The answer is pilus. This structure joins two bacteria of same species and allow exchange of genetic material in a process called horizontal gene transfer (conjugation). The plasmid of one of the bacteria (the mobile plasmid) is nicked once and the strand moves through the pillus to the other bacteria. It combines with the other plasmid or chromosome to for recombinant dna.
Activation energy ........
Answer: strip mining
Strip mining is the process of removing the soil and rock above a surface. This process is followed by the removal of the exposed mineral too. Some techniques in strip mining are also called as the area mining or the contour mining.
Answer: Representative of his cognitive development.
The preschool period refers to the years the age between 3 and 5 years considered as the preschool period. In this period Physical development occurs at slower pace than cognitive and psychosocial development. The maturation of brain of preschoolers continues. They demonstrate their ability to think more complexly by classifying objects by questioning. Children become aware of cause-and-effect relationships.
Answer:
The comparatively fast evolution of various species from a single common ancestor is known as adaptive radiation. It usually takes place when an organism enters a novel region and distinct traits influence its survival. The island chain offers suitable conditions for adaptive radiation to take place as when an organism of a certain species comes to an island together and get disperse all through the chain, and each of these organisms getting settle into distinct niches and exploiting various food resources in order to minimize the competition, thus, resulting into adaptive radiation.
