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What is the main advantage of the dorsoventrally flattened body plan of flatworms?
What is the main advantage of the dorsoventrally flattened body plan of flatworms?
- Reduces the surface area to volume ratio
- Maximizes the surface area to volume ratio for efficient gas exchange (correct)
- Provides them with a body cavity for internal organ development
- Allows them to stay in relatively dry and hot environments
What type of symmetry do flatworms exhibit?
What type of symmetry do flatworms exhibit?
- Spherical symmetry
- Asymmetry
- Bilateral symmetry (correct)
- Radial symmetry
Which of the following is not a characteristic of the digestive system in flatworms?
Which of the following is not a characteristic of the digestive system in flatworms?
- Allows for the entry and exit of food and undigested waste
- Incomplete, sac-like structure with a single opening
- Gas exchange occurs via diffusion across the body surface
- Consists of a true coelom (body cavity) for organ development (correct)
What is the function of the protonephridia (flame cells) in the excretory system of flatworms?
What is the function of the protonephridia (flame cells) in the excretory system of flatworms?
Which of the following is not a common mode of locomotion in flatworms?
Which of the following is not a common mode of locomotion in flatworms?
What is the main function of the rhabdites in the epidermis of flatworms?
What is the main function of the rhabdites in the epidermis of flatworms?
Which of the following is a characteristic of the nervous system in flatworms?
Which of the following is a characteristic of the nervous system in flatworms?
Which of the following is not a feature of the parenchyma in flatworms?
Which of the following is not a feature of the parenchyma in flatworms?
What is the primary mode of reproduction in most free-living flatworms (class Turbellaria)?
What is the primary mode of reproduction in most free-living flatworms (class Turbellaria)?
What is the function of the pharynx in the digestive system of flatworms?
What is the function of the pharynx in the digestive system of flatworms?
Which of the following is a structure that aids in attachment for the class Monogenea?
Which of the following is a structure that aids in attachment for the class Monogenea?
Which of the following statements about the class Cestoda is correct?
Which of the following statements about the class Cestoda is correct?
What is the function of the scolex in the class Cestoda?
What is the function of the scolex in the class Cestoda?
Which of the following statements about the life cycle of the class Trematoda is correct?
Which of the following statements about the life cycle of the class Trematoda is correct?
What is the function of the oral sucker and acetabulum in the class Trematoda?
What is the function of the oral sucker and acetabulum in the class Trematoda?
Which of the following is a structure found in the class Monogenea that aids in attachment to the host?
Which of the following is a structure found in the class Monogenea that aids in attachment to the host?
What is the function of the tegument in the class Trematoda?
What is the function of the tegument in the class Trematoda?
Which of the following statements about the reproductive strategy of the class Trematoda is correct?
Which of the following statements about the reproductive strategy of the class Trematoda is correct?
What is the function of the protonephridia in the class Trematoda?
What is the function of the protonephridia in the class Trematoda?
Which of the following statements about the life cycle of the class Trematoda is correct?
Which of the following statements about the life cycle of the class Trematoda is correct?
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