Mollusca And Arthropoda Trivia Facts: Quiz!
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Are you familiar with Mollusca and Arthropoda, and do you think you can pass this quiz? Phylum Arthropoda is the biggest phylum of the animal kingdom, while phylum Mollusca is the second largest. The mollusks group includes snails, clams, and squids, while the arthropods include spiders, mites, scorpions, shrimp, crab, lobsters, and insects. Mollusks are soft-bodied, while arthropods have segmented bodies. Try this quiz and check your knowledge.
- 1.
Which one of these is found in the Mollusca category?
- A.
Gastropoda.
- B.
Oglichaeta.
- C.
Ploychaeta.
Correct Answer
A. Gastropoda.Explanation
Gastropoda is the correct answer because it is a class of mollusks that includes snails and slugs. Mollusca is a phylum that consists of various organisms such as clams, octopuses, and squid. Oglichaeta and Ploychaeta are not found in the Mollusca category.Rate this question:
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- 2.
3 out of every 4 species is an Arthropod.
- A.
True.
- B.
False.
Correct Answer
A. True.Explanation
The statement suggests that a significant majority of species on Earth are arthropods. Arthropods are a diverse group of invertebrate animals that include insects, spiders, crustaceans, and more. This answer implies that arthropods make up a large portion of the Earth's biodiversity, which is supported by scientific research and observations.Rate this question:
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- 3.
The most important body cavity for a Mollusk is ____
- A.
Tentacles.
- B.
Blood packed Hemocoel.
- C.
Digestive tract.
Correct Answer
B. Blood packed Hemocoel.Explanation
The correct answer is "Blood packed Hemocoel." In Mollusks, the hemocoel is the most important body cavity as it is filled with blood and serves as a circulatory system. It allows for the transport of nutrients, gases, and waste throughout the body. Tentacles are not a body cavity but rather external appendages used for feeding or sensory purposes. The digestive tract is important for digestion and absorption of nutrients, but it is not considered a body cavity.Rate this question:
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- 4.
Bivalvia is a two-shelled class in Mollusca. Which of the following is likely to belong in this group?
- A.
Scorpion.
- B.
Snail
- C.
Scallop.
Correct Answer
C. Scallop.Explanation
The correct answer is Scallop. Bivalvia is a class in the phylum Mollusca that includes organisms with two shells, connected by a hinge. Scorpions and snails do not have this characteristic, but scallops do, making them likely to belong in the Bivalvia group.Rate this question:
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- 5.
The outer shell of a Mollusk is composed of what?
- A.
Shell.
- B.
Chitin.
- C.
Exoskeleton.
Correct Answer
B. Chitin.Explanation
The outer shell of a mollusk is composed of chitin. Chitin is a tough, flexible, and lightweight material that is also found in the exoskeletons of insects and the cell walls of fungi. It provides protection and support to the mollusk's body, helping to maintain its shape and prevent damage from predators or the environment.Rate this question:
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- 6.
Some species of Arthropods can produce asexually.
- A.
True.
- B.
False.
Correct Answer
A. True.Explanation
Some species of arthropods, such as certain types of insects and crustaceans, have the ability to reproduce asexually. This means that they can produce offspring without the need for fertilization or mating. Asexual reproduction in arthropods can occur through various mechanisms, such as budding, fragmentation, or parthenogenesis. This allows these species to rapidly increase their population size and colonize new habitats. Therefore, the statement that some species of arthropods can produce asexually is true.Rate this question:
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- 7.
An Arthropods exoskeleton can do which of the following?
- A.
Protect the creature.
- B.
Prevents water loss.
- C.
Both A & B
Correct Answer
C. Both A & BExplanation
The exoskeleton of arthropods serves multiple functions. It acts as a protective outer covering, shielding the creature from physical harm and potential predators. Additionally, the exoskeleton helps to prevent water loss by acting as a barrier, reducing the evaporation of moisture from the body. Therefore, the correct answer is that an arthropod's exoskeleton can both protect the creature and prevent water loss.Rate this question:
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- 8.
How old are Mollusca dating back millions of years?
- A.
300-325 million years.
- B.
375-425 million years.
- C.
475-520 million years.
Correct Answer
C. 475-520 million years.Explanation
Think about what would happen if Arthropods and Mollusks did not exist. What would the world be without them? Think about the environmental changes and the changes that we would experience.Rate this question:
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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Mar 21, 2022Quiz Edited by
ProProfs Editorial Team -
Mar 17, 2008Quiz Created by
Yourmotherxx
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