Methods of asexual reproduction

It is a common method of reproduction in lower plants and animals. A single organism is involved in this method i.e. capable of reproduction. The method of reproduction where a single parent is involved and there is no fusion of male and female gamete is asexual reproduction. Sex cells or gametes are not involved. The … Read more

Differences between Rod cells and Cone cells

S.N Rod cells Cone cells 1. They are more in number. They are less in number. 2. They respond to lower light intensities. They respond to bright light intensities. 3. Usually located around the periphery of retina. Usually located in the centre of retina. 4. They contain pigment rhodopsin. They contain iodopsin. 5. A small … Read more

Properties and functions of hormones

A hormone(from the Greek participle “ὁρμῶ”, “to set in motion, urge on”) is any member of a class of signaling molecules produced by glands in multi cellular organisms that are transported by the circulatory system to target distant organs to regulate physiology and behaviour. A) Properties Regarded as “chemical messengers” of the body. They carry the message from the site of synthesis to the target … Read more