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slavikrds [6]
3 years ago
9

In London, peppered moths that were light colored blended in with trees of the area, and were well populated. Over time, polluti

on caused the bark of the trees to darken, causing a shift in the number of light colored moths seen. The darker colored moths survived the predators since they were able to blend in with the darkened tree bark, and they reproduced rapidly.
Biology
2 answers:
bixtya [17]3 years ago
6 0

Answer:

the answer is C the last option

Explanation:

IRINA_888 [86]3 years ago
3 0

Answer:

directional selection

Explanation:

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HELP ME ON QUESION 14
Katena32 [7]
The answer is Gonna be C
8 0
3 years ago
Read 2 more answers
You have just delivered a premature baby. Your assessment reveals that he is breathing adequately; however, his heart rate is 90
s2008m [1.1K]

Answer:

The answer is letter B, keep him warm and ventilate with BVM.

Explanation:

In order to know more about the answer, let's check out the meaning of "Premature Baby" first.

Premature Baby- a baby born through premature birth <em>(fewer than 37 weeks).</em>  Babies are normally born at the usual <em>40 weeks.</em> Health problems may occur with premature babies, thus it is very important to monitor them.  

In the situation above, the premature baby's heart rate is only 90 beats/min. <em>A resting heart rate for a newborn infant is 130-150 beats per minute. </em>This means that the baby above has a slow heart rate. In order to increase the hear rate, it is important to keep the baby warm and to ventilate with a "Bag Valve Mask" (BVM). <u><em>An increase in internal temperature increases the heart rate. Increasing ventilation will also help increase the heart rate. </em></u>

<u><em>Remember: </em></u>Inhalation increases the heart rate.

4 0
3 years ago
How do the main sequence stages of these two sizes of stars differ?
xxTIMURxx [149]
Stellar evolution is the process by which a star undergoes a sequence of radical changes during its lifetime. Depending on the mass of the star, this lifetime ranges from only a few million years (for the most massive) to trillions of years (for the less massive), considerably more than the age of the universe. ^ 

Small, relatively cold, low mass red dwarfs burn hydrogen slowly and will burn for hundreds of billions of years 

Massive hot supergiants will live for just a few million years. 

A mid-sized star like the Sun will remain on the main sequence for about 10 billion years. Hope tis helps!!
5 0
3 years ago
Which is NOT true about homeostasis?
zalisa [80]

Answer:

The answer is A.

Explanation:

It can be regulated with negative feedback loops.

3 0
3 years ago
List any organisms that lack tissues
Aleksandr [31]

Answer: Of all the branches of complex animals, sponges are the only group lacking TRUE TISSUE.

Explanation:

6 0
2 years ago
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