Chapter 9: Movements in the Body

Lesson 27/Chapter 9: Movements in the Body

PT2-Portion

Locomotion

• is the type of movement where an organisms can change place to another.

Movement in Earthworm

- is usually seen moving in the soil on a rainy day(elongated body with no bones or limbs

-it has many ring-like segments that have muscles. These muscles help it to contract and expand its body to provide a push that helps the body to move forward.

-Setae- a special bristle-like structures used to grip the ground.

Movement in Snail

Snail

-Has a slimy body without bones and a shell for protection.

-It has a pair of tentacles with eyes at the tips of its shell.

-it moves with the help of a muscular organ known foot.

- It makes wave-like movements by expanding and contracting the muscles in the foot.

-It secretes a slimy substance known as the mucous that enables the snail to to move with ease.

Multiple Select

Movement in Earthworm has the following characteristics below. Check more than one

• It has elongated body

• It has tentacles

• Repeated expansion and contraction of its body helps it to move

• it has many ring-like segments that have muscles

Multiple Select

Snail has a slimy body without bones and a ________ for protection.

• tentacles

• shell

• mucous

• foot

Multiple Select

It is a pair of ________ with the eyes on tip of it.

• setae

• limb

• tentacles

• foot

Multiple Select

Which of the following statements below describe setae?

• it has special bristle- like structure

• a wave-like movement

• is found in the underside of its body

• to fix its rear part of the ground

Multiple Select

Snail secretes a substance known as ______

• tentacles

• mucous

• setae

• fluid

Movement in Cockroach

Cockroach can walk, run, climb and even fly short distances

• It is made up three parts

• Head, thorax, abdomen

Parts of Cockroach

• Thorax- is the middle part of the cockroach and bears two pairs of wings and three pairs of jointed legs for movement.

• It has also a pair of sensitive antennae located at its head. It enables to sense and smell its surroundings.

• Cockroaches walk in a very unique manner moving three legs at a time.

Movement in Fish

*The body of fish is designed for swimming.

It's shape is like a boat or airplane- thicker in the middle and tapers at the both ends. Such a body is called streamlined body.

-The streamlined body shape allows water to move easily around the body and offers least resistance to its flow.

Parts and functions of Fish

• A fish swims primarily with the help if fins. It helps maintaining the balance of the body and changing direction while swimming.

• A fish uses its tail fin which moves side to side in a zigzag movement pushes the water and propels the fish forward also called the caudal fin.

• A fish also has a sac-like structure in its body called the swim-bladder, which is filled with air and keeps the fish afloat.

Multiple Select

Cockroach is made up of three parts

• head

• tail

• abdomen

• thorax

Multiple Select

Fish moves with the help of its _______ to move.

• caudal fin

• fins

• swim-bladder

• streamlined body

Multiple Select

A cockroach can

• walk

• run

• swim

• climb

Multiple Select

________ shaped of a fish which allow water to move easily in the water.

• zigzag body

• swim-bladder

• streamlined body

• caudal fin

Multiple Select

The fish has a sac-like structure in its body which is filled with air and keeps the fish afloat.

• caudal fin

• swim-bladder

• streamlined body

• fins

Multiple Choice

Cockroach walk in a very unique manner moving _____ at a time

• five legs at a time

• two legs at a time

• four legs at a time

• three legs at a time

Multiple Choice

_____is the middle part of the cockroach and bears two pairs of wings and three pairs of jointed legs for movement.

• head

• abdomen

• thorax

• foot

Movement in Birds

• Most birds can fly, can even walk, hop or run.

• Some birds such as ducks,geese, and swans can even swim in water.

• Birds have a streamlined body, which makes it easy for them to move through the air. The air can easily cut through the sides of the body and offers least resistance.

• The bones of most birds are hollow.Hollow bones make the body lightweight and fit for flying.

Flightless Birds

Birds with heavy bodies, such as ostriches, penguins, and emus, cannot fly.

Moreover for Birds that can Fly

**The forelimbs of birds are modified to form wings for flight. The body is covered with feathers. It will keep them warm while flying in the height.

-The chest muscles are very strong that enable birds to flap their wings when flying.

Movement in Snake

Snakes slither or crawl on the ground in a wave-like motion. They can move forward very fast but not in a straight line.

-They have a long and strong backbone with interconnected muscles that are joined to the backbone and the ribs.

• The backbone snakes are very flexible. It usually move in a wave-like motion and press against the ground with the help of scales for push forward.

Movement of Human

• Human walks, run and jump from one place to another. We eat, talk and laugh by moving our hands and mouth.
• We respond to questions by nodding our head, moving our shoulders or by gesture through our hands.
• Humans are vertebrates, the bones are present within the body form an endoskeleton. The skeleton and muscles are involved in both locomotion and movements.

Multiple Select

Most birds can

• fly

• walk

• swim

• hop

Multiple Select

Birds have a streamlined body because

• which makes it easy for them to move through the air.

• it makes them light weight to fly

• air can easily cut through the sides of the body and offers least resistance.

• it makes them attractive to the eye

Multiple Select

Living organisms show various types of

• body part

• movement

• styles

• locomotion

Fill in the Blank

true or false

Earthworms move by contracting and expanding the muscles of their body.

Multiple Select

Snakes _____ on the ground.

• walk

• slither

• hop

• crawl

Multiple Select

Humans made up of __________ involved in both locomotion and movements.

• skeleton

• blood

• muscles

• nerves

Multiple Select

The following are heavy birds that are flightless

• ostrich

• penguin

• eagle

• emus

Multiple Select

Birds have special features for flight-

• hollow bones

• streamlined body

• muscled

• wings

Multiple Choice

Match the word to the choices below:

Muscular foot

• earthworm

• snakes

• cockroach

• snail

Multiple Choice

Match the word to the choices below:

Setae

• fish

• snail

• earthworm

• snakes

Multiple Choice

Match the word to the choices below:

jointed legs

• birds

• fish

• cockroach

• snail

Multiple Select

Match the word to the choices below:

Streamlined body

• birds

• snail

• fish

• earthworm

Multiple Choice

________Help earthworm to form a grip on the soil and move easily.

• mucous

• tentacles

• setae

• caudal fin

Multiple Choice

_______ has a pair of tentacles which eyes at the tips of its shell.

• cockroach

• snake

• bird

• snail

Multiple Choice

Movement of the body is known as _____________

• motion

• walk

• locomotion

• crawl

Multiple Choice

________ is filled with air and keeps the fish afloat.

• caudal fin

• fin

• streamlined body

• swim-bladder