Examlex
The heart is found at what level of organization of the cardiovascular system?
Arthropods
are invertebrates with exoskeletons, segmented bodies, and jointed appendages, including insects, arachnids, and crustaceans.
Jointed Appendages
Body parts that are segmented or divided into joints, enabling movement, characteristic of arthropods.
Soft Exoskeleton
A flexible external covering or support structure found in some organisms, providing protection and structural support while allowing movement.
Earthworm
A type of invertebrate animal known for its role in aerating soil and breaking down organic material into fertile humus.
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