The effects of a mutation are different depending on the type of cell that is affected.
* If a mutation occurs in a somatic cell (all cells except the reproductive cells), this can trigger the development of a cancer (colorectal cancer, retinoblastoma...).
* If a germ cell (reproductive, giving gametes) is affected, the person will not be affected but his descendants will be affected. (this gives genetic, hereditary disease, like sickle cell anemia, haemophilia...).
Answer:
<em>The correct option is B) Competition for resources increased, which increased the death rate.</em>
Explanation:
The maximum number of organisms of a species that a place can hold is termed as the carrying capacity of that place. When the number of organisms in a community increases beyond the carrying capacity, the resources t support these organisms become lesser as compared to the organism number. As a result, competition begins between the organisms to for these resources. Most of the organisms die due to lack of resources, others might migrate and hence the population begins to decline.
The answer would be synaptic pruning.
The brain in children will have a much more synaptic connection than adults. This connection is important for learning process in the early stage of life. More synaptic connections allow multiple parts the brain areas to be connected even if there is a damage in one area.
The synapse will be cut down later in a process called synaptic pruning. Only the area that frequently used will be preserved.
3:00 -7:00 PM
This is the span of the time wherein most commuters travel and industrial factories produce emissions.