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Naddik [55]
2 years ago
9

Question 6 (2 points)

Biology
2 answers:
Marysya12 [62]2 years ago
7 0
Water is a polar molecule
bija089 [108]2 years ago
7 0

Answer:

polar molecule is the right answer

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You are riding a roller coaster at Valleyfair. At what point in the ride is the system in a state of equilibrium?
olga nikolaevna [1]

Answer:

Stopped on the tracks at the entrance

Explanation:

I took the quiz

7 0
3 years ago
During the course of an action potential, the membrane potential rapidly rises and reaches a peak of about +40 mV before falling
ad-work [718]

Answer:

A)  A decrease in Na+ permeability, and an increase in K+ permeability.

Explanation:

When the potential action reaches a peak of about +40 mv Na+ channels are open and a high number of Na+ ions are entering the inside of the cell. Shortly after this happens the K+ channels will start to open their gates increasing the cell  K+ permeability  while the Na+ channels will start to close their gates, so the Na+ permeability will decrease. This happens  in order to valance the positive charge on the inside of the cell. Normally the inside has a negative charge while the outside has a positive one, as the inside is more positive due to the increase in Na+ permeability at the beginning of the potential action, K+ cations (which are in abundance in the cell) will have to go out through the K+ channels  so as to restore the charge valance, that means that there is an increase in K+ permeability.

3 0
3 years ago
Why does an octopus or squid use its tentacles?
spin [16.1K]
Octopus and squid have little suction cups on their tentacles. It helps with sticking onto food (so it doesn't get away) and also helps with sticking into things. If it wanted to camouflage into some rocks, it can use its tentacles to cling to to the rock.

Tentacles can also grab and carry things. Scientists have made tests where they would put a clam in a jar with the lid screwed on. The octopus would grab onto the jar and use its tentacles to twist the lid off.

Without tentacles, octopuses and squids would be pretty helpless and probably couldn't survive in the deep ocean.
8 0
3 years ago
Read 2 more answers
What does this symbol indicate on a weather map?
SIZIF [17.4K]

Answer:

A. An area with low air pressure

Explanation:

The red "L" symbol is used to mark an area with a low pressure air system. A low air pressure system would cause thunderstorms, but the "L" does not mean that the area marked would cause a tornado.

Option A should be the correct answer.

6 0
3 years ago
Why might a scientist want to disrupt the plasma membrane and how might they do this experimentally?
kupik [55]

It is possible to disrupt the plasma membrane by using enzymes and/or detergent agents.

<h3>What is the plasma membrane?</h3>

The plasma membrane is a lipid bilayer that is mainly composed of phospholipids and cholesterol.

In laboratory conditions, it is possible to disrupt this lipid bilayer by using detergent and proteins (enzymes) that break the bonds binding phospholipids.

For example, enzymes can break down the double bonds that bind fatty acids in the lipid bilayer.

In conclusion, the plasma membrane can be break down by applying enzymes and detergents.

Learn more about the cell membrane here:

brainly.com/question/1768729

#SPJ1

6 0
2 years ago
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