Bio1331 Animals - Evolution - Jawed Fishes (Lecture Eight)

Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Elly Crook
E
Elly Crook
Community Contributor
Quizzes Created: 27 | Total Attempts: 12,551
| Attempts: 81
SettingsSettings
Please wait...
  • 1/16 Questions

    True or False?Mammals have a single-circuit circulatory system.

    • True
    • False
Please wait...
About This Quiz

This quiz titled 'BIO1331 ANIMALS - EVOLUTION - JAWED FISHES' explores the evolution of vertebrates with a focus on jawed fishes, known as gnathostomes. It covers the anatomy, evolutionary origins of jaws, sensory systems, and reproductive methods in Chondrichthyans, assessing key biological concepts.

Bio1331 Animals - Evolution - Jawed Fishes (Lecture Eight) - Quiz

Quiz Preview

  • 2. 

    The lateral line exists in aquatic gnathostomes.What is the function of the lateral line?

    • Contains sense organs used to detect movement and vibrations in surrounding water

    • Marks the line of symmetry

    • Openings in the body surface to allow filtration of water in order to obtain nutrients

    Correct Answer
    A. Contains sense organs used to detect movement and vibrations in surrounding water
    Explanation
    The lateral line in aquatic gnathostomes contains sense organs that are used to detect movement and vibrations in the surrounding water. This sensory system helps the organism to navigate its environment, detect prey or predators, and maintain balance and coordination. By detecting changes in water pressure and flow, the lateral line allows the organism to respond to its surroundings and survive in its aquatic habitat.

    Rate this question:

  • 3. 

    Complete the following sentence:Ray-Finned Fishes have gills contained in a single chamber with one flap, known as the __________.

    Correct Answer
    Operculum
    Explanation
    Ray-Finned Fishes have gills contained in a single chamber with one flap, known as the operculum. The operculum is a bony flap that covers and protects the gills, allowing the fish to breathe efficiently. It opens and closes to facilitate the exchange of oxygen and carbon dioxide. This adaptation is essential for the survival of ray-finned fishes in aquatic environments, as it enables them to extract oxygen from the water and release waste gases.

    Rate this question:

  • 4. 

    Complete the following sentence:Chondrichthyans are a clade of gnathostomes that contains _______, rays and chimaeras.

    Correct Answer
    Sharks
    the sharks
    Explanation
    Chondrichthyans are a clade of gnathostomes that contains sharks, rays, and chimaeras. This means that within the group of gnathostomes, which are jawed vertebrates, chondrichthyans specifically include sharks, rays, and chimaeras.

    Rate this question:

  • 5. 

    Complete the following sentence:In Chondrichthyans, the skeleton is composed primarily of __________.

    Correct Answer
    Cartilage
    Explanation
    In Chondrichthyans, the skeleton is composed primarily of cartilage. Cartilage is a flexible and durable connective tissue that provides structure and support to the body. It is lighter and more flexible than bone, which is advantageous for Chondrichthyans, as it allows for greater maneuverability in the water. Additionally, cartilage is less prone to damage and injury compared to bone, making it well-suited for the unique lifestyle and habitat of Chondrichthyans, which includes swimming and hunting in the ocean.

    Rate this question:

  • 6. 

    Complete the following sentence:Nearly all osteichthyes  have buoyancy with an air sac known as a _______________.

    Correct Answer
    swim bladder
    Explanation
    Osteichthyes, which are bony fish, have a buoyancy mechanism called a swim bladder. This air sac helps them control their buoyancy and maintain their position in the water column. By adjusting the amount of gas in the swim bladder, fish can either become more buoyant and rise in the water or become less buoyant and sink. This allows them to conserve energy and easily maneuver in their aquatic environment.

    Rate this question:

  • 7. 

    True or False?Fish have a single-circuit circulatory system.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Fish have a single-circuit circulatory system. This means that blood flows through their heart and gills in a single loop. The blood is pumped from the heart to the gills, where it picks up oxygen and releases carbon dioxide. It then flows to the rest of the body, delivering oxygen and nutrients, before returning to the heart. This single-circuit system is less efficient than the double-circuit system found in mammals and birds, but it is sufficient for the needs of fish.

    Rate this question:

  • 8. 

    Complete the following sentence:__________ are vertebrates with jaws.

    Correct Answer
    Gnathostomes
    Explanation
    Gnathostomes refers to a group of animals that are vertebrates and have jaws. This term is used to classify various species including fish, reptiles, birds, and mammals, as they all possess jaws. Jaws are an important evolutionary adaptation that allows these animals to efficiently capture and consume their prey. Therefore, the correct answer is Gnathostomes.

    Rate this question:

  • 9. 

    What is the "Scientific" name for the lungfishes?

    Correct Answer
    Dipnoi
    The Dipnoi
    Dipnois
    The Dipnois
    Explanation
    The correct answer is Dipnoi. The term "Dipnoi" is the scientific name for lungfishes. It is the plural form of the word "dipnoan" which refers to any member of the lungfish family. Therefore, all the options provided in the question are correct as they represent the scientific name for lungfishes.

    Rate this question:

  • 10. 

    Complete the sentence below:Dipnoi/Lungfishes go into __________, a state of dormancy or torpor during the summer.

    Correct Answer
    Aestivation
    Explanation
    Dipnoi, also known as Lungfishes, go into aestivation, a state of dormancy or torpor during the summer. Aestivation is a survival strategy used by some animals to cope with extreme heat or drought conditions. During aestivation, lungfishes reduce their metabolic rate and become inactive, conserving energy and water until more favorable conditions return. This allows them to withstand the harsh environmental conditions and ensure their survival during the summer months.

    Rate this question:

  • 11. 

    Is [your statement here] true or false?

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The given correct answer is true.

    Rate this question:

  • 12. 

    Complete the following sentence:Gnathostomes have jaws that are thought to have evolved from 2 pairs of skeletal supports of the _______________.

    Correct Answer
    pharyngeal slits
    Explanation
    Gnathostomes have jaws that are thought to have evolved from 2 pairs of skeletal supports of the pharyngeal slits. Pharyngeal slits are found in the pharynx of chordates and are used for filter feeding or respiration. These slits are supported by skeletal structures called pharyngeal arches. Over time, these arches became modified and eventually gave rise to the jaws of gnathostomes. This evolutionary adaptation allowed for more efficient feeding and expanded the range of food sources available to these organisms.

    Rate this question:

  • 13. 

    What is the "scientific" name for the Gnathostome clade the Ray-Finned Fishes?

    Correct Answer
    Osteichthyes
    Explanation
    The scientific name for the Gnathostome clade that includes Ray-Finned Fishes is Osteichthyes. This term refers to a group of bony fishes that have skeletons composed of bone rather than cartilage. Osteichthyes is a well-established taxonomic classification for this group of fish, and it distinguishes them from other groups such as Chondrichthyes (cartilaginous fishes) and Agnatha (jawless fishes).

    Rate this question:

  • 14. 

    What is unique about the muscles of the gnathostome clade Acinista?Write your answer below and check it in the explanation after the question is attempted.

Quiz Review Timeline (Updated): Mar 16, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 16, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Nov 25, 2015
    Quiz Created by
    Elly Crook
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.