Quiz on Invertebrates video 1

Which of the following is NOT a characteristic of animals?

• Animal cells have cell walls.

• Animals have an internal digestive system.

• Animals are multicellular heterotrophic organisms.

• Animals typically reproduce sexually.

What is the primary function of choanocytes in sponges?

• To act as an endoskeleton

• To trap and digest food particles

• To allow water to enter the organism

• To comprise the outermost layer

Which phylum includes organisms like sea anemones and jellyfish?

• Porifera

• Echinodermata

• Cnidaria

• Annelida

What type of symmetry do adult echinoderms exhibit?

• Asymmetry

• Radial symmetry

• No symmetry

• Bilateral symmetry

Which of the following is a characteristic of annelids?

• They have a gastrovascular cavity.

• They have a segmented body.

• They have radial symmetry.

• They lack true tissues.

What is the function of nematocytes in Cnidarians?

• To support the internal organs

• To act as an endoskeleton

• To secrete digestive enzymes

• To capture food

Which of the following is NOT a characteristic of invertebrates?

• They have a nervous system.

• They have an open circulatory system.

• They have an endoskeleton.

• They are multicellular heterotrophs.

What is the primary role of amoebocytes in sponges?

• To allow water to enter the organism

• To comprise the outermost layer

• To transport nutrients to other cells

• To line the inner portions

Which phylum is known for having a water vascular system?

• Annelida

• Cnidaria

• Porifera

• Echinodermata

What is the function of the mesoglea in Cnidarians?

• To form an internal skeleton

• To act as a digestive enzyme

• To capture food

• To provide a jelly-like substance between tissue layers