In a nutshell Xylem and Phloem can be summarized like this:
Xylem Phloem 1. Is a complex tissue 1. Is a complex tissue 2. Consists of mainly dead elements 2. Consists of living tissue 3. Conducts water and minerals from the roots to the aerial parts of the plant. 3. Conducts prepared food from the leaves to storage organs and growing part..
Bio insecticides
The harmful insects and disease causing plants are controlled by the application of their natural parasites and predators. 1) Baculo virusis infect the larval stage of many harmful insects such as wasps and beetles but are harmful to non target organisms. 2) Bacteria Bacillus thuringensis contains..
Biological Rhythms
A rhythm is a recurring process which is wave like in character, because maximum and minimum states appear at identical intervals of tim..
Branches of Biology
Branches of Biology - Biology has two basic branches - Botany and Zoology. Botany is the study of plants while Zoology is the study of animals. Botane (Greek) means plants. Zoon (Greek) means animals. The science of biology is so vast and extensive that biologists divi..
Biology - A Science of Exceptions
Biology - A Science of Exceptions - Physical, chemical and mathematical sciences follow a specific set of rules and regulations. They are governed by a set of laws such as the law of gravity, the laws of thermodynamics, the law of conservation of mass and so on. However, biological..
Biological Nitrogen Fixation
The process is the transformation of gaseous nitrogen into nitrates by living organisms. Biological nitrogen fixation occurs by: a) Symbiotic nitrogen fixation, which is brought about by certain bacteria such as: i) Rhizobium species in the root nodules of legumes (pea family) ii) Nostoc..
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..
Process of Biological Nitrogen Fixation
During N 2 fixation, atmospheric N 2 is fixed into organic compounds (like amino acids, proteins, nucleic acids) in living organisms, via inorganic forms such as NH 4 + . In nitrogen fixation a large amount of energy is required to separate the two nitrogen atoms of the nitrogen molecule...
Functions of Parenchyma
Parenchyma is mainly involved in functions like storage and respiration. It also takes part in other functions like photosynthesis, absorption, secretion and protecti..
d. Campylotropous:
The ovule is like a horse sho..
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