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patriot [66]
3 years ago
12

What causes reactive hyperemia to increase tissue perfusion? local controls hormonal controls respiratory controls urinary contr

ols?
Biology
1 answer:
Over [174]3 years ago
6 0
I believe that local controls are what causes reactive hyperemia to increase tissue perfusion. Reactive hyperemia or venous hyperemia is the transient increase in organ blood flow that occurs following a brief period of ischaemia. 
Tissue perfusion is the decrease in oxygen resulting in the failure to nourish the tissues at the capillary level. Local blood flow regulation involves the rapid control of arterial vasomotion based on the metabolic needs of the surrounding tissues and cells. 
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The amount of water that evaporates from earth is _____.
amid [387]

Answer:

The amount of water that evaporates from earth is roughly equal to the amount that falls as precipitation.

Explanation:

In the hydrological cycle, evaporation consists of the conversion of liquid water into water vapor, which reaches the atmosphere. Once the water vapor condenses produces precipitation in the form of rain, snow or hail.

<u>On the earth the amount of water that evaporates is proportional to the water that falls as precipitation</u>. The mass of ocean water is substantially greater than the amount of land, so variations in the proportion of evaporated water and precipitation occur in the hydrological cycle:

  • <em>In the oceans, evaporation is greater than the precipitation that occurs. </em>
  • <em>On the continents - firm land - evaporation is less than precipitation. </em>

This produces a certain grade of compensation in which, globally, the amount of water that evaporates from the earth is roughly equal to the amount that falls as precipitation.

Learn more:

Hydrological cycle brainly.com/question/13189254

6 0
3 years ago
How long would it take
Valentin [98]
Solution:
4.2 x 10^6 bp/10^3 bp/seconds         = 4.2 + 103 s which is 4200 seconds and equivalents to 70 minutes

In addition, assuming a pause of 2 seconds for re initiating after completing every okazaki fragment and assuming the okazaki fragments average 1000 nucleotide long.  
4.2 x 10^6 bp/10^3 bp                        = 4200 okazaki fragments                           4200 * 2 seconds                               = 8400 seconds which is 140 minutes or 2 hours 20 minutes of pauses alone.                                                                        

Therefore, overall time would be pauses plus the 70 minutes so total time of 210 minutes. Assuming that the replisome completely disassociates from the DNA after every okazaki fragment and must spend one-minute rebinding.

4200 okazaki fragments. 60 seconds rebinding time per fragment:                        4200 x 1 minute = 4200 minutes rebinding time plus 70 minutes for actual replication. 4200 minutes is 70 hours which is almost 3 days. 
3 0
4 years ago
The principle of _____ suggests that a gene pair separates during gamete formation?
jenyasd209 [6]
The word in the blank should be 'segregation' :)
5 0
3 years ago
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A scientist writes in a report the worm is 2 centimeters long which best describes this type of statement
svetoff [14.1K]

Answer:

it is true

Explanation:

6 0
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The Meselson-Stahl experiment provided the first experimental evidence that: A. Newly synthesized DNA in E. coli has different n
Ksju [112]

Answer:

the answer is a

Explan:

4 0
3 years ago
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