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8 molecules would result, since 2^3 = 8. Each time PCR is performed, the orginal number of molcules double.
Animals have to adapt to the food that live there plus if there is a body of water fish and organisms that live in that water have to adapt to the type of fish in that water.
The second question has the answer of A
Answer: There are certain physical and internal aspects of living organism that is used for the classification of animals.
Explanation: The characteristics that define an organism to be classified as animal are:-
- Segmentation that defines the segments on the bodies of the animals which are of different kind
- Whether the animal is in the category of chordata or non-chordata
- Presence of embryo stage and number of tissue layers that are getting formed while the organism is developing
- There are most chances of sexual reproduction.
