Answer:
B. Theory
Explanation:
A theory can be changed as new information is discovered.
Answer:
It means that they keep each others' population regulated.
Explanation:
Without one or the other, ones' population would sky rocket and there would be too many in an unhealthy manner, or the other wouldn't be able to survive and their numbers would drop low.
A deficiency of dopamine is responsible for the signs and symptoms of Parkinson's disease.
Parkinson's disease is characterized by gradual degeneration of neurons in a section of the brain. In normal conditions, these neurons release a chemical substance known as dopamine which is important for the brain.
Dopamine is a neurotransmitter which facilitates communication amongst different parts of the brain that is responsible for smooth muscle activity and proper nerve operation.
Parkinson’s disease is a disorder generally associated with uncontrollable movements like tremors, rigidity as well as problems linked with maintaining body balance and coordination. Symptoms generally develop slowly and intensify over the period.
People may experience trouble in walking and talking with the advancement of the disease. The patients may also exhibit mental as well as behavioral alterations, sleep trouble, depression, memory problems and lethargy.
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Answer:
C - It allows the cell to absorb more water.
Explanation:
Specialized cells often have unique structures that allow them to carry out a function. For example, a root hair increases the surface area of a root epidermal cell, allowing the cell to absorb more water.