48 Questions
What is the major vertebrate innovation related to feeding in fishes?
Jaws
Which type of fishes are selective and eat only plants?
Herbivores
What do detritivores feed on?
Decomposing organic plant matter
What is the primary food source for omnivores?
Animal matter
What do carnivorous fishes primarily eat?
Other animals
What is the process of prey capture by suction, ram, and manipulation called?
Food capture + processing
Which structure is responsible for grinding food in the pharynx through mechanical, not chemical, digestion?
Pharyngeal Mill
What is the function of gill rakers in fish feeding habits?
Filtering sediments
What is the primary difference between browsers and grazers in fish feeding habits?
Selective vs less selective eating
Which type of fishes feed on decomposing organic plant matter?
Detritivores
What is the most common feeding habit among fishes?
Omnivory
What is the primary food source for herbivorous fishes?
Plant matter
What is the primary function of the gut in fish after the ingestion of food?
Digestion - breaking down food into small, simple molecules involving the use of acid and enzymes
Which group of fishes are stomachless (agastric) according to the text?
Cyprinids (carps)
What is the main site of excretion for ammonia in fish?
Gill
What is the primary nitrogenous waste excretion method for fish that involves direct diffusion and no additional energetic cost?
Ammoniotelism
Which type of fishes have a high relative intestinal length (RIL) and are likely to consume detritus and algae?
Ancistrus (Herbivore)
What is the primary function of the spiral intestine in fish?
Increasing absorptive surface area
Which organ is responsible for the secretion of digestive enzymes in fish?
Pancreas
What is the primary function of the stomach in fish?
Start of digestion and aiding in the breakdown of protein
Which type of fishes are ureotelic and excrete ammonia detoxified as urea, despite it being energetically costly?
Elasmobranchs
What is the primary method of excreting nitrogenous waste for fish that involves ammonia production from protein catabolism?
Ammoniotelic
What is the main function of the gut in fish after the ingestion of food?
Digestion
Which group of fishes are stomachless (agastric) according to the text?
Cyprinids (carps)
What is the primary function of the pyloric caecum in fish digestive physiology?
Optimizing absorptive surface area
Which group of fishes are ureotelic and excrete ammonia detoxified as urea, despite it being energetically costly?
Lake Magadi tilapia
What is the main site of excretion for ammonia in fish?
Gill
What is the primary nitrogenous waste excretion method for fish that involves direct diffusion and no additional energetic cost?
Ammoniotelism
What is the primary food source for omnivorous fishes?
Both plants and animals
What is the primary method of excreting nitrogenous waste for fish that involves ammonia production from protein catabolism?
Ammoniotelism
What is the primary food source for herbivorous fishes?
Algae
What is the main function of the spiral intestine in fish?
Increasing absorptive surface area
What is the primary difference between browsers and grazers in fish feeding habits?
Type of food consumed
Which type of fishes have a high relative intestinal length (RIL) and are likely to consume detritus and algae?
Herbivores
What is the major vertebrate innovation related to feeding in fishes?
Suction feeding
What is the primary function of the gut in fish after the ingestion of food?
Digestion
What is the primary method of prey capture used by fishes?
Suction
Which organ is responsible for grinding food in the pharynx through mechanical, not chemical, digestion?
Pharyngeal mill
What is the primary nitrogenous waste excretion method for fish that involves direct diffusion and no additional energetic cost?
Ammoniotelism
What is the primary food source for detritivorous fishes?
Decomposing organic plant matter
What is the primary function of gill rakers in fish feeding habits?
Filter feeding
Which type of fishes are selective and eat only plants?
Browsers
What is the primary function of the spiral intestine in fish?
Nutrient absorption
Which type of fishes have a high relative intestinal length (RIL) and are likely to consume detritus and algae?
Detritivores
What is the primary food source for omnivorous fishes?
Both animal and plant matter
What is the primary function of the gut in fish after the ingestion of food?
Nutrient absorption
What is the major vertebrate innovation related to feeding in fishes?
Jaws
What is the primary function of the epibranchial organ in fish feeding habits?
Filter feeding
Test your knowledge of feeding, digestion, and excretion in fishes with this BI451 quiz. Explore topics such as feeding habits, digestive tract design, excretion of nitrogenous waste products, food capture and processing, and more. Challenge yourself with questions on prey capture techniques, jaw structure, and the unique adaptations of fishes for their feeding and excretory processes.
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