Five Kingdom Classification
Five Kingdom Classification - The present trend in biology is to follow the five kingdom classification proposed by R.H.Whittaker in the year 1969. Whittaker classified the living organisms into five kingdoms namely. 1. KINGDOM: MONERA (prokaryotic ..
Care of Young Ones
a) In honey bees (Apis indica) larvae are fed by the workers and the development depends on nature of food provided to the larvae. b) In birds like sparrow, weaver bird, pigeon etc. the hatchlings are naked, blind and need more parental care. Such young ones are called altricial or nidico..
1) Hunting
Hunting for food (subsistence hunting) trade (commercial hunting) and fun (sport hunting) has resulted in the decrease of species. Examples: Dodo, cheetah, musk deer and blue whale..
Hunting for food (subsistence hunting) trade (commercial hunting) and fun (sport hunting) has resulted in the decrease of species. Examples: Dodo, cheetah, musk deer and blue whale..
1. Lamp Brush Chromosomes
These chromosomes occur in the oocytes (germcells in the ovary) of amphibians and in some insects. They are extremely large synapsed homologous chromosomes which can be seen in the diplotene stage of prophase-I in meiosis. They measure about 1500 to 2000 in length. A lampbrush chromosome consist..
These chromosomes occur in the oocytes (germcells in the ovary) of amphibians and in some insects. They are extremely large synapsed homologous chromosomes which can be seen in the diplotene stage of prophase-I in meiosis. They measure about 1500 to 2000 in length. A lampbrush chromosome consist..1) Carbon dioxide
In C 3 plants, the rate of photosynthesis increases with an increase. In CO 2 concentration upto 500 m l.l - 1 . In C 4 plants, photosynthetic rate increases with an increase in CO 2 concentration. However these plants attain saturation at around 360 m l.l -1 (as compar..
In C 3 plants, the rate of photosynthesis increases with an increase. In CO 2 concentration upto 500 m l.l - 1 . In C 4 plants, photosynthetic rate increases with an increase in CO 2 concentration. However these plants attain saturation at around 360 m l.l -1 (as compar..Table 5: Common diseases of domestic animals
5. Salmonellosis (a) No hunger (b) High temperature (c) Diarrhoea with blood clots (a) Isolation (b) Vaccination B. VIRAL DISEASES 1. Foot and mouth diseases (a) Eruptions in the mouth and on the feet (..
Biological Magnification
Certain harmful substances, usually ones not found in nature but introduced by man, may get into plants and/or animals. These poisonous substances may not be broken down in the body or excreted easily, efficiently and quickly. Instead, they accumulate in the tissues, and as the living org..
Certain harmful substances, usually ones not found in nature but introduced by man, may get into plants and/or animals. These poisonous substances may not be broken down in the body or excreted easily, efficiently and quickly. Instead, they accumulate in the tissues, and as the living org..Biology - The study of Life
Biology is a branch of science, which deals with the study of life. It is concerned with the study of living organisms, which are immeasurably diverse and complex than the non-living matter. Hence, biology is also described as life science or natural science. Biology..
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