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goldfiish [28.3K]
3 years ago
10

Evolution is a long and arduous process that has created humans with many different traits. Can you think of some genetic mutati

ons that have manifested as diseases and others as beneficial traits?
Biology
1 answer:
ehidna [41]3 years ago
8 0

Answer:

discovery in 2008 where researchers found the ACTN3 gene known as the super sprinter gene that controls fast twitch muscle fibers in sprinters. this gene is apparent in a lot of sprinters, and we know it is a mutation because about 18% of people today actually have 2 defective ones, thus not having the ACTN3 gene at all.

There's this other famous one where this gene low-density lipoprotein receptor-related protein 5, or LRP5 causes extra bone density. usually when LRP5 is inhibited or impaired, this causes osteoporosis, but when it is mutated a different way, it can cause increased bone density. a bunch of generations of a family had never broken a bone in their life because of this. cool stuff.

There's also this trait originating from Africa that people with the sickle cell anemia, no matter if it is active or not, have some resistance towards malaria, good mutataion.

Explanation:

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A main sequance star maintains a stable size as long as there is enough hydrogen to fuse into helium
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As you did not state what the question is you just wrote a statement, I am guessing this is a True or False question. If there is more to the question please comment and Id be happy to help you answer more but if this is T/F then Ill answer it here right now.


A main-sequence star maintains a stable size as long as there is enough hydrogen to fuse into helium. True or False?

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Resources from the ocean are found i many regions, but the majority of all resources are located in which of the following regions? continental shelf.

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What does a pyramid of biomass represent? A. Range of food webs found in one trophic level B. Percentage of energy that's passed
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The pyramid of biomass represents a range of food webs found in one trophic level

A pyramid of biomass refers to graphical representation of biomass that is present per unit area of all the various trophic levels of the ecosystem.

<h2>Further Explanation</h2>

The graphical representation shows the relationship between biomass and trophic level that quantify the biomass that is present in each trophic level of energy community at a given period of time.

There are two types of pyramid of biomass, they include

  • Inverted pyramid of biomass  
  • The upright pyramid of biomass  

Inverted pyramid of biomass: a very good example of inverted pyramid can be seen in a case of pond ecosystem, where major producers in the ecosystem (mass of phytoplankton) will be lower than the mass of heterotrophs, such as insects.  

The upright pyramid: The first thing on the upright pyramid is the producers, such as plants. The plants are present at the bottom level of the pyramid and followed by consumers.

Within the pyramid, the highest level is occupied by the carnivores; they are the lowest quantified amount of biomass. In upright pyramid the total weight of the producers is far more than when the weights of all the consumers are combined.  

However, the main issues with the pyramid of biomass are that every trophic level of the pyramid seems to have more energy than it does.

LEARN MORE:

  • pyramid of biomass brainly.com/question/12655542

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  • pyramid of biomass
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