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TEMPERATURE
Temperature is a major physical environmental factor which profoundly influences the vital activities of living organisms like, metabolism, growth and reproduction. The primary effect of temperature is on the stability and activities of enzymes which carry out and regulate the biochemical reactions in the cells. Temperature also affects the properties of biomembranes.
We know that there are large temperature differences over the earth to which organisms must adapt. Temperature and availability of water in an area largely determine the types of plants and animals that can grow, survive and reprduce there. Every organism has a certain range of tolerance for temperature delineated by an upper and lower lethal temperature, which vary from species to species. Thus, temperature is one of the factors that limit the geographical distributions of plants and animals. Temperature also indirectly influences the availability of water which itself is an important ecological factor. Before we describe the adaptations in organisms due to temperature stress let us discuss the temperature variation at different latitudes and altitudes and examine the global picture of temperature.
Blunt or Non-penetrating Injury When body is struck by a blunt object such as steering wheel or blows to chest with blunt object. External injury may appear minor but the
Cellular respiration is the transfer of energy from various molecules to produce ATP; takes place in the mitochondria of the eukaryotes, the cytoplasm of prokaryotes. In the proce
S-Gene The S-gene has been suggested to be a super gene complex with several linked genes. It is supposed to have at least six (may he more) closely-linked genes which determi
Types of Cleavage a) Radial Type : If each of the blastomeres of upper tier lies exactly over the corresponding blastomeres of the lower tier the pattern of cleavage is radia
what is origin of diaphargm
Xerarch - Kinds of Succession When the succession takes place in drier area, i.e., the succession progresses from xeric to mesic conditions. It is further subdivided as:
Diplotene: The paired chromosomes repel each other and begin to separate. Separation however, is not completed, because homologous chromosomes remain united by their point
Q. Causes of Diabetic Ketoacidosis? The causes of Diabetic Ketoacidosis (DKA) are the following: - Missing of insulin injection - Infection - Trauma (injury) - Myoc
Define Under nourished persons - nutritional intervention using MNA? An MNA score below 17 indicates that the patient is suffering from under nutrition. Thus in this situatio
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