Invertebrates Knowledge-Based Download PDF

Questions

1. 1.

   Which invertebrate phylum is distinguished by radial body symmetry and specialized stinging cells called cnidocytes, which are used for prey capture and defense?

   • A) Porifera
   • B) Platyhelminthes
   • C) Cnidaria
   • D) Annelida
2. 2.

   Which invertebrate phylum is distinguished by a water vascular system that operates tube feet used for locomotion, respiration, and prey capture?

   • A) Echinodermata
   • B) Annelida
   • C) Cnidaria
   • D) Nematoda
3. 3.

   Which invertebrate phylum is characterized by a soft, unsegmented body typically organized into a muscular foot, a visceral mass, and a tissue layer known as the mantle?

   • A) Annelida
   • B) Arthropoda
   • C) Mollusca
   • D) Cnidaria
4. 4.

   Which animal phylum is characterized by organisms that possess a chitinous exoskeleton, a segmented body, and jointed appendages?

   • A) Annelida
   • B) Arthropoda
   • C) Mollusca
   • D) Echinodermata
5. 5.

   Which of the following characteristics is shared by all animals classified as invertebrates?

   • A) The presence of a rigid exoskeleton made of chitin
   • B) An open circulatory system that pumps hemolymph through body cavities
   • C) The absence of a vertebral column or backbone
   • D) Radial symmetry during the adult stage of development