The human population's life expectancy has increased significantly but seems to have an upper limit. Which of the following might be described as an ecological consequence of passing that upper limit by regulating cell death?
A) an increase in the relative frequency of deaths from cancer
B) an increased need for gerontologists and other professionals to care for the elderly
C) an increase in the total population of humans on the planet
D) a decrease in the ratio of younger to older members of the population
E) a decrease in the birth rate
Primates exhibit prolonged life histories, spending more time in each stage of life than most other
Major cell types in the human body.
Remaining health-adjusted life expectancy (years) at age 25
Human Viruses Associated with Cancers Virus
Structure of the human adrenal gland
Distribution of Fluids in a Human Body