Dorsal
A)the rear; toward the rear
B)the ability to move from place to place
C)the back side; toward the back (or top)
D)two-sided
E)the front side; toward the front
C) the back side; toward the back (or top)
Echinoderm
A)an ocean invertebrate with spiny skin
B)an animal having no backbone
C)an invertebrate animal that has tentacles around its mouth
D)an outer covering that supports the soft inner tissues in an arthropod
E)an invertebrate animal with jointed legs and an exoskeleton
A) an ocean invertebrate with spiny skin
The term "dorsal" refers to the back side or toward the back (or top) of an object or organism. In the context of biology, it is often used to describe anatomical features or positions. For example, the dorsal fin of a fish is the fin located on its back side. Similarly, in human anatomy, the dorsal side refers to the back side of the body.
To determine the correct definition of "dorsal" among the options provided, we can eliminate some choices based on their descriptions:
B) The ability to move from place to place: This option does not match the definition of dorsal.
D) Two-sided: While "dorsal" refers to a specific side (the back side), it does not imply that the object or organism is two-sided.
E) The front side; toward the front: This option is the opposite of the correct definition of dorsal.
This leaves us with two potential choices:
A) The rear; toward the rear: This option is similar to the correct definition of dorsal, as it refers to the back side or toward the back. However, using the term "rear" can be misleading, as it is often associated with the hind end or buttocks.
C) The back side; toward the back (or top): This option provides a more accurate description of dorsal, as it specifies the back side or toward the back (or top) of an object or organism.
Therefore, the correct definition of "dorsal" is option C) the back side; toward the back (or top).