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const2013 [10]
3 years ago
9

What inherent characteristics of populations did both Darwin and Wallace propose were need for natural selection to lead to adap

tation?
Biology
2 answers:
Elena L [17]3 years ago
7 0

Answer:

An individual cannot develop traits that make them adapted to a distinct environment. The manner by which a population becomes more adjustable with an environment is when the individuals within the population exhibit traits, which are favorable to the specific environment. This, in turn, offers them a higher rate of survival.  

Some of the inherent features of a population, which both Wallace and Darwin proposed as the need for natural selection that eventually results in adaptation are:  

1. The population needs to exhibit variability within the traits.  

2. Organisms generally over-reproduce leading to competition for resources between the offspring.  

3. Some of the individuals in a population are more successful at reproduction.  

tigry1 [53]3 years ago
6 0

Answer:

Darwin and Wallace both the naturalist known for the theory of natural selection. These naturalist have proposed various inherent characteristics that are essential for natural selection process to result in the change or adaption according the atmosphere.

The inherent characteristic is that the population must have variability as trait, increasing the competition by over reproduction and in a population some individuals are successful at reproduction.

Thus, the correct answer is mention above.

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Natural killer cells destroy target cells or pathogens by ingestion and destruction of particulate matter in a process called ph
podryga [215]

Answer:

<h2>False</h2>

Explanation:

Natural killer cells (NK cells) are a type of lymphocyte and also a component of innate immune system. NK cells play various functions in immune system and they play a major role in the host-rejection in virally infected cells.

NK cells are activated in response to interferons  and also by various other responses. NK cells work to by secreting IFNγ and TNFα. Natural killer cells play a very important role in early host defense against viruses.

4 0
3 years ago
Suppose that at a given point along a capillary, the following forces exist: Capillary hydrostatic pressure (HPc) = 30 mmHg Inte
Ainat [17]

Answer:

Suppose that at a given point along a capillary, the following forces exist: Capillary hydrostatic pressure (HPc) = 30 mmHg Interstitial fluid hydrostatic pressure (HPif) = 0 mmHg Capillary colloid osmotic pressure (OPc) = 25 mmHg Interstitial fluid colloid osmotic pressure (OPif) = 2 mmHg. The net filtration pressure at this point in the capillary is <u>7mmHg.</u>

Explanation:

  • Data:

Capillary hydrostatic pressure (HPc) = 30 mmHg

Interstitial fluid hydrostatic pressure (HPif) = 0 mmHg

Capillary colloid osmotic pressure (OPc) = 25 mmHg

Interstitial fluid colloid osmotic pressure (OPif) = 2 mmHg

  • Formula Applied :

Net filtration pressure= hydrostatic pressure gradient -  Oncotic pressure gradient

Hydrostatic pressure gradient = Capillary hydrostatic pressure - Interstitial hydrostatic pressure = 30mmHg - 0 mmHg = 30 mmHg

Oncotic pressure gradient =  Capillary colloid osmotic pressure - Interstitial fluid colloid osmotic pressure =25  - 2 = 23 mmHg

Net filtration pressure= hydrostatic pressure gradient -  Oncotic pressure gradient = 30 mmHg - 23 mmHg = 7 mmHg.

Hence, The net filtration pressure at this point in the capillary is <u>7mmHg.</u>

3 0
3 years ago
Which of the following is NOT true about the digestive system of annelids?
lapo4ka [179]
Yes I think you are right. It does not contain setae for food to travel to the anus. But it's something else that develops the food into poop and travels through anus

Hope this helps :)
5 0
4 years ago
Which of the following is not a reason why China instituted a one-child policy?
stealth61 [152]

Answer:

children unable to receive an education so fron that not wise citizens

3 0
2 years ago
What is the role of RNA polymerase?
juin [17]
<span> RNA polymerase is commonly know as DNA-dependent RNA polymerase. It catalyzes the transcription of DNA to synthesize precursors of mRNA and most snRNA and microRNA. It is found in the core of eukaryotic cells. One of which combined rRNA in the nucleolus while the rest of the chemical blends other RNA in the nucleoplasm, some portion of the core yet outside the nucleolus.</span>
6 0
3 years ago
Read 2 more answers
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