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joja [24]
3 years ago
14

Which ones are from a hurricane?

Biology
1 answer:
Mashcka [7]3 years ago
5 0

A and B because hurricanes have heavy down pour so A, and hurricanes have really strong winds so B.

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2<br>147 What is si system ? write<br>down its two advantages.<br>its any​
Fittoniya [83]

Answer:

SI system consist of standard units of measurement that are defined by International System Of Units.  

Explanation:

SI stands for Standard International. It consist of total 7 units that are accepted internationally,  

 Two advantages of  SI units are:

  1. SI unit is rational system of units, that means one unit denotes one physical quantity.
  2. SI units are internationally accepted which makes researchers and scientist calculations
7 0
3 years ago
Water will act as a Brønsted-Lowry acid with which of the following molecules?
rusak2 [61]
According to Bronsted-Lowry acid concept
 an acid is a that donate a proton" and a base is a "proton acceptor."so
  will look for that molecule to which  <span>H2O</span> "donates" H+to become <span>OH−</span>. so answer will be..
. <span>NH3+H2O→NH+4+O<span>H<span>−
so correct option is NH3
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7 0
3 years ago
Read 2 more answers
The heart is an example of which level of organization within an organism? cell organ tissue organ system
Elanso [62]
Organ

The heart is a muscular organ that is part of the circulatory system.
4 0
3 years ago
Read 2 more answers
Action potentials (nerve impulses) are changes in the membrane potential that, once started, will affect the entire excitable me
stich3 [128]

Answer:

The order of events would be:

4.Threshold stimulus, Na+ channels open.  This is the first event

5.Na+ influx, Depolarization. Second event

2.Na+ channels close, K+ channels open.  This is the third event

1.K+ efflux, Repolarization.  Fourth event

3.Hyperpolarization, K+ channels close

Explanation:

In resting state, the membrane is negative inside, and  K+ concentration is higher than outside.   Na+ concentration is higher outside instead.  

Sodium influx is responsible for membrane depolarization.  It's the event to produce the action potential.  When sodium channels are closing, potassium channels open and K+ go outside until repolarization occurs. But now we have both ions in different sides of the membrane, and this can't be stimulated again to produce other action potential. The membrane will remain refractory to respond to the adequate stimulus until ions migrate to their original sites.  This is Na+ outside, and K+ inside.  This is responsibility of the Na+/ K+ pump, that uses ATP to pump Na+ out, and  K+ in. Once both ions had been relocated in the membrane, this is ready to receive a correct stimulus to produce a new action potential.

6 0
3 years ago
Which type of climate do sahara and kalahari desert have?
gavmur [86]
For the sahara desert highest has been 136.4 degrees and it can getvery low at night even way under 30 degrees

3 0
3 years ago
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