These two accessory organs produce secretion that enter the duodenum. Besides its several other metabolic function, the liver secrets a […]

It consist of three sections: the duodenum, which id about 25cm long; the jejunum, which is about 2mlong; and the […]

In the esophagus The food moves along the esophagus by peristalsis. This is the rhythmic, involuntary contraction of the gut […]

The mouth  comprises of two jaws, the fixed in the mouth lower  jaw. They bear teeth, used    for  mastication­­, There […]

This is necessary because enzyme secretion is energy consuming. If no control takes place, this energy will be a waste. […]

In this form of heterotrophic nutrition, organisms take food in bulk into their bodies. The food moves within a digestive […]

This is the type of nutrition in which some organisms called heterotrophs feed on complex, ready-made organic food. In other […]

(a) Define the term alternation of generations (b) Draw an annotated life cycle of a moss lo illustrate alternation of […]

Complete O/L notes biology Spirogyra CHAPTER SEVEN 7.0.           SPYROGYRA 7.1.            Classification of spirogyra Kingdom: Protoctista Phylum: Chlorophyta Class: Chlorophyceae Scientific […]

Complete O/L notes biology: Plasmodium CHAPTER SIX 6.0.           PLASMODIUM 6.1.            Classification of plasmodium Kingdom: protoctista Phylum: Rhizopoda Class: Aconoidasida Scientific […]