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Support and movement in animals

Support and movement in animals

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Running head: SUPPORT AND MOVEMENT IN ANIMALS 1

STUDY MATERIAL

SUPPORT AND MOVEMENT IN ANIMALS

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SUPPORT AND MOVEMENT IN ANIMALS 2

STUDY MATERIAL

INTRODUCTION TO SUPPORT AND MOVEMENT

Support is the ability of an organism to bear its weight and maintain its body from while

movement is the displacement of part or the whole body of the living organism.

The necessity for support in animals

• Provide surface for the attachment of body muscles and body organs.

• Protect delicate body e.g the skull protects the brain and other olfactory organs, the

ribs protect the organs in the chest cavity.

• It maintains body shapes.

The necessity for support in plants

• Provides upright growth to get maximum sunlight for photosynthesis.

• Holds the flowers in position for easy pollination.

• Holds the flowers in position for effective dispersal.

The necessity for movement in plants

• To search for food.

• To escape from the predators.

• To search for mates.

The necessity for movement in plants

• To expose the leaves to trap maximum light for photosynthesis.

• To enable roots to seek water.

Support in animals is brought about by the skeleton. Muscles are attached to the skeleton,

movement is brought about by contraction and relation of muscle against the skeleton. There are

three types of skeleton namely;

Hydrostatic skeleton

It’s fluid under pressure enclosed in a body cavity surrounded by circular and longitudinal

muscles which contract against it to bring about movement. Its found in soft-bodied animals such

as earthworms and caterpillars.

Endoskeleton

It is made up of bones or cartilages. Muscles are connected to the bones by tendons while bones

are joined to each other by ligaments. Compost of living tissues and the muscle is external.

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Running head: SUPPORT AND MOVEMENT IN ANIMALS STUDY MATERIAL SUPPORT AND MOVEMENT IN ANIMALS Institutional Affiliation Name Date 1 SUPPORT AND MOVEMENT IN ANIMALS 2 STUDY MATERIAL INTRODUCTION TO SUPPORT AND MOVEMENT Support is the ability of an organism to bear its weight and maintain its body from while movement is the displacement of part or the whole body of the living organism. The necessity for support in animals Provide surface for the attachment of body muscles and body organs. Protect delicate body e.g the skull protects the brain and other olfactory organs, the ribs protect the organs in the chest cavity. It maintains body shapes. • • • The necessity for support in plants • • • Provides upright growth to get maximum sunlight for photosynthesis. Holds the flowers in position for easy pollination. Holds the flowers in position for effective dispersal. • • • The necessity for movement in plants To search for food. To escape from the predators. To search for mates. The necessity for movement in plants • To expose the leaves to trap maximum light for photosynthesis. • To enable roots to seek water. Support in animals is brought about by the skeleton. Muscles are attached to the skeleton, movement is brought about by contraction and relation of muscle against the skeleton. There are three types of skeleton namely; Hydrostatic skeleton It’s fluid under pressure enclosed in a body cavity surrounded by circular and longitudinal muscles ...
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