1.
Animals lacking a backbone or vertebral column.
2.
The variety of life within a specific ecosystem or habitat.
3.
A taxonomic rank in biological classification, grouping organisms based on shared characteristics.
4.
Specialized stinging cells found in cnidarians, used for defense and capturing prey.
5.
Symmetry Symmetry around a central point, commonly seen in organisms like cnidarians and
7.
External hard covering, typically made of chitin, providing support and protection,
9.
Unique hydraulic system in echinoderms for movement, feeding, and
11.
Describes organisms that are permanently attached to a substrate and do not move.
12.
Organisms that obtain food by filtering particles from the water, as seen in sponges.
13.
Respiratory organs in aquatic organisms that extract oxygen from water.
14.
Benefits provided by ecosystems to humans, such as water purification and
16.
Alteration or elimination of natural habitats, often due to human activities.
17.
The preservation and sustainable management of natural resources and biodiversity.
18.
A phylum of marine invertebrates including starfish, sea urchins, and sea
20.
Reproduction without the involvement of gametes, resulting in offspring
21.
identical to the parent.
22.
Protective structure typically composed of calcium carbonate, found in mollusks like
24.
Division of an organism's body into repeating structures or segments.
25.
A biological community of interacting organisms and their physical environment.
26.
Organisms that primarily feed on other animals.
27.
Organisms that primarily feed on plants.
