Mammals are the only group of animals to demonstrate significant protection of their young.
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Q2: All chordates are vertebrates.
Q39: Nearly all echinoderms are found in which
Q40: The type of reproduction you are observing
Q41: Annelids demonstrate the important animal characteristic of
Q42: Asymmetry refers to arrangement of body parts
Q43: Sponges were the earliest animals to evolve
Q45: A marine animal with tube feet and
Q46: Platyhelminthes is the first phylum to possess
Q47: Cnidarians such as jellyfish have muscle and
Q49: Invertebrate animals greatly outnumber vertebrates.
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