The answer is the following one: "<span>They allow for automatic biogeographic isolation." - islands </span>allow for isolation and thus emergence of new species or variation in species.
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Answer:
Meat for food and small size for pets
Explanation:
Artificial selection is the process by which humans control desirable phenotypic characteristics in plants and animals by applying selective breeding techniques to perpetuate these traits in the population. A example of artificial selection includes the process of domestication of modern pigs (<em>Sus domesticus</em>). It has been shown that the modern pigs derived from the wild boar (<em>Sus scrofa</em>), which were domesticated separately 9,000 years ago in China and Western Asia. For example, by artificial selection, humans have domesticated moderns pigs to use them as livestock for direct consumption (i.e., for their meat). Moreover, there are pig populations that have been artificially selected as pets (e.g., miniature Vietnamese Pot-Bellied pigs).
Answer:
The correct answer is option 3. "Ab and aB".
Explanation:
Crossing over of two chromosomes, or chromosomal crossover, is the exchange of genetic material between two homologous chromosomes. This genetic process is responsible for the genetic variations that occurs during sexual reproduction. Usually crossing over occurrs between matching genetic sequences, therefore a diploid invidual with an AB allele that crosses over with an invidual with ab allele will exchange each allele in equal parts. The resulting chromosomes will be Ab and aB, one part per allele.
Due to the high surface tension, the lungs remain crushed and you will not be able to breathe first.
During fertilization, the sperm and egg combine in one of the fallopian tubes to form a zygote. The zygote then descends the fallopian tube into a morula. Upon reaching the uterus, the morula becomes a blastocyst. The blastocyst then burrows into the inner wall of the uterus. This is a process called implantation.
The prenatal development process occurs in three major stages. The first two weeks after conception are called the germination period, the third to eighth weeks are called the fetal period, and the period from the ninth week to birth is called the fetal period.
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Answer:
Cultural influence
Explanation:
Gender roles are the behavior, duties, roles and values that is considered appropriate for a either a male or female member of a community.
Gender roles vary from one community to another and it is influenced greatly by culture.
For instance, children in agricultural societies socialize into more distinct gender roles because of their cultural set up. Where you may find women have a specific role that do not do and vice versa.
In nomadic societies, because of their culture. Gender roles are less distinct.