1.
What are the three factors a niche includes?
Correct Answer
D. Food, Nonliving conditions, behavior
Explanation
A niche refers to the specific role or position that an organism occupies within its environment. It includes the resources it uses, the conditions it tolerates, and its interactions with other organisms. In this context, the factors that a niche includes are food, nonliving conditions (such as temperature and pH), and behavior (such as mating rituals or migration patterns). These factors determine the survival and reproduction of the organism within its habitat. The other options do not accurately represent the factors that make up a niche.
2.
_______________ and ___________________
are types of community interactions.
Correct Answer
Competition, predation
Explanation
Competition and predation are types of community interactions. Competition refers to the struggle between individuals or species for limited resources such as food, water, or territory. It can lead to the exclusion or displacement of certain individuals or species from an area. Predation, on the other hand, involves one organism (predator) hunting, killing, and consuming another organism (prey). This interaction is important for regulating population sizes and maintaining balance within ecosystems. Both competition and predation play crucial roles in shaping the structure and dynamics of communities.
3.
What type of feeding relationship is shown in the video?
Correct Answer
B. Food Chain
Explanation
The correct answer is Food Chain. A food chain is a linear sequence of organisms in which each organism is the food source for the next organism. In the video, the feeding relationship depicted is a simple, linear chain where one organism is consuming another organism as its food source. This is characteristic of a food chain rather than a food web, which is a more complex network of interconnected food chains.
4.
_________
is a close relationship between two or more organisms of different
species
Correct Answer
Symbiosis
Explanation
Symbiosis refers to a close relationship between two or more organisms of different species. In symbiotic relationships, the organisms involved interact with each other in a way that benefits at least one of the species involved. This could include mutualism, where both species benefit, or parasitism, where one species benefits at the expense of the other. Symbiosis is a fundamental concept in ecology and is essential for the survival and functioning of many ecosystems.
5.
What are biotic components of an ecosystem?
Correct Answer
A. All the living things in an area
Explanation
The biotic components of an ecosystem refer to all the living things in an area. This includes plants, animals, microorganisms, and any other organisms that are part of the ecosystem. These living organisms interact with each other and with the nonliving components of the ecosystem, such as sunlight, water, and soil, to create a balanced and functioning ecosystem.
6.
What are species?
Correct Answer
B. Group of organisms which can successfully reproduce among themselves
Explanation
Species are defined as a group of organisms that can successfully reproduce among themselves. This means that members of the same species are able to mate and produce fertile offspring. Reproduction is a crucial factor in defining a species because it ensures genetic continuity and the preservation of distinct traits within a population. Organisms that cannot reproduce with each other are considered to belong to different species, as they have evolved to the point where they are no longer compatible for successful reproduction.
7.
What is a group of water lilies in a pond called?
Correct Answer
population
8.
What does the above picture show?
Correct Answer
C. Food web
Explanation
The above picture shows a representation of a food web. A food web is a complex network of interdependent food chains that shows the flow of energy and nutrients through an ecosystem. It includes multiple interconnected food chains, depicting the various feeding relationships between different organisms in an ecosystem. Each organism is connected to multiple other organisms, indicating the transfer of energy and matter between them. This visual representation helps to understand the complexity and interconnectedness of the different species within an ecosystem.
9.
What type of organism eats plants and animals?
Correct Answer
omnivore
Explanation
An omnivore is a type of organism that consumes both plants and animals as part of its diet. Unlike herbivores, which only eat plants, and carnivores, which only eat animals, omnivores have a more diverse diet. They have adapted to consume and digest both plant matter and animal flesh, allowing them to obtain a wider range of nutrients from different sources. This flexibility in their diet enables them to survive in various environments and take advantage of available food sources.
10.
What are the three types of
symbiotic relationships between organisms?
Correct Answer
A. Mutualism, commensalism, parasitism
Explanation
The three types of symbiotic relationships between organisms are mutualism, commensalism, and parasitism. Mutualism refers to a relationship where both organisms benefit from each other. Commensalism is a relationship where one organism benefits while the other is neither harmed nor helped. Parasitism is a relationship where one organism benefits at the expense of the other, causing harm. Therefore, the correct answer is Mutualism, commensalism, parasitism.