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klasskru [66]
2 years ago
13

Elephant seals are abundant in their population size but they have low genetic diversity within their species due to overhunting

by humans in 1890s. Why might the survival of this species be threatened in the future?
Biology
1 answer:
Anastasy [175]2 years ago
8 0
<h2>Genetic diversity </h2>

Explanation:

If the environment changes, the species runs the risk of not having the genetic diversity to be adaptable to that change and could go extinct

  • Genetic diversity is the diversity  or genetic variability within species
  • The huge variety of different gene sets defines an individual or a whole population's ability to tolerate stress from any given environmental factor
  • While some individuals might be able to tolerate an increased load of pollutants in their environment, others carrying different genes might suffer from infertility or even die under the exact same environmental conditions;the former will continue to live in the environment the latter will either have to leave it or die
  • Any change in the environment - natural or human induced causes a selection of events that only the fittest survive
  • In case of elephant seals,overhunting reduces the sum of genes available,thus leaving behind a population that is less capable of tolerating any further natural or human disturbances in environment
  • The loss of genetic diversity within a species can result in the loss of useful and desirable traits  
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List at least two possible reasons for the differences you see between the pinch strength of the first two fingers and the secon
andriy [413]

Answer:

The first two fingers may be stronger due to the fact that they are used the most often and could build up more strength and dexterity. Another reason the first two fingers may be stronger could be due to the fact that the ulnar muscle that controls digits 4 and 5 is smaller than the radial muscle.

Explanation:

Pinch strength is a widely used measurement of hand function. A direct relationship between pinch strength and function has been demonstrated and illustrates the importance of hand strength in clinical practice.There is a difference in grip strength in the dominant and non-dominant hands.Dominant hand  is significantly stronger. According to the pinch strength data, he index finger and the thumb are the strongest, the middle finger and the thumb are the second strongest, the ring finger and the thumb are the third strongest, and the little finger and the thumb are last. The difference is the largest between the middle finger and the thumb and the ring finger and the thumb.

The first two fingers may be stronger due to the fact that they are used the most often and could build up more strength and dexterity. Another reason the first two fingers may be stronger could be due to the fact that the ulnar muscle that controls digits 4 and 5 is smaller than the radial muscle.

Difference in the pinch strength may be due to one possible reason that the radial muscle is larger than the ulnar muscle which controls digits 4 and 5. Another reason could be that you generally use the thumb, index, and middle fingers more than the ring and little finger, therefore the first three fingers have more strength and muscle memory.

8 0
3 years ago
In what way is ecology part of environmental science
Masja [62]
Ecology is environmental science. 
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6 0
3 years ago
Luke poles of magnets attract each other true or false ​
Gelneren [198K]

Answer:

yes, like poles can attract each other

Explanation:

this is when a magnet is one side north and the other south. They dont attract and repel when it it (north,north) and (south, south)

6 0
3 years ago
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Setler79 [48]

Answer:

Lobsters are adapting to cooler temperatures.

Explanation:

Adaptation may be defined as the phenomena that involves the physical, physiological and chemical changes in the organisms that helps to adapt themselves in their environmental condition.

The adaptation may bring genetic changes in the next generation as well. The lobsters movement per year demonstrates that they are trying to adapt in their environment. The cooler temperatures is favorable for the growth and adaptation of Lobsters.

Thus, the answer is Lobsters are adapting to cooler temperatures.

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BlackZzzverrR [31]

Answer:

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7 0
3 years ago
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