Multiple Choice
In nature, which type of behavior causes animals to produce aggressive displays and sounds?
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49. Animal Behavior
Animal Behavior
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Through what means do coral animals primarily capture their food?
A
Using stinging tentacles called nematocysts
B
Through photosynthesis in their own cells
C
By engulfing prey with pseudopodia
D
By filtering water through gill slits
Verified step by step guidance1
Understand the biology of coral animals: Coral animals are marine invertebrates that belong to the phylum Cnidaria. They are closely related to jellyfish and sea anemones and have specialized structures for capturing food.
Learn about nematocysts: Coral animals possess stinging cells called nematocysts, which are located on their tentacles. These cells contain tiny harpoons that can inject venom into prey, immobilizing them.
Rule out photosynthesis: Coral animals do not perform photosynthesis in their own cells. Instead, they often have a symbiotic relationship with algae called zooxanthellae, which perform photosynthesis and provide nutrients to the coral.
Rule out pseudopodia: Pseudopodia are extensions of the cell membrane used by certain single-celled organisms, like amoebas, to engulf prey. Coral animals do not use pseudopodia for feeding.
Rule out filtering water through gill slits: Coral animals do not have gill slits or filter water for food. Instead, they rely on their tentacles equipped with nematocysts to capture prey directly.
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