Answer:
If a mutation gives the bacterium an advantage in a particular environment, this bacterium will grow better than its neighbors and can increase in numbers – it is selected for.
Explanation:
Cone-bearing plants have two types of cones: female cones and male cones. ... A pollen tube then grows from the pollen grain toward the female ovule. Sperm cells move through the pollen tube and one of them fertilizes an egg cell, which then develops into a seed.
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The most appropriate answer is 3 !! and that infection is leukemia, a type of cancer , in which WBC increases !!
Tundra soils are generally frozen and are categorized as Gelisols. And in order to be a Gelisol, permafrost must be within 100cm of the soil surface.