Feeding Mechanisms and Digestive Systems Quiz

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Questions and Answers

Which of the following is an example of a ruminant?

  • Earthworm
  • Lion
  • Cow (correct)
  • Bird

Detritivores feed on living plants and animals.

False (B)

What unique feature helps carnivores in digestion?

Sharp teeth and claws

Herbivores primarily consume __________.

<p>plants</p> Signup and view all the answers

Match the following groups of organisms with their feeding type:

<p>Whales = Filter feeders Corals = Cnidarians Deer = Ruminants Dogs = Omnivores</p> Signup and view all the answers

What type of teeth do carnivores typically have for tearing flesh?

<p>Sharp molars (A), Sharp canines (C)</p> Signup and view all the answers

Herbivores have very sharp canines which help them tear food.

<p>False (B)</p> Signup and view all the answers

What is one specific digestive feature of ruminants?

<p>4 chambered stomach</p> Signup and view all the answers

Humans digest food primarily using enzymes that break down __________, proteins, and fats.

<p>carbohydrates</p> Signup and view all the answers

Match each organism with its specific method of obtaining food.

<p>Humans = Enzymes to break down food Cnidarians = Tentacles to catch prey Sponges = Filter feeding Birds = Crop to temporarily store food</p> Signup and view all the answers

What role do microbiome bacteria play in human digestion?

<p>They help gut immunity and prevent illnesses (D)</p> Signup and view all the answers

What structure do birds use to grind their food?

<p>Gizzard</p> Signup and view all the answers

Carnivores primarily have a flat molar structure for chewing.

<p>False (B)</p> Signup and view all the answers

Flashcards

Filter Feeder Example

Animals that filter tiny organisms and nutrients from water.

Ruminant

Herbivore with a four-chambered stomach for digesting plant matter.

Detritivore Example

Organism consuming decaying plant or animal matter.

Herbivore

Animal that only eats plants.

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Carnivore

Animal that only eats meat.

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Herbivore Mouthparts

Herbivores have flat molars and incisors for grinding plant matter; small canines, and a side-to-side chewing motion. They often have an elongated jaw with a gap and smooth tongues.

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Carnivore Mouthparts

Carnivores have sharp canines for grabbing prey, sharp molars and incisors for chewing flesh, and very strong jaws and rough tongues.

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Microbiome Digestion Benefit

Microbiome bacteria aid digestion, preventing illnesses like diarrhea and digestive problems. They also boost immunity.

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Human Digestion

Human digestion begins in the mouth and continues in the stomach and intestines, where enzymes break down carbohydrates, proteins, and fats.

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Ruminant Digestion

Ruminants have a multi-chambered stomach (rumen) for fermenting plant materials using microbes in a one-way digestive tract.

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Bird Digestion

Birds use a crop for temporary food storage and a gizzard with small rocks to grind food.

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Sponge Digestion

Sponges filter feed using pores, trapping particles in their water flow.

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Cnidarian Digestion

Cnidarians use tentacles with stinging cells to capture prey and digest it.

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Study Notes

Feeding Mechanisms and Digestive Systems

  • Filter Feeders: Filter nutrients from water; examples include whales and sponges. They consume small organisms.

  • Cnidarians: Soft-bodied, stinging animals; examples include corals, sea anemones, and jellyfish.

  • Ruminants: Herbivorous animals with four-chambered stomachs (e.g., cows, sheep, deer). Their stomachs are adapted for fermenting plant materials using microbes.

  • Detritivores: Feed on decomposing plant and animal matter; examples include earthworms, fungi, and insects.

  • Omnivores: Consume both plants and meat; examples include humans, dogs, and birds.

  • Herbivores: Feed only on plants; examples include cows, rabbits, and snails. Their bodies have unique features for plant-based diets.

  • Carnivores: Feed only on meat; examples include lions, tigers, wolves. Their bodies feature adaptations for tearing and chewing meat.

Mouthpart Differences

  • Herbivores: Have flat molars and incisors, small canines, and elongated jaws to chew plant matter. Incisors act like “nail clippers” to chop off leaves.

  • Carnivores: Have sharp canines for grabbing prey, sharp molars and incisors for tearing flesh, and strong jaws. Their tongues are rough for gripping and manipulating food.

Microbiome Benefits

  • Microbiome bacteria are essential for digestion. They prevent illnesses like diarrhea and digestive problems, and support immunity.

Digestive Systems of Different Organisms

  • Humans: Digestion begins in the mouth and continues in the stomach and intestines. Enzymes break down carbohydrates, proteins, and fats.

  • Ruminants: One-way digestive tract with a multi-chambered stomach (rumen) to ferment plant materials with microbes. They have a crop to temporarily store food and a gizzard to grind food.

  • Birds: Use a crop to store food temporarily and a gizzard to grind food using small rocks.

  • Sponges: Filter feed, trapping particles as water passes through their pores.

  • Cnidarians: Use specialized stinging cells to capture prey.

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