Show differences between
1. Vertebrates and invertebrates
2. Flying of birds and flying of cockroach.
3. Movement of snails and snakes.
4. Ligaments and tendons
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Answers
1. The animal kingdom has been divided into two major groups: Invertebrates (Non-Chordates) and Vertebrates (Chordates). Invertebrates are those that do not possess a vertebral column or backbone while Vertebrates are those where vertebral column or backbone is present.
2. Movement of birds: Birds show movement by flying through their two thick wings. They have one pair of legs. Movement of cockroach: They move swiftly by with the help of their three pair of legs. ... They have two pair of wings which allows them to fly to shorter distances.
3. Movement of a snake is called slithering movement. It moves fast by whole body and moves by making loops on its sides. A snail moves using its muscular foot. It is a slow movement
4. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure. A ligament is a fibrous connective tissue which attaches bone to bone, and usually serves to hold structures together and keep them stable.
hope this helps you.
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Answer:
Cockroach: A cockroach has three pairs of jointed legs, which help it to walk, run and climb. It also has two pairs of wings; for flying. Large and strong muscles help in the movement of legs.
Birds: birds can walk on the ground and fly as well. Some birds can also swim in the water. A bird has streamlined body. Its bones are light and strong. They are hollow and have air spaces between them. The hind limbs of birds are modified as claws, which help it to walk and to perch. Birds have special flight muscles and the forelimbs are modified as wings. The wings and tail have long feathers, which help in flying.