There are several ways selection can affect population variation:
stabilizing selection
directional selection
diversifying selection
frequency-dependent selection
sexual selection
As natural selection influences the allele frequencies in a population, individuals can either become more or less genetically similar and the phenotypes displayed can become more similar or more disparate. In the end, natural selection cannot produce perfect organisms from scratch, it can only generate populations that are better adapted to survive and successfully reproduce in their environments through the aforementioned selections.
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Adaption is a trait that helps an organism survive and reproduce
Mutagen is an agent that causes DNA mutations. UVA radiation penetrates deep into the skin and acts as a mutagen. UV light is the most common source of radiation that affects DNA, but it is a weak radiation and it penetrates only the surface cells of your skin.
Answer:
Dam
Explanation:
A dam is built to control water through placement of a blockage of earth, rock and/or concrete across a stream or river
Answer:
The addition of new bone tissue is termed as bone remodeling. In the process of bone remodeling, the tissues of the bone are withdrawn or resorbed from the skeleton and the formation of new bone tissue takes place also known as ossification. The mentioned procedures also monitor the shape of the bones after the incidents like fractures.
In the process of bone remodeling, two types of cells play an essential part, that is, osteoblast that generates new bone and osteoclasts that dissociates a bone. In the process of bone remodeling, the resorption of the bone takes place by osteoclasts, which is succeeded by bone deposition by osteoblasts. In combination, the cells, which are accountable for bone remodeling are called BMU or basic metacellular unit.
