Based on the image, answer the following questions: 1) During what period did saltwater clams (family Veneridae) evolve into being? 2) During what period were saltwater clams (family Veneridae) most diverse?   3) Have saltwater clams (family Veneridae) gone extinct? If so, at the end of what period did they go extinct?

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A: Coelem is a fluid filled cavity present in most of the animals.  It is mesodermal in origin .

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Q: A)gills  B) jaws C)pharyngeal slits D)vertebrae E)lavar stage

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Q: At the end of which geological time period did the Starfish become extinct?

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A: Speciation is the mechanism by which organisms develop into distinct species.

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Q: Pharyngeal slits are which of the following?   Question 24 options:   a)  Openings in the…

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Q: Fingers and toes would be an ancestral feature in land vertebrates. A) True B False

A: Vertebrates include all kind of animal species which contains backbone.

Q: What is the advantage to the segmentation that is exemplified in the Phylum Annelida?  Check all…

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Q: In a tide pool, a student encounters an organism with: a hard outer covering that contains calcium…

A: The objective of the question is to identify the structure that would most certainly differentiate…

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Q: Which of the following is the correct classification for this chordate animal: This vertebrate…

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Q: Which of the following is the correct classification for the following invertebrate animal: These…

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