Animal Diversity MCQs

bold all questions lines with proper numberinngs ………………Animals that lack a backbone are classified as: a) Vertebrates b) Invertebrates c) Mollusks d) Arthropods Which phylum includes animals with radial symmetry? a) Porifera b) Cnidaria c) Platyhelminthes d) Nematoda The presence of a true coelom is a characteristic of animals belonging to which group? a) Acoelomates b) Pseudocoelomates c) Coelomates d) Parazoa An animal that molts its exoskeleton is likely a member of which phylum? a) Annelida b) Arthropoda c) Mollusca d) Echinodermata Animals that possess a notochord at some stage in their life cycle belong to which phylum? a) Chordata b) Porifera c) Cnidaria d) Platyhelminthes The phylum Chordata is characterized by the presence of which of the following structures? a) Segmented body b) Exoskeleton c) Notochord d) Radial symmetry Which of the following is NOT a characteristic of arthropods? a) Segmented bodies b) Jointed appendages c) Exoskeleton made of chitin d) Closed circulatory system An animal with a ventral nerve cord and a notochord during its embryonic stage is likely a member of which phylum? a) Annelida b) Mollusca c) Chordata d) Echinodermata Animals that undergo complete metamorphosis typically have life stages including: a) Larva and pupa b) Larva and nymph c) Nymph and adult d) Egg and adult The phylum Mollusca includes animals such as: a) Jellyfish b) Snails c) Roundworms d) Flatworms Which of the following is a characteristic of echinoderms? a) Bilateral symmetry b) Soft bodies with a hard external skeleton c) Radial symmetry d) Water vascular system The phylum Nematoda includes animals commonly known as: a) Flatworms b) Roundworms c) Segmented worms d) Snails Animals belonging to the phylum Porifera are commonly referred to as: a) Sponges b) Corals c) Jellyfish d) Sea stars An animal that possesses a mantle and radula is likely a member of which phylum? a) Mollusca b) Annelida c) Cnidaria d) Platyhelminthes Animals that exhibit cephalization typically have: a) A distinct head region with sensory organs b) A radially symmetric body plan c) No body symmetry d) A closed circulatory system The water vascular system is a unique feature of which group of animals? a) Arthropods b) Mollusks c) Echinoderms d) Annelids Animals that possess a complete digestive system with a mouth and anus belong to which phylum? a) Porifera b) Cnidaria c) Platyhelminthes d) Annelida Which of the following phyla includes animals with a segmented body? a) Porifera b) Cnidaria c) Annelida d) Nematoda The phylum Arthropoda includes animals with which of the following characteristics? a) Radial symmetry b) Soft bodies with an internal skeleton c) Segmented bodies and jointed appendages d) Closed circulatory system Animals in the phylum Echinodermata typically have which type of symmetry? a) Bilateral symmetry b) Radial symmetry c) Asymmetry d) Segmented symmetry Animals in the phylum Platyhelminthes are commonly referred to as: a) Flatworms b) Roundworms c) Segmented worms d) Earthworms The phylum Annelida includes animals such as: a) Earthworms b) Flatworms c) Roundworms d) Jellyfish Animals in the phylum Cnidaria typically exhibit which type of symmetry? a) Bilateral symmetry b) Radial symmetry c) Asymmetry d) Segmented symmetry Which of the following phyla includes animals with a segmented body and jointed appendages? a) Mollusca b) Annelida c) Echinodermata d) Porifera Animals in the phylum Chordata may possess which of the following characteristics? a) Notochord b) Jointed appendages c) Exoskeleton d) Water vascular system The phylum Porifera includes animals that are primarily: a) Marine filter feeders b) Parasites c) Herbivores d) Predators Animals in the phylum Cnidaria often have specialized stinging cells called: a) Tentacles b) Setae c) Cilia d) Nematocysts Animals in the phylum Nematoda are commonly found in which habitats? a) Marine and freshwater environments b) Soil and aquatic environments c) Forests and grasslands d) Polar regions The phylum Mollusca includes animals with which of the following body plans? a) Soft-bodied with an external skeleton b) Segmented bodies with jointed appendages c) Radially symmetric with a water vascular system d) Soft-bodied with a mantle and radula Animals in the phylum Echinodermata are characterized by which unique feature? a) Water vascular system b) Exoskeleton made of chitin c) Closed circulatory system d) Jointed appendages The phylum Platyhelminthes includes animals with which of the following characteristics? a) Segmented bodies and jointed appendages b) Soft-bodied with an external skeleton c) Flattened bodies and bilateral symmetry d) Radially symmetric with a water vascular system Animals in the phylum Annelida are characterized by which of the following features? a) Segmented bodies and jointed appendages b) Soft-bodied with an external skeleton c) Flattened bodies and bilateral symmetry d) Jointed appendages and a water vascular system The presence of a distinct head region with sensory organs is a characteristic of animals exhibiting: a) Cephalization b) Sessility c) Segmentation d) Metamorphosis Animals in the phylum Cnidaria include which of the following organisms? a) Jellyfish b) Earthworms c) Snails d) Sponges The phylum Porifera is characterized by animals with which of the following features? a) Segmented bodies b) Tentacles with stinging cells c) A water vascular system d) Pores for filter feeding Animals in the phylum Nematoda are often referred to as: a) Roundworms b) Flatworms c) Earthworms d) Segmented worms An animal with a body divided into distinct segments is said to exhibit: a) Radial symmetry b) Asymmetry c) Bilateral symmetry d) Segmentation Animals in the phylum Mollusca commonly possess which of the following structures? a) Tentacles with stinging cells b) Jointed appendages c) Mantle and radula d) Water vascular system Animals in the phylum Echinodermata often exhibit which type of symmetry? a) Bilateral symmetry b) Radial symmetry c) Asymmetry d) Segmented symmetry The phylum Porifera includes animals that are primarily: a) Predators b) Filter feeders c) Herbivores d) Parasites Animals in the phylum Cnidaria often exhibit which type of body plan? a) Soft-bodied with an external skeleton b) Segmented bodies with jointed appendages c) Flattened bodies with bilateral symmetry d) Radially symmetric with tentacles The phylum Nematoda includes animals with which of the following features? a) Segmented bodies and jointed appendages b) Soft bodies with an external skeleton c) Flattened bodies and bilateral symmetry d) Unsegmented bodies with a pseudocoelom Animals in the phylum Platyhelminthes are commonly known as: a) Flatworms b) Roundworms c) Earthworms d) Segmented worms Which of the following is NOT a characteristic of animals in the phylum Annelida? a) Segmented bodies b) Jointed appendages c) Closed circulatory system d) Setae for locomotion Animals in the phylum Cnidaria often exhibit which type of symmetry? a) Bilateral symmetry b) Radial symmetry c) Asymmetry d) Segmented symmetry The phylum Porifera includes animals that are primarily: a) Predators b) Filter feeders c) Herbivores d) Parasites Animals in the phylum Cnidaria often exhibit which type of body plan? a) Soft-bodied with an external skeleton b) Segmented bodies with jointed appendages c) Flattened bodies with bilateral symmetry d) Radially symmetric with tentacles The phylum Nematoda includes animals with which of the following features? a) Segmented bodies and jointed appendages b) Soft bodies with an external skeleton c) Flattened bodies and bilateral symmetry d) Unsegmented bodies with a pseudocoelom Animals in the phylum Platyhelminthes are commonly known as: a) Flatworms b) Roundworms c) Earthworms d) Segmented worms Which of the following is NOT a characteristic of animals in the phylum Annelida? a) Segmented bodies b) Jointed appendages c) Closed circulatory system d) Setae for locomotion