Carrying Capacity

Q. Carrying capacity(K) is defined as

1. the maximum number of organisms that an environment can sustain indefnitely given the resources.
2. number of organisms in a given time.
3. the number of organisms in a given habitat.
4. the maximum number of organisms that can support in a given time and limited resources.

Q. In a population, unrestricted reproductive capacity is called as:

1. Biotic potential
2. Fertility
3. Carrying capacity
4. Birth rate

Q.

The carrying capacity of a population is determined by its

1. population growth rate

2. natality

3. mortality

4. limiting resources

Q. What is carrying capacity?

1. Maximum number of individual of a population that a location can accommodate
2. None of these
3. Maximum number of species a location can accommodate
4. Maximum amount of weight an animal can carry

Q. A logistic growth curve depicting a population that is limited by a definite carrying capacity is shaped like the letter

1. S
2. L
3. M
4. J

Q. Once the population size reaches the carrying capacity, an equilibrium is attained. In this state of equilibrium, the resources in the habitat will replenish at a rate necessary to sustain the population.

1. True
2. False

Q.

The human population follows

1. Z-shaped growth curve

2. S-shaped growth curve

3. J-shaped growth curve

4. All of the above

Q.

Negation of the proposition: If we control population growth, we prosper

1. If we do not control population growth, we prosper

2. If we control population growth, we do not prosper

3. We control population but we do not prosper

4. We do not control population, but we prosper

Q. Select the examples related to natural selection from those given below.

1. Pinna reduced in man
2. Industrial melanism
3. Drug resistance in bacteria
4. Snakes without limbs
5. Sickle cell anemia and malaria

1. 1 and 5 only
2. 2, 3 and 4
3. 2, 3 and 5
4. 5 and 3 only

Q. What is carrying capacity?

1. Maximum number of species a location can accommodate
2. Maximum number of individual of a population that a location can accommodate
3. Maximum amount of weight an animal can carry
4. None of these

Q. Assume that you have been studying a population of cattails at the edge of a pond. After 10 years of observations, you notice that the population has remained steady. What is the most likely explanation?

1. The carrying capacity of pond has been reached.
2. Nutrients levels in pond are fluctuating.
3. The birth rate and death rate are both increasing at the same rate.
4. The pond is drying up.

Q. Describe briefly any two reasons for the rapid increase in the human population in recent times

Q.

A few rabbits are introduced in an un-inhabited island with plenty of food. If these rabbits breed in the absence of any disease, natural calamity and predation, which one of the following graphs best represents their population growth?

1. 

2. 

3. 

4. 

Q. When the population reaches carrying capacity, which of the following equation can be related to it?

1. None of the above
2. Mortality Rate=Birth Rate
3. Mortality Rate > Birth Rate
4. Mortality Rate < Birth Rate

Q. Which of the following exhibits the correct relation between carrying capacity (K) and growth?

1. When K becomes zero, the growth rate becomes zero
2. When the population reaches K value, the dN/dt becomes zero
3. None of these
4. When K value is always equal to the ideal growth rate value

Q. How one can distinguish living out of non living (without considering defining and non defining feature of life)????

Q. The population size that an environment can sustain is called the

1. Maximum population
2. Habitat
3. Exponential limit
4. Logistic goal
5. Carrying capacity

Q. The number of people that can be supported by the environmental resources without the degradation of environment is known as

1. Carrying capacity
2. Population density
3. Limiting factor
4. $r$-selection
5. $K$-selection

Q.

When does population reach its carrying capacity?

1. Mortality rate = Birth rate

2. Mortality rate > Birth rate

3. Mortality rate < Birth rate

4. None of the above

Q. "Verhulst-Pearl" logistic growth is described using the equation $\frac{dN}{dt}=rN\left(\frac{K-N}{K}\right)$. In this K stands for

1. Temperature in degree Kelvin
2. Intrinsic rate of natural increase
3. Carrying capacity
4. Population density

Q. Assertion :With increase in population size, environmental resistance tends to increase.
Reason: This is a nature's way to check the expression of biotic potential.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Carrying capacity is determined by

1. Limiting resources
2. Mortality rate
3. Predation
4. Natality rate

Q. Which is correctly labelled

1. B-logistic curve
2. C-carrying capacity
3. C-exponential curve
4. A-carrying capacity

Q. Once the population size reaches the carrying capacity, an equilibrium is attained. In this state of equilibrium, the resources in the habitat will replenish at a rate necessary to sustain the population.

1. True
2. False

Q. Carrying capacity for a population is estimated at 500 the population size is currently 400 and max=0.01. What is dN/dt?

1. 0.01
2. 0.8
3. 8
4. 50

Q. Carrying capacity is..

1. none of these.
2. minimum number of individuals which an environment can sustain
3. maximum number of individuals which an environment can sustain
4. both (a) and (b)

Q. The carrying capacity of a population is determined by its

1. Death rate
2. Reproductive status
3. Birth rate
4. Limiting resource

Q.

When does population reach its carrying capacity?

1. Mortality rate = Birth rate

2. Mortality rate > Birth rate

3. Mortality rate < Birth rate

4. None of the above

Q. Only variations that confer an advantage to an individual will survive in a population. Do you agree with this statement ? Why or why not ?

Q. If in a population showing sigmoid growth curve the value of K - N/K is 0.95, then what is true for this population.

1. The carrying capacity has been nearly realized.
2. The carrying capacity has not been substantially realized and it can accommodate many more organisms.
3. The carrying capacity is only 50% realized.
4. Data is insufficient to comment anything.