1.
How many food chains do you see in this food web?
Correct Answer
B. 4 food chains
Explanation
The food web consists of multiple interconnected food chains, where each chain represents the transfer of energy from one organism to another. In this particular food web, we can identify four distinct food chains by tracing the flow of energy. Each food chain starts with a producer (such as plants) and progresses through various levels of consumers (such as herbivores, carnivores, and omnivores). Therefore, the correct answer is 4 food chains.
2.
The first consumer in the food chain should be:
Correct Answer
B. Herbivores or omnivores animal
Explanation
The first consumer in the food chain should be herbivores or omnivores animals because they feed on plants or both plants and other animals. Herbivores obtain their energy by consuming plants, while omnivores have a more varied diet, including both plants and other animals. These animals play a crucial role in the food chain as they convert the energy stored in plants into energy that can be utilized by other organisms in the ecosystem.
3.
Animal teeth are well adapted to their diet.
Correct Answer
A. True
Explanation
Animal teeth are well adapted to their diet because different animals have different types of teeth that are specialized for specific functions. For example, carnivores have sharp, pointed teeth for tearing meat, while herbivores have flat, grinding teeth for chewing plants. This adaptation allows animals to efficiently consume and digest their preferred food sources. Additionally, the size, shape, and arrangement of teeth can vary greatly among different animal species, further indicating their adaptation to specific diets. Overall, the statement is true as animal teeth have evolved to suit the dietary needs of different species.
4.
A food chain is a group of the food web that have one or more links in common.
Correct Answer
B. False
Explanation
A food chain is a linear sequence of organisms where each organism is eaten by the next organism in the sequence. It represents the flow of energy and nutrients in an ecosystem. In contrast, a food web is a more complex representation of the feeding relationships in an ecosystem, consisting of multiple interconnected food chains. Therefore, a food chain does not have one or more links in common with other food chains, making the statement false.
5.
Fox is a carnivore animal.
Correct Answer
B. False
Explanation
The statement "Fox is a carnivore animal" is false. While foxes are omnivorous and do consume meat as part of their diet, they are not strictly carnivores. Foxes also eat fruits, vegetables, and insects, making them omnivores. Therefore, the correct answer is false.
6.
Each food chain should start with a:
Correct Answer
C. Producer
Explanation
A food chain is a sequence of organisms in which each organism is the source of food for the next organism in the chain. Producers, such as plants, are the organisms that can produce their own food through photosynthesis. They convert sunlight, water, and carbon dioxide into energy-rich molecules like glucose. These producers are at the base of the food chain as they provide food and energy for other organisms. Therefore, each food chain should start with a producer.
7.
Choose the group of herbivorous animals.
Correct Answer
C. Cow, goat, and horse
Explanation
The group of herbivorous animals consists of animals that primarily eat plants and vegetation. Cow, goat, and horse are all herbivores as they have a diet that mainly consists of grass, hay, and other plant-based foods. They do not consume meat or other animal products as a significant part of their diet, unlike the other options provided.
8.
Choose the group of omnivore animals.
Correct Answer
D. Bear, fox, and monkey
Explanation
The group of omnivore animals consists of animals that eat both plants and meat. Bears are known to eat a variety of foods including berries, fish, and small mammals, making them omnivores. Foxes also have a diverse diet, consuming fruits, insects, small mammals, and birds. Monkeys are also classified as omnivores as they eat a combination of fruits, leaves, insects, and small animals. Therefore, the group of bear, fox, and monkey includes animals that are omnivores.
9.
Choose the group of carnivore animals.
Correct Answer
A. Wolf, lion, and eagle
Explanation
The group of carnivore animals consists of animals that primarily feed on meat. Wolves and lions are well-known carnivores, as they hunt and consume other animals. Eagles are also carnivores, as they primarily feed on other birds and small mammals. Therefore, the correct answer is Wolf, lion, and eagle.