What is natural selection?
a process that selects variations that with survival and that spreads the variations to more offspring
a process through which nature selects an individual within a population for extinction
a process that causes all populations to gradually increase in size
a process that causes random variations to appear in the offspring of every generation

The correct answer is a process that selects variations that help with survival and that spreads the variations to more offspring.

Explanation:

Natural selection is a phenomenon proposed by Charles Darwin 140 years ago. From its definition the theory of evolution is born.

This process occurs between entities with variation, inheritance and multiplication and the different evolutionary formations that give way to new species through survival and reproduction.

In summary, natural selection is the process of formation of living beings so that they can survive and develop.

the answer is: trichonympha lives in the gut of termites and digests cellulose eaten by the termite.

this is an example of a symbiotic association of a protozoan with its mode of association.

hope i

-lavira: )

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.