Two opposite forces operate in the growth and development of every population. One of them is related to the ability to reproduce at a given rate. The force opposite to it is called:
Correct answer: B. Environmental Resistances
- A. Fecundity
- B. Environmental Resistances
- C. Biotic Control
- D. Mortality
Explanation
The correct answer is Environmental Resistances. These are the factors that limit the growth of a population, including both biotic factors like predators and abiotic factors like limited resources, which collectively act as a counterbalance to reproduction. Fecundity is related to the potential for reproduction, not a limiting force. Biotic Control includes only the biological factors and not the full scope of environmental resistances. Mortality is only one aspect of population decline and does not encompass the full range of environmental limitations.
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About Reproduction
Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
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