Answer:
A shark's skeleton is made of cartilage , a type of strong but flexible tissue .Most other fish are covered in smooth , flat scales . A shark is covered in sharp , toothlike scales called denticles . Most other fish have flaps over their gills.
Explanation:
I hope it's help yu and plz mark me brainliest........... plz plz plz
Answer:
I think that it is closest to the sun.
Explanation:
it is the second closest planet to the sun.
Answer:
c.assembling parts of the virus
The last one, the planets formed at the same distance from the sun.
