What is the characteristic that is common to all equinoderms? I - They are invertebrate animals. II - They have a calcareous endoskeleton. III - T...
What is the characteristic that is common to all equinoderms?
I - They are invertebrate animals.
II - They have a calcareous endoskeleton.
III - They have a hydrovascular system.
IV - They have a respiratory system with small pores in the body wall.
a) Only I and II are correct.
b) Only II and III are correct.
c) Only I, II and III are correct.
d) Only II, III and IV are correct.
e) All statements are correct.
I - They are invertebrate animals.
II - They have a calcareous endoskeleton.
III - They have a hydrovascular system.
IV - They have a respiratory system with small pores in the body wall.
a) Only I and II are correct.
b) Only II and III are correct.
c) Only I, II and III are correct.
d) Only II, III and IV are correct.
e) All statements are correct.
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💡 1 Resposta
Ed 
A característica comum a todos os equinodermos é a III - Eles têm um sistema hidrovascular. Portanto, a alternativa correta é a letra C) Apenas I, II e III estão corretas.
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