Which of the following is an extrinsic factor that prevents organisms from matin

Question

Which of the following is an extrinsic factor that prevents organisms from mating? Temporal isolation Behavioral isolation Mechanical isolation Ecological isolation Geographical isolation QUESTION 40 In terms of ecology, what is the best definition of carrying capacity? The total number of species living within a specific area. The fewest number of individuals in a population before inbreeding begins to occur. The total number of children that each female in a population will have in their lifetime. The maximum number of individuals of a population that can be sustained by their habitat. The number of individuals a population must be reduced to before it is given the status of endangered". QUESTION 41 Which of the following is a true statement? Scientists believe that humans are more closely related to pigs than yeast because yeast do not have the enzyme cytochrome c oxidase while humans and pigs both do. Scientists believe that humans are more closely related to insects than fish because humans and insects live on land and breathe air while fish do not. Scientists believe that humans are more closely related to insects than fish because humans and insects have legs while fish do not. All of the above are true. None of the above is true QUESTION 42 What is the difference between microevolution and macroevolution? Microevolution occurs in microscopic organisms whereas macroevolution occurs in large organisms. Macroevolution occurs due to natural selection, whereas microevolution is not. Microevolution occurs at the genetic level whereas macroevolution is what is visible with the naked eye. Microevolution occurs over relatively short amounts of time whereas macroevolution occurs over relatively longer periods of time Microevolution is simply a series of many macroevolutions.

Explanation / Answer

Ans 39:- Geographical isolation. It is a type of isolation in which the organisms are not able to mate as they are isolated on different far off locations (as on some island).

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