Animal Behavior And Physiology an der Walter Sisulu Universität | Karteikarten & Zusammenfassungen

Lernmaterialien für Animal behavior and physiology an der Walter Sisulu Universität

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Why do birds swallow small stones?

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Small stones help in the food grinding process that takes place in the gizzard.

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How do animals without teeth grind their food? give examples. 

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The special compartment with thick muscular walls called a gizzard. 

examples of animals that have a gizzard are earthworms and birds. 


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Explain the significance of the intestines.

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Digestion(of very little importance) occurs in the intestines. It is responsible for the absorption of nutrients (simple sugars, glycerol, fatty acids and amino acids)

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Explain the significance of a stomach in vertebrates?

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The stomach is a storage organ. It is vital for the digestion of proteins. It contains a protein digesting hormone called pepsin which is effective in acidic solutions. It also has cells that secrete HCl

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Explain how different animals feed on large food masses.

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Some animals such as earthworms and some flatworms feed on the medium (whether living or dead organic matter) they live in. 

Animals like insects, invertebrates, and many vertebrates (rhino, some birds and cattle) chew and / or have scraping mouthparts. They obtain their prey, tear, shred or chew it before swallowing. A few invertebrates and many vertebrates (with representatives from all the classes) capture and swallow their prey whole. 

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What are the different food types that different animals feed on?

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Small particles 

Large food masses 

Liquids 

Symbiotic food supply 

Coprophagy 

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What is the significance of chewing?

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To make food more accessible to digestive enzymes.

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Why do animals need food? 

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1. to obtain energy to carry out the necessary processes for survival 

2. To build and maintain cellular metabolism 

3. For growth and reproduction 

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Give an example of animals that feed on small particles and explain how they do it.

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Tunicates and some gastropods trap small food particles using a sheet of mucus which they then ingest with the food. / Sea cucumbers use tentacles to feed. They burrow in mud and extend out their tentacles to trap small food particles which will be ingested./ Copepods, amphibians, sponges, and bivalves are filter feeders.

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what is a crop?

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A storage chamber that moisturizes and softens food preparing it for the grinding in the gizzard.

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What is the source of energy for animals?

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Plants obtain their energy from the sun and CO2. Herbivores feed on plant tissue, carnivores feed on other animals, omnivores feed on both animals and plant tissue. Detritivores and decomposers feed on dead animal and plant tissue.


NB. All these animals feed to obtain energy, meaning whatever they feed on is their energy source.

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name and elaborate the three aspects of food 

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1. Feeding - selection, acquisition, and ingestion of food 

2. digestion - breaking down of food 

3. Nutrition  - Taking in and using of nutrients.

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Beispielhafte Karteikarten für deinen Animal behavior and physiology Kurs an der Walter Sisulu Universität - von Kommilitonen auf StudySmarter erstellt!

Q:

Why do birds swallow small stones?

A:

Small stones help in the food grinding process that takes place in the gizzard.

Q:

How do animals without teeth grind their food? give examples. 

A:

The special compartment with thick muscular walls called a gizzard. 

examples of animals that have a gizzard are earthworms and birds. 


Q:

Explain the significance of the intestines.

A:

Digestion(of very little importance) occurs in the intestines. It is responsible for the absorption of nutrients (simple sugars, glycerol, fatty acids and amino acids)

Q:

Explain the significance of a stomach in vertebrates?

A:

The stomach is a storage organ. It is vital for the digestion of proteins. It contains a protein digesting hormone called pepsin which is effective in acidic solutions. It also has cells that secrete HCl

Q:

Explain how different animals feed on large food masses.

A:

Some animals such as earthworms and some flatworms feed on the medium (whether living or dead organic matter) they live in. 

Animals like insects, invertebrates, and many vertebrates (rhino, some birds and cattle) chew and / or have scraping mouthparts. They obtain their prey, tear, shred or chew it before swallowing. A few invertebrates and many vertebrates (with representatives from all the classes) capture and swallow their prey whole. 

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Q:

What are the different food types that different animals feed on?

A:

Small particles 

Large food masses 

Liquids 

Symbiotic food supply 

Coprophagy 

Q:

What is the significance of chewing?

A:

To make food more accessible to digestive enzymes.

Q:

Why do animals need food? 

A:

1. to obtain energy to carry out the necessary processes for survival 

2. To build and maintain cellular metabolism 

3. For growth and reproduction 

Q:

Give an example of animals that feed on small particles and explain how they do it.

A:

Tunicates and some gastropods trap small food particles using a sheet of mucus which they then ingest with the food. / Sea cucumbers use tentacles to feed. They burrow in mud and extend out their tentacles to trap small food particles which will be ingested./ Copepods, amphibians, sponges, and bivalves are filter feeders.

Q:

what is a crop?

A:

A storage chamber that moisturizes and softens food preparing it for the grinding in the gizzard.

Q:

What is the source of energy for animals?

A:

Plants obtain their energy from the sun and CO2. Herbivores feed on plant tissue, carnivores feed on other animals, omnivores feed on both animals and plant tissue. Detritivores and decomposers feed on dead animal and plant tissue.


NB. All these animals feed to obtain energy, meaning whatever they feed on is their energy source.

Q:

name and elaborate the three aspects of food 

A:

1. Feeding - selection, acquisition, and ingestion of food 

2. digestion - breaking down of food 

3. Nutrition  - Taking in and using of nutrients.

Animal behavior and physiology

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