Manta rays are a type of large fish that are often surrounded by small baitfish. The manta rays are unaffected but the small baitfish benefit by being protected just by being near the larger fish. What type
of symbiotic relationship does this relationship describe?

You find a fossil that you are sure shows evidence of bipedalism. you know this because which of the following anatomical traits is present? a. thighbones that angle in toward the knees b. a narrow pelvis c. opposable hallux d. posterior position of the foramen magnum