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.
If two populations of birds stop interbreeding because of a difference in song patterns this would be described as behavioral isolation.
Ecosystem services are the benefits to people from nature. These benefits include food, water purification, carbon sequestration, soil stabilization, recreation, cultural values, among others.
The world's ecosystems are necessary capital assets due to the ecosystem services and the biodiversity they provide.
A. External sex organs form
