Concerning the balance of pollutants in the biosphere, Scientists have proved that the natural system of the earth is overwhelmed by pollution.
The similarities in the fore limb bones of humans,cats,dolphins and bats leads to the conclusion that they all evolved from a common ancestor.
The answer is the second choice: variation, overpopulation, adaptation
Answer: The correct options are statement first and fourth that is -
It is synthesized toward the replication fork and it is synthesized in the 5′ to 3′ direction.
Leading strand in DNA is the strand of new DNA being synthesized in the same direction where the replication fork is moving. The movement of replication fork allows the access of template for the new DNA.
The DNA synthesis is continuous in the leading strand. It is synthesized in the 5' to 3' as DNA synthesis always takes place in this direction. This is because dNTP ( deoxyribonucleoside triphosphate) provides free 3' OH group where new dNTP can be added by the enzyme DNA polymerase.
Because the small area of that desert provides the provisions the organism needs. They adapt to their climate, so as long as the desert keeps its supply, the organism will stay