Answer:
The pericardium is the most outer layer of the heart. Main function to protect the heart from external forces/entry.
Answer:
First, rain will have to occur. The lake and surfaces will have water in them, after that it will a while for the surface to evaporate into water vapour, after that the water vapour will condense into water droplets and when the clouds are too heavy because of too much water droplets in them, it will start to rain again and this cycle will keep going on continuously.
Answer:
<u><em>The correct option is C) genetic variation</em></u>
Explanation:
Genetic variation can be described as the differences present in the genetic material i.e DNA of organisms present in a population. Genetic diversity allows organisms of a species to better adapt to an environment. A population in which the genetic variability is scarce might become wiped out by a disease or an invading predator.
As the birds show different variations hence the term that best described them is genetic variation.
I think the answers are A, B, and C.
An age-related change in the nervous system that can adversely affect nutritional status is decreased taste perception, hearing loss and vision loss. Aging refers to a multidimensional process in humans, the process of physical, and psychological, and social changes. As a population, older adults are more prone to age-related diseases, functional impairment, and physical inability that nay interfere with the maintenance of a good nutritional status.