Mandible
A)a layer of skin-like material that in many animals can produce a shell
B)not moving from place to place; attached in a permanent location
C)a long appendage around the head of an animal used for holding or moving
D)a section or part of an animal's body
E)mouth parts that work as jaws
E) mouth parts that work as jaws
_____ symmetry is exhibited by all vertebrates.
Simple
Composed
Radial
Bilateral
Circular
Bilateral
The best known of the segmented worms are the _____.
segmented worm
roundworms
flatworms
earthworms
unified worms
earthworms.
The correct answer is E) mouth parts that work as jaws.
To arrive at this answer, we can break down the provided options and analyze their definitions:
A) a layer of skin-like material that in many animals can produce a shell - This definition describes structures like the exoskeleton found in arthropods, such as the shells of certain mollusks. It does not accurately describe the mandible.
B) not moving from place to place; attached in a permanent location - This definition describes something immobile, like a sedentary organism or a fixed structure. It is not directly related to the mandible.
C) a long appendage around the head of an animal used for holding or moving - This definition generally refers to structures like tentacles, antennae, or limbs. While some animals have head appendages involved in capturing prey or locomotion, this does not accurately define the mandible.
D) a section or part of an animal's boy - This definition is quite broad and could apply to various anatomical features. However, the term "mandible" specifically refers to a particular structure and not just any random body part.
E) mouth parts that work as jaws - This definition accurately describes the mandible. The mandible is the lower jawbone in humans and other vertebrates, functioning as a key component of the mouth and facilitating the process of chewing and biting.
Therefore, the correct answer is E) mouth parts that work as jaws.