Question

a)
b)
a)
Write any two adaptations of octopus that help it to survive in water
Fish and whale both live in water but have different breathing process
Explain
Name any one source which is rich in vitamin D. How does it help to
make the bones and teeth strong?
Name the disease caused by deficiency of lodine in ou
r body. Write
one symptom of that disease
b)​

Answer 1

Answer:

1) Write any two adaptations of octopus that help it to survive in water.

Ans: The tentacles have suction cups on them and are used to hold onto prey. The tentacles also have taste sensors that let the octopus know if what it grabbed is worth eating. The octopus' mouth is in the centre of its tentacles. It has a sharp beak in its mouth that it uses to crack shells.

2) Fish and whale both live in water but have different breathing process. Explain

Ans: Fish use their gills to take oxygen from the water that they live in. But people get the oxygen we need by breathing air, using our lungs. Whales and dolphins use their lungs to breathe air also. ... So when you see a picture of a whale, see if you can tell the difference.

3) Name any one source which is rich in vitamin D. How does it help to make the bones and teeth strong?

Ans: The best way to ensure that your body gets plenty of vitamin D is by eating eggs and fish, like salmon, mackerel, and cod, as well as drinking plenty of milk.

4) Name the disease caused by deficiency of lodine in our body.

Ans: goiter brochure

5) Write one symptom of that disease.

Ans: Symptoms that do occur might include swelling and coughing. Rarely, symptoms may include throat tightness or trouble breathing.

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