CATDOLL : CATDOLL: Common features of locusts and pigeons in adapting to flight

1. Common features of locusts and pigeons in adapting to flight

① Forelimbs transformed into wings ② Long bones are hollow ③ Pectoral muscles are well developed ④ There are air sacs Most birds live in flying, and their structural characteristics are always adapted to their lives, such as feathers on their body, forelimbs transformed into wings, streamlined bodies to reduce resistance during flight, air sacs in the body to assist the lungs in completing double breathing and supplying sufficient oxygen, and some bones are hollow.

2. Structural characteristics of seven-spotted ladybugs, locusts, spiders, centipedes and shrimps

The body is segmented and divided; the segmented antennae belong to arthropods.

3. The common characteristics of the four animals, sparrow, lizard, locust and gibbon, are

Animals are divided into vertebrates and invertebrates based on whether they have a spine or not. Shrimps, dragonflies, razor clams, and locusts have no spine on their backs and are invertebrates, while whales, peacocks, and kangaroos have a spine and are vertebrates.

They are also divided into warm-blooded animals and cold-blooded animals according to whether their body temperature is constant. Shrimp, dragonflies, razor clams, and locusts are cold-blooded animals, while whales, peacocks, and kangaroos are warm-blooded animals.

So choose: D

4. The locust's locomotion is jumping and flying. The structural characteristics that are adapted to jumping are ( ) A. Well-developed forelegs B. Well-developed midlegs C. Segmented legs and hind legs

Jumping is a form of movement that relies on the bounce of the hind legs to lift the body into the air. Animals with well-developed hind legs include locusts, frogs, and kangaroos. Locusts are typical arthropods with well-developed hind legs suitable for jumping; locusts can also fly by flapping their wings; crawling is a form of movement that relies on muscle contraction or the movement of appendages to push the body close to the ground forward. Locusts can also move by crawling when there are no natural enemies.

So choose: C

5. What do locusts, shrimps, and crabs have in common?

1. Both have exoskeletons.

2. Both have multiple pairs of legs.

3. Both are limb-bound.

4. They all have tentacles.