Yes but laws cant like the law of gravity
The answer is: d. comparable in size to the heterosexual females
Simon LeVay is a neuroscientist that studies the relation of brain structure and sexual orientation. He examines the interstitial nucleus of anterior hypothalamic cells. The size of the nucleus in homosexual is found to be similar to women while the heterosexual male is much larger. The result doesn't enough to say that sexual orientation is genetic. This proves that there is the dimorphic nucleus in different sexual orientation.
Decomposers are living organisms that breaks down other living and non-living things into smaller parts.
Decomposers can recycle dead plants and animals into chemical nutrients such as carbon and nitrogen that are released back into the soil, air and water as food for living plants and animals.
Directional selection increases the frequency of individuals expressing one of the extreme phenotypic traits in a population. At some time in history, directional selection led to the Warbler-finches evolution.
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What is Directional Selection?</h3>
Directional selection is one of the different types of natural selection.
It increases in the proportion of individuals with an extreme phenotypic trait.
It causes a decrease in the number of individuals expressing intermediate phenotype, and the other extreme phenotype.
This selection presents more frequently in those cases in which interactions between living organisms and the environment modify in the same direction.
In the exposed example,
- All finches vary from 10 to 20 cm, but Warbler-finches is closer to 10 cm (one of the phenotypic extremes).
- All finches vary from 8 to 38 g, but Warbler-finches is closer to 8g (one of the phenotypic extremes).
So, from the whole range, Warbler-finches only express one of the extreme traits, meaning that the species has suffered from the directional selection.
These traits probably increased the animals' fitness, and hence, they were favored by natural selection.
You will learn more about directional selection at
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