Multicellular, eukaryotic with cellular grade of body organization. Aquatic, mostly marine few found in fresh water. Solitary or colonial, free living. Sedentary and sessile. May...

The characteristics of this phylum are as follows: Presence of notochord Presence of dorsal hollow (tubular) nerve cord. Presence of pharyngeal gill slits. Post anal...

First animals, solitary or colonial and protoplasmic grade of organization. Simple, unicellular microscopic organisms. Generally free living found in fresh water, salt water and damp...

S.N Poikilothermic animals Homeothermic animals 1. Relatively variable body temperature. Relatively constant body temperature. 2. They are oviparous. Thy may be oviparous or viviparous. 3....

S.N Mitosis Meiosis 1. It occurs in somatic cells. It...

S.N Organic compounds Inorganic compounds 1. Carbon containing compounds are called organic compounds. Compounds of elements other than hydrocarbon are called inorganic compounds 2. Organic...

S.N Cartilage S.N Bone 1. It...

The five kingdom system of classification was proposed by R.H Whittaker in 1969. This classification is based on following criteria: Complexity of cell structure- prokaryote...

Hormone Excess Defeciency Growth hormone or somatotrophin hormone (STH) Gigantism in children Acromegaly in adult. Dwarfism. Thyroid stimulating hormone/thyrotropin (TSH) Increases the activity of thyroid...

  Minerals   Function Symptoms of deficiency ...