Theropods were an ancient group of dinosaurs that nearly went extinct during the Cretaceous extinction, but survivors evolved into which group of animals?
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Use the figure below to select the term that would appropria…
Use the figure below to select the term that would appropriately label “A”.
Which of the following animals is capable of molting?
Which of the following animals is capable of molting?
What did the common ancestor of ray-finned fishes and sharks…
What did the common ancestor of ray-finned fishes and sharks have?
Blastulation is the process that directly forms…
Blastulation is the process that directly forms…
The animal in the image to above appears to be “licking” sal…
The animal in the image to above appears to be “licking” salt. What is the name of the structure that resembles a tongue?
What name is given to the process of maintaining internal bo…
What name is given to the process of maintaining internal body conditions?
What type of muscle would you find in the heart?
What type of muscle would you find in the heart?
A newly discovered organism was found to have multiple body…
A newly discovered organism was found to have multiple body cavities, all of which were surrounded by muscle tissue. This organism would best be described as…
Which of the following distinguishes deuterostomes from prot…
Which of the following distinguishes deuterostomes from protostomes?