Biology - Genetics, variation, classification, cells

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Organ systems
An organ system is made from a group of different organs, which all work together to do a particular job. E.g:- circulatory system, respiratory system, digestive system, nervous system, reproductive system.
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Organs
An organ is made from a group of different tissues, which all work together to do a particular job. E.g:- heart, lungs, stomach, brain.
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Tissues
Animal cells can form tissues, like muscle tissue. A living tissue is made from a group of cells with a similar structure and function, which all work together to do a particular job. E.g:- muscle, lining of intestines, lining of lungs.
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Male reproductive cell (sperm cell)
They reach the female cell, and join with it. They have a long tail for swimming, and a head so they can enter the egg.
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Female reproductive cell (egg cell)
They join with the male cell, and then provide food for the new cell that has been formed. They are large, and contain lots of cytoplasm.
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Nerve cells
They carry never impulses to different parts of the body. They have long connections at each each and they can carry electrical signals.
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Card 2

Front

An organ is made from a group of different tissues, which all work together to do a particular job. E.g:- heart, lungs, stomach, brain.

Back

Organs

Card 3

Front

Animal cells can form tissues, like muscle tissue. A living tissue is made from a group of cells with a similar structure and function, which all work together to do a particular job. E.g:- muscle, lining of intestines, lining of lungs.

Back

Preview of the back of card 3

Card 4

Front

They reach the female cell, and join with it. They have a long tail for swimming, and a head so they can enter the egg.

Back

Preview of the back of card 4

Card 5

Front

They join with the male cell, and then provide food for the new cell that has been formed. They are large, and contain lots of cytoplasm.

Back

Preview of the back of card 5
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