Podcast
Questions and Answers
What is the primary method through which sponges reproduce?
What is the primary method through which sponges reproduce?
- Asexual reproduction by fragmentation and sexual reproduction (correct)
- Binary fission like protozoans
- Asexual budding from the parent organism
- Sexual reproduction involving external fertilization
Which of the following statements correctly describes the structural characteristics of sponges?
Which of the following statements correctly describes the structural characteristics of sponges?
- Sponges have a complex tissue structure with specialized organs
- Sponges possess a skeleton made of either spicules or spongin fibers (correct)
- Sponges exhibit bilateral symmetry and lack a canal system
- Sponges exhibit radial symmetry and are entirely terrestrial
What role do choanocytes play in the sponge's biology?
What role do choanocytes play in the sponge's biology?
- They assist in digestion and absorption of nutrients
- They are responsible for the structural integrity of the sponge
- They are involved in external fertilization processes
- They line the spongocoel and are involved in water movement and feeding (correct)
In which environment are most sponges predominantly found?
In which environment are most sponges predominantly found?
What is the path of water movement through a sponge's body?
What is the path of water movement through a sponge's body?
Which feature is unique to the phylum Ctenophora compared to the other phyla mentioned?
Which feature is unique to the phylum Ctenophora compared to the other phyla mentioned?
What characterizes the digestive process in organisms from the phylum Coelenterata?
What characterizes the digestive process in organisms from the phylum Coelenterata?
Which of the following statements correctly reflects the reproductive strategies of the phyla mentioned?
Which of the following statements correctly reflects the reproductive strategies of the phyla mentioned?
Which characteristic is common to all the listed examples of Platyhelminthes?
Which characteristic is common to all the listed examples of Platyhelminthes?
What type of skeletal structure is associated with some Coelenterata species?
What type of skeletal structure is associated with some Coelenterata species?
Flashcards
Cellular level of organization in sponges
Cellular level of organization in sponges
Sponges are multicellular organisms, but their cells are not organized into tissues or organs.
Asymmetry in sponges
Asymmetry in sponges
Most sponges lack a defined shape and can be irregular in form.
Water transport system in sponges
Water transport system in sponges
Sponges have a system of canals and pores for water circulation, enabling them to filter food and oxygen.
Choanocytes in sponges
Choanocytes in sponges
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Skeleton of sponges
Skeleton of sponges
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What are the key characteristics of Cnidarians?
What are the key characteristics of Cnidarians?
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What is a polyp?
What is a polyp?
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What is a medusa?
What is a medusa?
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What is extracellular digestion?
What is extracellular digestion?
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What is the phylum Ctenophora?
What is the phylum Ctenophora?
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