Test: Ecosystem - 2 - Class 5 MCQ

Consumer that eat only plant are called herbivores.

The consumers that eat only animals are called carnivores.

Carnivores are organisms that primarily feed on the flesh of other animals. They obtain their energy and nutrients by consuming the meat of other animals. Here are some key points about carnivores:

• Diet: Carnivores have a diet that consists mainly or exclusively of animal flesh.


• Food Chain: They occupy a higher trophic level in the food chain, as they are secondary or tertiary consumers.


• Teeth and Digestive System: Carnivores typically have sharp teeth and a specialized digestive system adapted for processing and digesting meat.


• Examples: Lions, tigers, wolves, and cheetahs are examples of carnivores in the animal kingdom.


• In contrast, herbivores primarily consume plant material, omnivores have a diet that includes both plants and animals, and decomposers obtain nutrients by breaking down dead organic matter.

By understanding the different types of consumers, we can gain insights into the diverse feeding habits and ecological roles of organisms in an ecosystem.

 

The consumers that eat both plants and animals are called omnivores.

Omnivores are a type of consumer that have a diverse diet and consume both plants and animals. They have the ability to obtain nutrients from both sources and are adaptable to a variety of food options. Here are some important characteristics and examples of omnivores:

Examples of Omnivores:

• Humans: We are a classic example of omnivores as we consume both plant-based foods (fruits, vegetables, grains) and animal-based foods (meat, fish, eggs, dairy).


• Bears: Bears have a varied diet that includes plants, berries, insects, fish, and occasionally small mammals.


• Pigs: Pigs are known for their ability to consume both plant matter and small animals or insects.


• Raccoons: Raccoons have a diet that consists of both plants (fruits, nuts) and animals (insects, small mammals, fish).


• Seagulls: Seagulls are opportunistic omnivores that eat both marine animals (fish, crabs) and plant matter (seaweed, berries).

 

In conclusion, omnivores are consumers that have the ability to eat both plants and animals. They play an important role in ecosystems by balancing the food chain and have adaptations that allow them to obtain nutrients from a diverse range of sources.

 

In a freshwater ecosystem, reptiles like crocodiles, amphibians like frog?s ore more prominent whereas whale, shark and eel are usually found in marine ecosystem.

Bacteria and fungi are decomposers.

Savanna and Prairies are the types of grassland ecosystems.

Plants can not defend themselves against a cow.

Every food web begins with sunlight.  

In mountain ecosystem the animals have thick fur coats for protection from cold.

Taiga biome is known for evergreen vegetation.       

To answer the question, we need to understand the different types of animal diets.
1. Herbivore:
- Herbivores are animals that primarily eat plants and plant-based materials.
- They have specialized teeth and digestive systems adapted to break down and extract nutrients from plant matter.
- Examples of herbivores include cows, rabbits, and deer.
2. Carnivore:
- Carnivores are animals that primarily eat meat or other animal tissues.
- They have sharp teeth and claws to capture and kill prey.
- Examples of carnivores include lions, tigers, and wolves.
3. Omnivore:
- Omnivores are animals that eat both plants and animals.
- They have a more flexible diet and can consume a variety of food sources.
- Examples of omnivores include humans, bears, and raccoons.
4. Univore:
- The term "univore" is not commonly used in biology or zoology.
- It is not a recognized classification for animals.
Therefore, the correct answer to the question is option C: Omnivore.

A community of animals and plants that interact with their environment is called an ecosystem.

There are six ecosystems in the grid viz. Freshwater, Desert, Marine, Grassland, Forest and Mountain.

The biome in question is tundra which has very cold climate and includes shrubs, grasses, mosses and lichens as vegetation.

Phytoplankton are the primary producers in aquatic food chains, converting sunlight into energy through photosynthesis.

The plant in the picture is a cactus which is expected to be found in the deserts as it does not require much water.

Answer:
The correct answer to the question "Animals and plants that live in water are called ______" is "Aquatic." Here is a detailed explanation of the answer:
Definition of Aquatic:
- Aquatic refers to animals and plants that live or grow in water.
Examples of Aquatic Animals:
- Fish: Various species of fish, such as salmon, trout, and goldfish, live in water.
- Marine Mammals: Animals like dolphins, whales, and seals spend their lives in the ocean.
- Amphibians: Frogs, toads, and newts are amphibians that live both in water and on land.
- Crustaceans: Lobsters, crabs, and shrimp are examples of crustaceans that inhabit oceans, rivers, and lakes.
Examples of Aquatic Plants:
- Seaweed: These are marine plants that grow in the ocean and provide habitat and food for various aquatic animals.
- Water Lilies: These beautiful flowering plants grow in freshwater habitats like ponds and lakes.
- Algae: Algae are simple aquatic plants that can be found in various bodies of water, including oceans, lakes, and rivers.
- Cattails: These tall plants with cigar-shaped heads are commonly found along the edges of ponds and marshes.
Importance of Aquatic Ecosystems:
- Aquatic ecosystems provide habitats for a wide range of organisms and support biodiversity.
- They play a crucial role in the water cycle, regulating water quality and quantity.
- Aquatic ecosystems are also important for nutrient cycling and carbon sequestration.
- They provide valuable resources like food, medicine, and recreation for humans.
In conclusion, animals and plants that live in water are called "aquatic."

It looks like you're presenting a food chain or food web. In this chain:

• Plankton serves as the primary producer or the first trophic level (often phytoplankton in aquatic ecosystems).
• Mussels are primary consumers (filter feeders that eat plankton).
• Fish are secondary consumers (predators of mussels).
• Whale represents a higher trophic level, often as a tertiary consumer or top predator.

Producers like plants are eaten by herbivores like rabbits which are further eaten By bigger meat eating animals like fox etc. When these carnivores die, they are decomposed by decomposers like mushrooms or fungi. These decompose to become nutrients which are taken by plants to grow more food.

The missing part is a plankton or an aquatic plant.