- 1. Metazoa, commonly referred to as animals, are multicellular organisms that belong to the kingdom Animalia. They are characterized by their complex cellular structure, which is organized into specialized tissues and organs that perform distinct functions essential for survival. Unlike plants and fungi, metazoans are predominantly heterotrophic, meaning they obtain their nutrients by consuming other organisms, whether through predation, scavenging, or symbiotic relationships. Metazoa encompass a vast diversity of life forms, ranging from simple sponges to complex mammals, and they exhibit a wide variety of body plans, reproductive strategies, and life cycles. Most metazoans possess specialized nervous and muscular systems that facilitate movement and response to environmental stimuli, distinguishing them from other kingdoms of life. The evolutionary history of Metazoa dates back over 600 million years, and they have adapted to a myriad of ecological niches, thriving in nearly every habitat on Earth, from the deepest oceans to the highest mountains. The study of metazoans provides critical insights into the biology, behavior, and evolution of complex life, as well as the interconnections within ecosystems.
Which phylum do jellyfish belong to?
A) Mollusca
B) Porifera
C) Platyhelminthes
D) Cnidaria
- 2. The respiratory system of insects consists of tiny tubes called:
A) Lungs
B) Alveoli
C) Bronchi
D) Tracheae
- 3. What is the largest species of big cat?
A) Tiger
B) Lion
C) Jaguar
D) Leopard
- 4. Which of the following is a marsupial mammal?
A) Cheetah
B) Kangaroo
C) Elephant
D) Giraffe
- 5. A squid is a member of which class of mollusks?
A) Gastropoda
B) Bivalvia
C) Polyplacophora
D) Cephalopoda
- 6. The skeleton of sharks is made up of what material?
A) Silica
B) Bone
C) Cartilage
D) Chitin
- 7. What is the largest species of penguin?
A) Adelie Penguin
B) Macaroni Penguin
C) Chinstrap Penguin
D) Emperor Penguin
- 8. A kangaroo's young is known as a:
A) Cub
B) Pup
C) Fawn
D) Joey
- 9. In which phylum are spiders classified?
A) Arthropoda
B) Annelida
C) Echinodermata
D) Chordata
- 10. Which of the following is a nocturnal bird of prey?
A) Hawk
B) Falcon
C) Eagle
D) Owl
- 11. A narwhal is a species of what animal?
A) Whale
B) Shark
C) Seal
D) Dolphin
- 12. Which animal has the fastest land speed?
A) Lion
B) Horse
C) Cheetah
D) Gazelle
- 13. What is the largest species of bear?
A) Polar Bear
B) Grizzly Bear
C) Kodiak Bear
D) Black Bear
- 14. What is the largest fish in the world?
A) Whale Shark
B) Tiger Shark
C) Great White Shark
D) Hammerhead Shark
- 15. The national bird of the United States is the:
A) Bald Eagle
B) Peregrine Falcon
C) American Kestrel
D) Osprey
- 16. What type of symmetry do most animals exhibit?
A) Radial symmetry
B) Spherical symmetry
C) Bilateral symmetry
D) Asymmetry
- 17. A group of similar cells organized into a functional unit is called a:
A) Organ
B) Cell
C) Tissue
D) Organ system
- 18. Insects belong to which class of the phylum Arthropoda?
A) Crustacea
B) Arachnida
C) Insecta
D) Diplopoda
- 19. What is the largest living land animal?
A) Hippopotamus
B) Rhinoceros
C) African elephant
D) Giraffe
- 20. What is the outer layer of cells in animal embryos called?
A) Ectoderm
B) Endoderm
C) Mesoderm
D) Epidermis
- 21. How many chambers are there in the heart of a bird?
A) Two
B) Five
C) Three
D) Four
- 22. What is the scientific name for the process of changing from one form to another?
A) Metamorphosis
B) Photosynthesis
C) Osmosis
D) Hydrolysis
- 23. What is the largest order of insects?
A) Coleoptera
B) Diptera
C) Lepidoptera
D) Hymenoptera
- 24. What is the name for the larval form of a frog or toad?
A) Nymph
B) Pupa
C) Tadpole
D) Larva
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