Sucker fish and shark live in close association is a classic example of commensalim. What is commensalism?

what is commensalism ? give example

We find that Rhizobium forms nodules on the roots of leguminous plants. Also frankis another microbe forms nitrogen fixing nodules on the roots of non-leguminous plant Alnus. Is it necessary for a microbe to be in close association with a plant to provide mineral nutrients? Explain with the help of one example.

What is living fossils? Give two examples.

Figure shows how fish react when the glass on one side of an aquarium tank is tapped with a finger. What characteristics of living organisms does the demonstrate?

What are examples of pairs of antagonistic hormones associated with basal metabolism?How does each pair function?

Read the following passage and answer the questions. There are certain substances which behave as normal strong electrolytes at low concentration but at higher concentration they behave as colloidal solutions due to the formation of aggregated particles. Such colloids are called associated colloids and the aggregated particles are called micelles. Soaps and detergents are the examples of associated colloids. The formation of micelles takes place above certain concentration called critical micellisation concentration (CMC) and a characteristic temperature called Kraft temperature. In case of colloids, what does CMC stand for ?

Read the following passage and answer the questions. There are certain substances which behave as normal strong electrolytes at low concentration but at higher concentration they behave as colloidal solutions due to the formation of aggregated particles. Such colloids are called associated colloids and the aggregated particles are called micelles. Soaps and detergents are the examples of associated colloids. The formation of micelles takes place above certain concentration called critical micellisation concentration (CMC) and a characteristic temperature called Kraft temperature. What is the role of CMC in micelle formation ?

Read the following passage and answer the questions. There are certain substances which behave as normal strong electrolytes at low concentration but at higher concentration they behave as colloidal solutions due to the formation of aggregated particles. Such colloids are called associated colloids and the aggregated particles are called micelles. Soaps and detergents are the examples of associated colloids. The formation of micelles takes place above certain concentration called critical micellisation concentration (CMC) and a characteristic temperature called Kraft temperature. What is the role of Kraft temperature in micelle formation ?

What do you mean by negative interactions between species? Name the type of interactions involved in following examples. Control of mosquito larvae by Gambusia fish.