+91-8076753736 support@wiredfaculty.com

Sponsor Area

Organisms And Populations

Question

Wired Faculty App

Which one of the following population interactions is widely used in medical science for the production of antibiotics?

Commensalism

Mutualism

Amensalism

Parasitism

Solution

C.

Amensalism

Amensalism/Antibiosis (0, –)

Antibiotics are chemicals secreted by one microbial group (eg : Penicillium) which harm other microbes (eg :Staphylococcus)

It has no effect on Penicillium or the organism which produces it.

Some More Questions From Organisms and Populations Chapter

State true or false :

Coin one word for the following statements :
1.Organism that can tolerate only a narrow range of salinity.

2. Plants that can survive a wide range of temperature.

3. Interaction of two species in which one is benefited while other is neither benefited nor harmed.

4. Number of births during a given period in the population that are added to the initial density.

5. the process of maintaing a constant body temperature.

A few organisms can tolerate and thrive in a wide range of temperature, they are called........................

Majority of organisms are restricted to a narrow range of temperature, such organisms are called ........................

The organisms ideally try to maintain the constancy of its internal environment by the process called........................

Mammals from colder climates have shorter ears and limbs to minimize heat loss. This rule is called........................

The parasites that feed on external surface of host organisms are called ........................

The parasites that live inside the body at different sites (liver, kidney, lungs, RBC etc.) are called........................

List two negative interactions between two species.

What is the term for cryptic-colouring in organisms to avoid being detected easily by the predator
?

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation