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..
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 divide it into several bran..
Biology - The study of Life
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..
Biomagnification
There are many pollutants like the DDT that are not bio-degradable. These accumulate in the organisms and cause serious health problems. The contamination of water with these pollutants results in their entry into the microscopic plants and animals. These organisms are fed upon ..
There are many pollutants like the DDT that are not bio-degradable. These accumulate in the organisms and cause serious health problems. The contamination of water with these pollutants results in their entry into the microscopic plants and animals. These organisms are fed upon ..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..
Biotechnology
Biotechnology - Biotechnology is science of manufacturing useful substances, chemicals, medicines by use of living organisms and their life process. In fact, biotechnology is not a new science. Alcohol was the first product manufactured by ancient biotechnologist. In recent years, biotechnology is ..
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..
Nature and Scope of Biology Summary
>Classical branches largely provide knowledge in the respective areas of study. Some classical branches include Taxonomy (classification), Morphology (study of external form), Anatomy (study of internal structure), Histology (study of tissues), Cell Biology (Study of cells) etc. Interdisc..
Lipids
Lipids - fig. 13.8 - Classification of Lipids Lipids are also organic compounds containing carbon, hydrogen and oxygen. However, hydrogen and oxygen occur in a ratio much higher than in water. Lipids form about 3.5% of the total chemical composition of a cell. Lipids are generally insoluble in wate..
Lipids - fig. 13.8 - Classification of Lipids Lipids are also organic compounds containing carbon, hydrogen and oxygen. However, hydrogen and oxygen occur in a ratio much higher than in water. Lipids form about 3.5% of the total chemical composition of a cell. Lipids are generally insoluble in wate..Introduction
Biogeography reveals that living organisms (plants and animals) are found practically everywhere on this earth. The living components interact among themselves as well as with their physical environment like soil, air and water. The branch of biology, which deals with the relati..
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