embryonic growth and development

Embryonic Development - All the events which change a zygote into a fully developed organism is called embryonic development. The entire process of development is called embryogenesis. Von Bear is called the "Father of Modern Embryology". ..

All the events which change a zygote into a fully developed organism is called embryonic development. The entire process of development is called embryogenesis. Von Bear is called the "Father of Modern Embryology". Embryonic Development in..

The 3 germ layers give rise to definite organs and organ systems. The different organs formed from the different layers are Germ Layer - Structures formed Ectoderm - Epidermis, lens retina, internal ear, CNS, middle and posterior pituitary and pineal gland Mesoderm - Muscles, connective tissue, der..

The importance of maintaining the ecological balance and conservation of the resources has been increasingly becoming clear in the last two decades. It has now become necessary for all countries in the world to recognise this fact and plan what is known as 'sustainable development'. The ..

. The first half of the phase and the changes in these phases are controlled by estrogens and progesterone. The secretion of these hormones occur cyclically because of the cyclic secretions of pituitary gonadotropins in the female. The fertilised ovum in mammals and other higher animals passes thro..

Post embryonic growth in some special cells to reinforce and replace the worn out differentiated cells..

Patterns of Growth - Two patterns of growth are commonly seen in animals regarding the proportion of the various body parts. Isometric growth: In this growth pattern, an organ grows at the same rate as the rest of the body. As the organism growths, ..

The growth of plants is regulated by certain chemical substances, which are synthesized by the plant in very small quantities. These substances are formed in one tissue or organ of the plant and are then transported to other sites where they produce specific effects on growth..

The growth of plants is regulated by certain chemical substances, which are synthesized by the plant in very small quantities. These substances are formed in one tissue or organ of the plant and are then transported to other sites where they produce specific effects on growth an..

Population growth rate refers to net rate at which population is added annually to the population. Population growth rate = (B r + I r ) - (D r + E r ) where B r - Birth rate I r - Immigration rate D r - Death rate E r - Emigration rate all expressed as % of population. Age-sex ..