake or stream bottom which is also called as benthic zone.
These organisms live in the sedimentary environment. They have certain adadptations to live in the high pressure conditions.
The food source of animals living in this zone is organic matter, dead and decaying organic matter.
Erwin Chargaff
Rosalind Franklin
Friedrich Miescher
Answer:
C. Rosland Franklin
Explanation:
edge 2023
lipids
nucleic acids
proteins
might create an insertion mutation?
A.a fat molecule
B.a sugar molecule
C.a DNA molecule
D.an A, G, T, or C