Get Learning science : Part 4 : Biology and life PDF

By Indumati Rao;C.N.R. Rao

Show description

Read or Download Learning science : Part 4 : Biology and life PDF

Best science studies books

Peter D. Moore's Tundra (Biomes of the Earth) PDF

The geography and geology of tundra habitats have many actual and climatic constraints. but whereas biodiversity is low, ecosystems nonetheless exist during this setting. a lot of the megafauna that we're conversant in - similar to wooly mammoths and enormous elk - inhabited tundra environments, and masses of what we all know of early human task came about during this harsh surroundings.

Make Your Own Paper Snowflakes by Peggy Edwards PDF

All you would like is a couple of scissors and you may make attractive snowflake paper cut-outs.

11 Planets: A New View of the Solar System by David A. Aguilar PDF

Forty eight pages, Grade 3-8 - a thrilling name for the astronomic-oriented, this ebook updates readers approximately our sun procedure from 9 planets to 11 and the easy-to-follow reclassifications of them: Rocky/Terrestrial: Mercury, Venus, Earth, Mars; fuel planets: Jupiter, Saturn, Uranus, Neptune, and Dwarf planets: Ceres(new), Pluto and Eris(new).

Sean Callery's Victor Wouk. The Father of the Hybrid Car PDF

In 1974, an inventor named Victor Wouk turned a guy who should be defined as prior to his time. He had built a prototype for the hybrid, a automobile that will develop into the main credible and commercially winning substitute to gasoline-powered autos.

Additional info for Learning science : Part 4 : Biology and life

Sample text

The seed contains a plant embryo surrounded by a protective coat. Under suitable conditions of water, light and heat, new plants are born. Seeds and plant mobility Seeds help the immobile plants to move to new places. The evolution of seeds was the most significant development in the evolution of plants. Seeds have helped the plants to dominate the earth’s surface. How do seeds get around? Some seeds get around on their own as they have ‘wings’ and plumes. Dispersal of seeds - summing up Seeds are dispersed in many ways.

And help in the formation of humus. 24 Learning Science Deadly bacteria : Bacteria and diseases Bacteria are responsible for a number of diseases that cripple and kill humans and animals. Some of the diseases caused by bacteria are: typhoid, cholera, plague, tetanus, whooping cough, tuberculosis, leprosy and caries. Vaccines have been developed to prevent these diseases. Bacteria also cause plant diseases. Dental caries - the bacterial disease Dental caries affects almost everyone. This disease starts in the film on our teeth (or dental plaque).

Plants in spite of their diversity, have the same architecture. Plants grow at the tips throughout their life. All parts of plants have an outer covering. All plants transport water and nutrients upwards from the roots. All plants conduct food produced in the leaves to the other parts. Plants universally add colour and variety to life on earth. A plant certainly has a definite life span but it never becomes an adult in the sense an animal or a human being does. Most plants keep growing by adding new cells and tissues and new organs at the root tips and shoot tips.

Download PDF sample

Learning science : Part 4 : Biology and life by Indumati Rao;C.N.R. Rao

by Mark

Rated 4.05 of 5 – based on 9 votes