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Jlenok [28]
3 years ago
12

Lesson 19: Evolution Unit Review

Biology
1 answer:
tia_tia [17]3 years ago
5 0
Https://quizlet.com/668110/chapter-19-evolution-review-flash-cards/
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An 8-month-old infant is eating and suddenly begins to cough. The infant is unable to make any noise shortly after. You pick up
lesya [120]

Answer:

The five-and-five first aid action recommended by the red cross

Explanation:

When an infant is choking and becomes unresponsive, the five-and-five approach is recommended as a first aid treatment to dislodge the material blocking the airway.

<em>The five-and-five action involves alternation between giving the subject five back blows and five abdominal thrusts until the the choking material is dislodged or the subject becomes unconscious.</em>

If the infant becomes unconscious, CPR should be performed and further help should be sought.

4 0
3 years ago
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Explain how temperature and precipitation are affected by latitude and the sun's rays.
Licemer1 [7]
Latitude is the measurement of the distance of a location on the Earth from the equator. The further away from the equator that you are the less sunlight that this location receives. ... At the Equator, the Sun's rays strike the Earth at a right angle, which makes the heat more intense and concentrated over a small area.
8 0
3 years ago
What is the function of restriction endonucleases in bacteria?
ki77a [65]

Answer:

The restriction endonucleases in bacteria (b) they provide a defense mechanism against infection by viruses

Explanation:

The restriction endonucleases is a protein that is produced by the bacterias that interacts with the DNA of them and gives protection to the bacterial cell by defending against viruses.

Is important to remember that viruses go into different organisms just with a copy of DNA that wants to replicate inside of them creating more and more copies until it breaks the hosting cell and this is how the infection spreads. This protein restricts (that's the reason of its name) or stops the replication stage of the virus DNA by cutting it into many pieces stopping in this way the spread of the infection and the death of the bacteria.

7 0
3 years ago
If the bird population were to be wiped out due to disease, how would this affect the evolution of beetle coloration?
r-ruslan [8.4K]

Answer:

Birds are commonly known to eat beetles, and if the birds were wiped out, beetles wouldn't have the need to be the colors that they are. They wouldn't have a reason to hide from birds and could evolve to colors that aren't for camouflage or scaring away.

Explanation:

3 0
3 years ago
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You are at a restaurant where they offer both grass-fed and grain-fed beef, and are trying to decide which is the most sustainab
atroni [7]

Answer:

Grass-fed beef is the most sustainable choice. Grass-fed beef represents a net gain for the human food supply because cows eat grasses that we can’t eat (from land that is typically unsuitable for human crops) and turn it into beef that we can eat.

Explanation:

Cattle raised on a primarily foraged diet are termed grass-fed or pasture-raised; for example meat or milk may be called grass-fed beef or pasture-raised dairy. The term "pasture-raised" can lead to confusion with the term "free range", which does not describe exactly what the animals eat.

That said, grass-fed cows eat (mostly) grass, while grain-fed cows eat (mostly) an unnatural diet based on corn and soy during the latter part of their lives. To maximize growth, the cows are often given drugs, such as antibiotics and growth hormones.

8 0
3 years ago
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