Question

1. what are the main differences between natural selection and selective breeding? 10. can selective breeding go too far?

Explanation:

Question 9

Natural selection is a natural process where organisms better adapted to their environment survive and reproduce more offspring. Selective breeding is a human - controlled process where humans choose which organisms will breed based on desired traits. For example, in natural selection, a giraffe with a longer neck (due to random genetic variation) might survive better in an environment with tall trees (as it can reach more leaves) and pass on its genes. In selective breeding, humans might breed cows (like the ones in the diagram) to get traits like higher milk production (e.g., Holstein) or better meat quality (e.g., Angus).

Question 10

Yes, selective breeding can go too far. Over - breeding for a particular trait can lead to a reduction in genetic diversity. This can make the bred organisms more susceptible to diseases (since there are fewer genetic variations that might confer disease resistance). For example, some dog breeds (not in the given cow - based diagram but a common example) that have been selectively bred for extreme physical traits (like very short snouts in some brachycephalic breeds) often have health problems such as breathing difficulties.

Answer:

Question 9

Natural selection is a natural, environment - driven process for survival and reproduction. Selective breeding is human - controlled, based on desired traits.

Question 10

Yes.