A recent fossil discovery in Idaho included a jaw with a complete set of teeth. Each tooth in the jaw was sharp and the jaw bones indicate powerful muscles were once attached. This extinct animal was most likely a/n. (7.12.B)

Carnivore

Explanation:

A carnivore is an animal that hunts other animals for food. The sharp teeth and jaw strength are indicators that this animal was a meat eater and a hunter.

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i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave