95% of all animals are invertebrates, animals without a backbone.
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Most animals reproduce sexually.
Most animals reproduce sexually.
Animals that have a true coelom (fully lined internal body c…
Animals that have a true coelom (fully lined internal body cavity) are called ________.
A cnidarian that has a stalk-like body plan (like Hydra) is…
A cnidarian that has a stalk-like body plan (like Hydra) is called a __________.
Many sharks have internal fertilization of their eggs.
Many sharks have internal fertilization of their eggs.
Based on DNA, _______________ are the closest relatives to m…
Based on DNA, _______________ are the closest relatives to mollusks.
The protective gill cover that is found in bony fish is call…
The protective gill cover that is found in bony fish is called the _______________.
Most animals have ______________ symmetry.
Most animals have ______________ symmetry.
An organism that can extrude their entire digestive system w…
An organism that can extrude their entire digestive system when startled is a
Which of the following is the best definition of an enumerat…
Which of the following is the best definition of an enumerated power?