The oldest widely accepted evidence of animals is trace fossils dating to the final period of the Precambrian (635-541 million years ago) known as
A) Devonian.
B) Proterozoic.
C) Cambrian.
D) Jurassic.
E) Ediacaran.
Correct Answer:
Verified
Q12: In flatworms,the _ is/are used to gather
Q13: You find an organism that possesses many
Q14: Q15: Animals most likely evolved most recently from Q16: Nephridia are _. Q18: Poriferans are _. Q19: All animals are _. Q20: The _ is an extension of the Q21: You find a wormlike arthropod with a Q22: By the end of which period,characterized by![]()
A) circulatory organs
B) respiratory
A) herbivores
B) suspension feeders
C)
A) multicellular, heterotrophic,
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