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dolphi86 [110]
3 years ago
12

What caused some family lines of Siamese cats to change their appearance from the classic to the modern shape?

Biology
2 answers:
sveta [45]3 years ago
8 0

Answer:

D. artificial selection

Explanation:

I did it and got it right .

AlexFokin [52]3 years ago
3 0

Answer:

A. an increase in genetic diversity

Explanation:

Genetic diversity is the degree of gene variety within a single species (animal or plant). It corresponds to the total number of genetic characteristics in the genetic composition of species or subspecies. Genetic diversity is one of the main aspects of our planet's biodiversity, such as populations and ecosystems.

In the case of Siamese cats, genetic diversity has caused some lineages to change their appearance from classic to modern. This occurred by crossing Siamese cats with cats of other breeds, creating a wide genetic variety that resulted in the change in appearance of these cats.

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During labor, it is very important for the mother to keep breathing. If she holds her breath, it will put pressure on the vena cava and lead to a reduction in the blood return. The head is kept elevated and the back is rounded which aids the abdominal muscles to help the uterus to push the baby out. Grasping the knees also helps in pushing and encouraging the movement of the infant outside the body.

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Answer:

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