Explanation:
Common to genetic drift, the founder principle, and the bottleneck effect:
b. in small populations and result in a decrease in genetic diversity and/or an increase in the occurrence of specific genetic traits
c. when a small group of organisms only reproduce with each other to create a larger population of organisms
d. when the majority of a population is killed off and there are only a few remaining organisms left to rebuild the population
Further Explanation:
During the process of cell division, spontaneous changes within the genome can arise, called mutations. These are errors occur when copies of the DNA within the cell are made; mutations may range from small changes called single nucleotide polymorphisms, to large scale deletions, and additions which span multiple genes.
These mutations form variants which become stable within a population, leading to the formation of separate, genetically distinct populations called species.
- mutations accumulate in a population over time, altering the frequency of alleles or different forms of a gene- this is called genetic drift.
- In the founder effect, the separation of a group from a larger group can decrease genetic diversity, this can create a genetically distinct population
- In the bottleneck effect, a population die off or barrier to reproduction increases the genetic drift in the population
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You would expect an earthworm to have no exoskeleton because as you see it is very flexible and soft. Organisms with such have body parts that are divided and an earthworm do not have any visible parts on them also having an exoskeleton would not allow an organism to move like an earthworm does.
Underneath the right side of the liver, the gallbladder is a pear-shaped organ.
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What is the function of gall bladder?</h3>
Its primary function is to gather and concentrate bile, a digestive fluid made by the liver. The gallbladder is where bile is kept after the liver produces it. The gallbladder receives a signal from the stomach when you eat. Bile is released from the gallbladder when it contracts, and it travels through the gut via the major common duct. Bile combines with the food there and aids in digestion.
When the gallbladder is removed from a healthy person, there are rarely any obvious health or digestive issues, though there is a slight chance of diarrhea and fat malabsorption.
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Answer:
Flow of Energy can be explained by means of two models namely: single channel energy model and Y-shaped energy model.
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Body cells are those that are responsible for the formation of tissues and organs, while a gamete is that cell responsible for reproduction.
- Gametes are sex cells, when a male gamete joins a female gamete in the framework of sexual reproduction of plants and animals, a zygote is formed.
- Body cells are any cell in the body that are not gametes, which originate from embryonic stem cells and constitute the totality of the body's tissues and organs of multicellular organisms.
Therefore, we can conclude that body cells are those cells responsible for the growth of organs and tissues and gametes are each of the sex cells that fuse during fertilization.
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