CATDOLL : CATDOLL: Is the locust's exoskeleton an organ or a tissue?

1. Is the locust exoskeleton an organ or a tissue?

The locust's exoskeleton is an organ that plays a protective role. The locust's body surface is covered with a tough exoskeleton that protects its internal soft organs and prevents the evaporation of body water, allowing it to better adapt to life on land. There are some small holes on the left and right sides of the locust's chest and abdomen, which are the spiracles, the portals for gas to enter and exit the locust's body. The trachea is the place where gas exchange actually takes place in the locust's body.

The locust's body is divided into three parts: head, thorax, and abdomen. The head has antennae, mouthparts, and simple compound eyes. The thorax is the locust's movement center, and the abdomen is the locust's respiratory and reproductive center. The locust's movement organs are two pairs of wings and three pairs of legs, all of which are attached to the thorax, which is the locust's movement center.

Living habits

Adults and nymphs are nocturnal and come out during the day, with no obvious phototaxis. When the density of locust nymphs is high, they will sense each other and form a conditioned reflex, which intensifies their activity. They tend to form groups, lie still, crowd together, and then jump and migrate in a certain direction.

Adults are herbivorous, and their nutritional needs are strong, accounting for more than 75% of their total food intake in their lifetime. They chew plant leaves and flower buds with their chewing mouthparts, leaving notches and holes. In severe cases, they eat up leaves and flower buds on a large area of ​​plants, causing significant economic losses to agriculture, forestry and animal husbandry.

2. What is the function of the locust's exoskeleton?

Locust exoskeleton: It protects and supports the internal soft organs and prevents the loss of water in the body.

3. Does the locust's exoskeleton prevent it from being discovered by natural enemies?

No!

The function of insect exoskeleton is to protect and support internal organs and prevent water from evaporating from the body.

The mechanism to prevent detection by natural enemies is protective coloration, which is a pigment produced and stored by a single layer of epidermal cells.

Contents of the eighth grade textbook of the People's Education Press:

Locusts have an exoskeleton on their body surface, which plays a role in (protecting) and (supporting) muscles and internal soft organs, and preventing (evaporation of body water), etc.

4. The locust's exoskeleton has ______ and ______ functions.

Locusts are terrestrial animals. Due to the dry climate of the land environment, locusts have an exoskeleton on their body surface, which protects and supports the soft organs in the body and reduces the evaporation of water in the body, making them suitable for life on land.

Therefore, the answer is: protect and support the soft organs in the body; reduce the evaporation of water in the body