In animals,a sphere of embryonic cells surrounding a fluid-filled cavity is called a
A) gastrovascular cavity.
B) blastula.
C) coelom.
D) gastrula.
E) hydrostatic skeleton.
Correct Answer:
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Q2: A skeleton has a foramen magnum near
Q4: The embryonic germ layer of tissue in
Q10: Which of the following characteristics do all
Q12: The embryonic germ layer of tissue in
Q17: Characteristics shared by primates include
A) flat nails
Q22: Corals and jellyfish belong to the phylum
A)PoriferA.
B)Cnidaria.
C)Platyhelminthes.
D)Nematoda.
E)Annelida.
Q25: Cnidarians are animals found in _ environments.
A)land-dwelling
B)tree-dwelling
C)desert
D)All
Q28: All cnidarians share the ability to do
Q28: Which of the following is NOT a
Q35: Platyhelminthes include which of the following organisms?
A)
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