"Characteristics of Animals" Various Animal PPT Courseware 2

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"Characteristics of Animals" Various Animal PPT Courseware 2

Let’s talk about it: What are the characteristics of animal movements?

Crawling: The body does not leave the ground or is close to the ground, relying on muscle contraction or toe movement to move the body forward.

Walking: The body is supported by the four limbs, and the body is moved forward by alternately extending and kicking the limbs forward.

Running: An animal whose body is supported by its limbs will instantly lift its limbs off the ground.

Jumping: Relying only on the bouncing of the hind limbs to move the body forward.

Flight: The limbs do not touch the ground, the body is completely in the air, and the body is driven forward by the instigation of the wings.

Swimming: Being in water and propelling the body forward by paddling.

Peristalsis: moving forward by friction between muscle contraction and the ground or ground attachments.

2. Comparison of the digestive systems of different eating animals

Food habits: Frogs mainly feed on agricultural pests

Tongue characteristics:

The mouth is wide, the tongue root grows at the front of the bottom of the mouth, the tongue is long and wide, the tongue tip extends into the mouth, the tongue tip is bifurcated, and the surface of the tongue is covered with a large amount of mucus.

Predation process:

When a frog finds an insect, its tongue suddenly pops out of its mouth, sticks the insect, and rolls it into its mouth.

animal feeding habits

Animal feeding habits: The habit of animals eating food is called feeding habits.

Different animals have very different feeding habits.

Comparison of teeth from different eating animals

There are differentiation of incisors, canines, and molars. The canines are relatively developed and sharp and can tear food.

The incisors are sharp and can cut food, and the molars have wide chewing surfaces with transverse ridges that can grind food.

Differentiation of incisors, canines and molars

The teeth of herbivorous mammals, such as rabbits, are differentiated into incisors and molars.

The teeth of carnivorous and omnivorous animals are differentiated into incisors, molars and canines. The canine teeth are sharp and sharp, suitable for tearing meat. Such as domestic cats, tigers and wolves.

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"Characteristics of Animals" a variety of animal PPT courseware:

"Characteristics of Animals" A variety of animal PPT courseware Characteristics of Animals What is the relationship between the movement patterns of animals and their body structures? The animal's body structure is adapted to its mode of movement. What are the different characteristics of animals living in different environments...

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Update Time: 2024-09-30

This template belongs to science courseware Hunan Education Edition Fourth Grade Science Volume 1 industry PPT template

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