Environmental System Analysis-Models of Population Growth and Interactions [NTA-NET (UGC-NET) Environmental Science (89)]: Questions 1 - 4 of 6

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Question 1

Appeared in Year: 2016

Question MCQ▾

Lotka-Volterra model for an ecosystem can be used to study (July)

I. oscillations in prey-predator population.

II. Effect of predator on prey population.

III. Effect of prey on predator population.

Choose the correct answer:

Choices

Choice (4)Response

a.

II and III only

b.

I, II and III

c.

I and II only

d.

I and III only

Edit

Question 2

Appeared in Year: 2016

Question MCQ▾

In Leslie matrix model, the dynamics of a population explains (September)

(a) growth of the population

(b) decreasing trend in the population

(c) stable condition

Choose the correct code:

Choices

Choice (4)Response

a.

(a) and (c) only

b.

(a) and (b) only

c.

(a) , (b) and (c)

d.

(b) and (c) only

Edit

Question 3

Appeared in Year: 2015

Question MCQ▾

Choose the correct sequence of phases associated with a population growth that exhibits logistic model represented by ) (December)

Choices

Choice (4)Response

a.

b.

Lag phase ⇾ Stationary phase ⇾ Exponential phase

c.

d.

Edit

Question 4

Appeared in Year: 2020

Question Assertion-Reason▾

Assertion(Ꭺ)

Leslie՚s matrix population model is a discrete and age-independent model

Reason(Ꭱ)

The first row in Leslie՚s projection matrix represents fertility

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Ꭺ is false but Ꭱ is true

d.

Ꭺ is true but Ꭱ is false

Edit