The ridge of a birds breastbone is called a keel
Answer:
sperm cell contains the x or y
Explanation:
please give brainliest
Answer:
ATP
Explanation:
Which is energy or glucose/sugar
The three major clades of bilaterian animals are the <span>ecdysozoa, lophotrochozoa, and deiterstomia.
Ecdysozoa are organisms that include insects, crustaceans, chelicerata, and myriapods. Lophoytochozoa include fossil organisms. Deiterstomia include chordata, echinodermata, and hemichordata.
Bilaterian animals have bilateral symmetry, meaning that they have a head, and a tail, as well as back and belly.
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Answer:
evolve I believe is the answer