Problem 1 Choose the correct term from the... [FREE SOLUTION]

Chapter 22: Problem 1

Choose the correct term from the following pair and then fill in the blank: Animals are defined as autotrophic/heterotrophic organisms, meaning that they can only obtain their nutrients by ___.

Short Answer

Expert verified

Animals are heterotrophic organisms, meaning they can only obtain their nutrients by eating other organisms.

Step by step solution

Identify Autotrophic and Heterotrophic

Autotrophic organisms are those that produce their own food using light, water, carbon dioxide, or other chemicals. Heterotrophic organisms are those that cannot synthesize their own food and rely on other organisms for nutrition.

Determine Which Term Applies to Animals

Animals rely on eating other organisms (plants, animals, fungi, etc.) for their nutrients. This makes them heterotrophic organisms.

Understand Nutrient Acquisition

Since animals are heterotrophic, they obtain their nutrients by consuming other organisms.

Complete the Sentence

Fill in the blank with the correct way how animals obtain their nutrients. Since they are heterotrophic, they obtain their nutrients by eating or consuming other organisms.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

heterotrophic organisms

Heterotrophic organisms, including all animals, cannot produce their own food. They depend on other organisms (like plants, other animals, or fungi) for their nutritional needs. This contrasts with autotrophic organisms, such as plants, which can make their own food through photosynthesis. Heterotrophs are a vital part of the food chain, acting as consumers. Without them, the balance of ecosystems would be severely affected.
For instance:

Herbivores eat plants.
Carnivores eat other animals.
Omnivores consume both plants and animals.

This reliance on eating other organisms is what defines them as heterotrophic.

nutrient acquisition

Nutrient acquisition in heterotrophic organisms involves various methods to obtain essential nutrients. Animals cannot photosynthesize or extract nutrients from inorganic sources as plants do. Instead:

They ingest food through their mouths (for most animals).
Some absorb nutrients directly (like in the case of certain parasites).

After obtaining food, the following steps occur:

Ingestion: Taking in food.
Digestion: Breaking down the food into simpler forms.
Absorption: Nutrients pass into the bloodstream.
Assimilation: Cells use these nutrients for growth, energy, and repair.
Excretion: Removing waste products from the body.

This process ensures that animals get the required vitamins, minerals, and energy to sustain their activities.

food consumption

Food consumption is a critical aspect of heterotrophic organisms' survival. It dictates how they interact with the environment and other organisms. The different categories based on diet include:

Herbivores: Only consume plant materials, like leaves, stems, and roots.
Carnivores: Eat other animals, relying on flesh for their energy.
Omnivores: Consume both plant and animal matter, offering more flexibility in their diet.

Consumption helps in energy transfer within the ecosystem. Through eating, animals play a key role in the food web. Specific adaptations, such as teeth structure, digestive enzymes, and hunting strategies, enable them to efficiently consume and process their particular type of food. This means each animal鈥檚 anatomy and behavior are closely linked to their dietary habits.

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Choose the correct term from the following pair and then fill in the blank: Animals are defined as autotrophic/heterotrophic organisms, meaning that they can only obtain their nutrients by ___.

Short Answer

Step by step solution

Identify Autotrophic and Heterotrophic

Determine Which Term Applies to Animals

Understand Nutrient Acquisition

Complete the Sentence

Key Concepts

heterotrophic organisms

nutrient acquisition

food consumption

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