TLS Online TPP Program

#Question id: 9585


In light reaction the reaction centre of PSII  receives electron from water molecules by splitting into oxygen, If 5 oxygen molecules evolved per 50 quanta was

absorbed then what is the quantum yield?

#6. System Physiology – Plant
  1. 0.01        
  2. 0.001
  3. 0.1      
  4. 0.25
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TLS Online TPP Program

#Question id: 10694

#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?

TLS Online TPP Program

#Question id: 10695

#10. Ecological Principles

Consumer (+) and resource (-) interactions classified by the two factor

T- Duration or intimacy of the association between individuals

Kp- Probability that resource individuals will be killed

Which of the following some statement are correct?

A-  Value of T for Grazer is greater than parasite

B-  Value of Kp for predator is greater than parasite

C-  Value of Kp for parasite is greater than parasitoid

D-  Value of T for parasitoid is greater than predator


TLS Online TPP Program

#Question id: 10696

#10. Ecological Principles

In a new area two species A and B was discovered and taking energy from another species X and Y respectively. Following some is life history trait of species.

I- A species is often larger than X

II- Each A species taking energy from many X

III- One Y usually supports populations of B species

IV- Fatality of Y is Mild to severe

Which of the following is correct observation of above species?

TLS Online TPP Program

#Question id: 10702

#10. Ecological Principles

Species A has a large effect on community because of its abundance in community known as

TLS Online TPP Program

#Question id: 10702

#10. Ecological Principles

Species A has a large effect on community because of its abundance in community known as

TLS Online TPP Program

#Question id: 10703

#10. Ecological Principles

Keystone predators can maintain species diversity in a community if they