Which of the following statements is true about a lac operon with the following genotype? ___

I- Oc Z+ Y-

I- O+ Z- Y-

TLS Online TPP Program

#Question id: 27003

#Unit 10. Ecological Principles

In competitive species N1 and N2, four individuals of N2 use the same resource as one individual of N1. According to the conversion factor, what is the value of the per capita competitive effect of N2 on N1(α) and per capita effect of N1 on N2 ( β) respectively?

TLS Online TPP Program

#Question id: 27004

#Unit 10. Ecological Principles

In Lotka and Voltera’s two species competition model: Where N represents population size, r growth rate and K maximum carrying capacity for species 1 and 2. The interspecific competition coefficient α12 <1will mean:

TLS Online TPP Program

#Question id: 27005

#Unit 10. Ecological Principles

Which of the following is correct about interaction?

TLS Online TPP Program

#Question id: 27006

#Unit 10. Ecological Principles

Which of these statements about dinoflagellates is false?

TLS Online TPP Program

#Question id: 27007

#Unit 10. Ecological Principles

Polyphagous parasites, usually complete their life cycle in two or more different host species and they also exhibit sexual reproduction . These types of host are,

TLS Online TPP Program

#Question id: 27008

#Unit 10. Ecological Principles

Which of the following is characteristic of parasitoid/ predators?

a. Consumer usually larger than resource

b. Consumer requires one host for complete development.

c. Habitat independent

d. Consumer takes long time to kill host

e. Consumer never kills their host

f. Host is free living

Which of the following is feature of parasitoid?