Which of the following statements are accurate? (MORE THAN ONE OPTION)

Biology

1 answer:

ryzh [129]3 years ago

8 0

Answer:

The statements in options A,B,C,D and E are correct:

A. Deuterstomia, Protostomia and Ecdysozoa are clades of bilaterians.

B. Invertebrates do not posses a back bone.

C. Lophotrochozoans posses a flexible exoskeleton for protection from harmful environments.

D. Studies show that sponges do not consist in a group with a common ancestry hence all animals except sponges share a common ancestor.

E. Lophotrochozoans posses three germ layer: the endoderm mesoderm and ectoderm, are bilaterally symmetrical and are invertebrates.

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In a fox population, the allele frequency of a gene for red fur changes from 20 percent to 30 percent.What can be concluded abou

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