Which of the following growth curves shows a population that is at its carrying capacity?
B
C
A
D
The Correct Answer is A
A population is said to be at its carrying capacity when it has reached the maximum number of individuals that can be sustained in a particular environment over a prolonged period of time, given the available resources and the prevailing environmental conditions.
In other words, carrying capacity refers to the maximum population size that a given ecosystem can support without being depleted of resources or experiencing environmental degradation. Once a population reaches its carrying capacity, its growth rate slows down and stabilizes, as individuals start to compete more intensely for resources such as food, water, and shelter, and mortality rates increase.
Carrying capacity is an important concept in ecology and population biology because it helps to explain the dynamics of natural populations and how they are influenced by changes in the environment, such as climate change, habitat loss, and human activities.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The apocrine gland is a component of the integumentary system that secretes pheromones. Pheromones are chemical signals that are released by an individual and can affect the behavior or physiology of other individuals of the same species. The other options are not components of the integumentary system that secrete pheromones. The fossa ovalis is a depression in the interatrial septum of the heart, the seminiferous tubule is a structure in the testes where sperm are produced, and the dermal papilla is a structure at the base of a hair follicle that provides nutrients to the hair.
Correct Answer is C
Explanation
The data in the table does not support any of the conclusions a, b or d. The only conclusion that can be drawn from the data is c. The time of fall is independent of the mass of the object. This is because objects 1 and 2 have the same mass but different times of fall, while objects 3 and 4 have different masses but also different times of fall.
A. Objects A and B are not mentioned in the table, so this conclusion cannot be drawn from the data.
B. The data does not support the conclusion that the greater the mass of an object, the faster it will fall. In fact, object 3 has a greater mass than object 2 but falls in less time.
C. Air resistance is not mentioned in the table, so this conclusion cannot be drawn from the data.
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