The axial skeleton of human body
The human skeleton has two major divisions; the axial skeleton and the appendicular skeleton. The axial skeleton forms the median longitudinal axis of the body […]
Biology
The gonads and other endocrine glands in human body
Gonads: Gonads are the organs that produce gametes. One pair of ovaries (in females) and a pair of testes (in males) are the gonads that […]
The flowering plants of the plant kingdom
General features of flowering plants Previously, all the flowering plants were kept in the sub-kingdom called Phanerogams. They are the most developed and economically important […]
The non-flowering plants of kingdom Plantae
General characteristics of plants: This kingdom includes autotrophic (some are heterotrophic), eukaryotic and multicellular organisms (some are however, unicellular like Cholerlla, Chlamydomonas) They live in […]
Structure and functions of pancreas
Pancreas (mixed gland) Location and structure: The pancreas is an elongated (12 to 15 cm), fleshy organ consisting of head, body and tail. It is […]
Adrenal glands (the emergency glands)
Adrenal glands (The emergency glands) Two pyramid-shaped adrenal glands rest on the top of each kidney, hence also called supra-renal glands. Each adrenal gland actually […]
Thyroid and Parathyroid glands
Thyroid and Parathyroid glands Thyroid gland: Location and structure: It is the largest endocrine gland located in the neck, anterior to the trachea. It consists […]
Life cycle of honey bee and uses of honey
Life cycle of honey bee The life cycle of honey bee completes in four stages; egg, larva, pupa and adult. The queen bee emerges from […]
Structure and division of labor in honey bees
Honey bees are social insects, which means that they live together in large, well-organized family groups. They are useful to us as they produce honey, […]
Classification of living organisms
The scientific ordering or systematic arrangement of living organisms in a hierarchical series of groups on the basis of their relationships (morphological, evolutionary and other […]