Science 7 Practice Exam

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  • 1/29 Questions

    What is something adapted?

    • Something a living creatue is born with to help it survive in the inviroment
    • A gift
    • When you adopt a baby
    • When you go fishing
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About This Quiz

The 'Science 7 Practice Exam' assesses understanding of ecological relationships and adaptations in ecosystems. It covers symbiosis, mutualism, parasitism, and fundamental ecosystem interactions, vital for students learning biology and environmental science.

Science 7 Practice Exam - Quiz

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  • 2. 

    What does dead mean

    • When something has never been living

    • When something is living

    • When something was living but now its not

    Correct Answer
    A. When something was living but now its not
    Explanation
    The correct answer is "When something was living but now it's not." This definition of "dead" refers to something that was once alive but is no longer alive. It implies that there was a previous state of being alive, but that state has ceased to exist.

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  • 3. 

    This is a relationship when 1 organism benifits and 1 is neither benifited or harmed

    • Parasitism

    • Mutualism

    • Symbiosis

    • Commensalism

    Correct Answer
    A. Commensalism
    Explanation
    Commensalism is a relationship where one organism benefits while the other is neither benefited nor harmed. In this type of relationship, one organism takes advantage of the resources or shelter provided by the other organism without causing any harm or benefit to it. This is different from mutualism, where both organisms benefit, and parasitism, where one organism benefits at the expense of the other. Symbiosis is a broader term that encompasses all types of close and long-term relationships between different species, including commensalism.

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  • 4. 

    _________ are organisms that grow on or in dead matter

    • Decomposers

    • Eaters

    • Nothing

    • Scavengers

    Correct Answer
    A. Decomposers
    Explanation
    Decomposers are organisms that break down and consume dead matter, such as dead plants and animals. They play a crucial role in the ecosystem by recycling nutrients back into the environment, allowing them to be reused by other organisms. Through the process of decomposition, decomposers help to break down complex organic compounds into simpler forms, ultimately contributing to the overall balance and health of the ecosystem.

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  • 5. 

    This is a relationship when 1 organism benifits and 1 is harmed for example a tapeworm

    • Parasitism

    • Mutualism

    • Symbiosis

    • Commensalism

    Correct Answer
    A. Parasitism
    Explanation
    Parasitism is a type of relationship where one organism benefits at the expense of another organism. In this relationship, the organism that benefits is called the parasite, while the organism that is harmed is called the host. The parasite relies on the host for survival and reproduction, often causing harm or disease to the host in the process. An example of parasitism is a tapeworm living in the intestines of its host, where it obtains nutrients at the expense of the host's well-being.

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  • 6. 

    What does abiotic mean

    • When something has never been living

    • When something is living

    • When something was living but now its not

    Correct Answer
    A. When something has never been living
    Explanation
    Abiotic refers to something that has never been living. It describes non-living factors or components in an ecosystem, such as temperature, sunlight, soil, water, and minerals. These abiotic factors play a crucial role in shaping the environment and determining the types of organisms that can survive in a particular habitat.

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  • 7. 

    Producers Eat food made by Consumers

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement "Producers Eat food made by Consumers" is false. Producers, such as plants, make their own food through photosynthesis and do not rely on consuming food made by consumers. Consumers, on the other hand, obtain their food by eating other organisms, including producers.

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  • 8. 

    An ecosystem is the interaction between living and non-living things in a particular environment

    • False

    • True

    Correct Answer
    A. True
    Explanation
    This statement is true because an ecosystem refers to the complex network of interactions between living organisms and their physical environment. It includes both the biotic (living) components, such as plants, animals, and microorganisms, as well as the abiotic (non-living) factors like air, water, soil, and climate. These interactions are crucial for the functioning and sustainability of the ecosystem, as they involve energy flow, nutrient cycling, and the maintenance of ecological balance.

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  • 9. 

    What are the basic needs of all living things

    • Food

    • Toys

    • Water

    • Habitat

    • A car

    • Air to breath

    • A TV

    Correct Answer(s)
    A. Food
    A. Water
    A. Habitat
    A. Air to breath
    Explanation
    The basic needs of all living things include food, water, habitat, and air to breathe. Food provides the necessary nutrients and energy for growth and survival. Water is essential for hydration and maintaining bodily functions. A suitable habitat provides shelter, protection, and resources for living organisms. Air is necessary for respiration, allowing organisms to take in oxygen and release carbon dioxide.

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  • 10. 

    What does Biotic mean

    • When something has never been living

    • When something is living

    • When something was living but now its not

    Correct Answer
    A. When something is living
    Explanation
    The term "biotic" refers to something that is living. It describes organisms or factors that are derived from living organisms. Biotic factors include plants, animals, and microorganisms, as well as their interactions with each other and their environment. This term is often used in ecological studies to differentiate living components from non-living components in an ecosystem.

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  • 11. 

    Is this the water cycle?  Precipitation to runoff/ground water to evapotation to condensation then back to precipitation

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The given answer is true. The water cycle refers to the continuous movement of water on, above, and below the Earth's surface. It involves various processes such as evaporation, condensation, precipitation, and runoff. Precipitation occurs when water vapor in the atmosphere condenses into liquid or solid form and falls to the Earth's surface. This water can then either run off into rivers and streams or seep into the ground, becoming groundwater. Eventually, some of the water evaporates back into the atmosphere, continuing the cycle.

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  • 12. 

    Something has grown in a place before and dies and something new grows it is called 

    • Primary succession

    • Secondary Succession

    • New growth

    • Regrowth

    Correct Answer
    A. Secondary Succession
    Explanation
    Secondary succession refers to the process of ecological succession that occurs in an area where an ecosystem has been disturbed or destroyed, but the soil remains intact. In this process, new plant and animal species gradually colonize the area, replacing the previous ones that were lost. This can happen after events like forest fires, hurricanes, or human activities. Unlike primary succession, which starts on bare rock or soil, secondary succession begins with remnants of the previous community, allowing for a faster and more efficient regeneration of the ecosystem.

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  • 13. 

    This is a relationship when 2 organisms both benifits

    • Parasitism

    • Mutualism

    • Symbiosis

    • Commensalism

    Correct Answer
    A. Mutualism
    Explanation
    Mutualism is the correct answer because it is a relationship where both organisms benefit. In mutualism, two organisms form a symbiotic relationship in which both individuals gain advantages such as food, protection, or reproduction. This type of relationship is characterized by cooperation and mutual support, where both organisms rely on each other for survival and reproduction.

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  • 14. 

    Does Taking the Bus to work reduse your ecological footprint from if you were taking a bike

    • Yes

    • No

    Correct Answer
    A. No
    Explanation
    Taking the bus to work does not reduce your ecological footprint compared to taking a bike. While both modes of transportation are more environmentally friendly than driving a car, biking has a significantly lower ecological footprint than taking the bus. Biking does not produce any emissions or consume fuel, making it a zero-emission mode of transportation. On the other hand, buses still contribute to emissions and consume fuel, although they are more efficient than individual cars. Therefore, biking has a smaller ecological footprint compared to taking the bus.

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  • 15. 

    Diffusion is when particles are distributed by moving and spreding around the thing

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Diffusion is the process by which particles move and spread out from an area of higher concentration to an area of lower concentration. This movement occurs due to the random motion of particles. Therefore, the given statement is correct, as it accurately describes the concept of diffusion.

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  • 16. 

    What is Erosion

    • When a plant works perfectly

    • Soil that is blown away by wind or water

    • Soil that is destroyed

    Correct Answer
    A. Soil that is blown away by wind or water
    Explanation
    Erosion refers to the process of soil being carried away by wind or water. This can occur when the natural protective cover of vegetation is disrupted, leaving the soil exposed to the elements. The force of wind or water can then displace and transport the soil particles, causing erosion. This phenomenon can have detrimental effects on the environment, as it leads to the loss of fertile topsoil and can contribute to land degradation and sedimentation in water bodies.

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  • 17. 

    A Niche is a roll something plays in its daily life

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The given statement is true. A niche refers to the role or position that an organism or object occupies in its environment and the activities it carries out in its daily life. It describes how an organism interacts with its surroundings, including its habitat, food sources, and interactions with other species. Identifying and understanding an organism's niche is important in ecology as it helps in studying the relationships and dynamics within an ecosystem.

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  • 18. 

    Consumers provide food/energy and make life possible for all other orginisms on earth

    • True

    • False

    Correct Answer
    A. False
    Explanation
    This statement is false because while consumers do play a crucial role in providing food and energy to other organisms, they do not make life possible for all other organisms on earth. Producers, such as plants and algae, are the primary source of food and energy in most ecosystems through photosynthesis. Consumers rely on these producers for their survival, but they are not solely responsible for sustaining all life on earth.

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  • 19. 

    An Embryo is when a plant is fully formed

    • True

    • False

    Correct Answer
    A. False
    Explanation
    its false an Embryo is when the seed is in the ground but it hasn't germinated but something in the ground is growing

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  • 20. 

    When 2 species are in a relationship that lasts over time it is called

    • Parasitism

    • Mutualism

    • Symbiosis

    • Commensalism

    Correct Answer
    A. Symbiosis
    Explanation
    Symbiosis refers to a long-term relationship between two different species. It can be beneficial, neutral, or harmful for both species involved. In this case, the question is asking for the term that describes a relationship that lasts over time, indicating a long-term association between two species. Therefore, the correct answer is symbiosis.

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  • 21. 

    What are some functions of stems

    • To annoy people

    • For support

    • For food storage

    • No functions of a stem

    Correct Answer(s)
    A. For support
    A. For food storage
    Explanation
    The functions of stems include providing support to the plant and storing food. Stems are responsible for holding the plant upright and providing structural support. They also have the ability to store food reserves, which can be used by the plant during times of need, such as during periods of drought or when the plant is flowering or fruiting. Therefore, the correct answer is "For support, For food storage".

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  • 22. 

    When nothing has ever grown in a place and something new grows it is called 

    • Primary succession

    • Secondary Succession

    • New growth

    • Regrowth

    Correct Answer
    A. Primary succession
    Explanation
    Primary succession refers to the process of ecological succession that occurs in an area where no life has existed before. In this case, when something new grows in a place where nothing has ever grown, it indicates the beginning of a new ecosystem development from bare rock or soil. This process involves the colonization of pioneer species, which gradually create conditions for more complex organisms to thrive. Therefore, the term "Primary succession" accurately describes the situation described in the question.

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  • 23. 

    Of these what are natural resources

    • Trees

    • Water

    • Laptops

    • Oil

    • Minerals

    • Lumber

    • Glass

    Correct Answer(s)
    A. Trees
    A. Water
    A. Oil
    A. Minerals
    Explanation
    The correct answer includes trees, water, oil, and minerals. These are considered natural resources because they are derived from the Earth and are essential for human survival and economic development. Trees provide us with oxygen, wood, and other products. Water is a vital resource for drinking, agriculture, and industrial use. Oil is a valuable energy source used in transportation and various industries. Minerals are used in construction, manufacturing, and technology. Therefore, these resources are crucial for sustaining life and supporting human activities.

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  • 24. 

    _________ are organisms that feed or dead plant or animal matter

    • Decomposers

    • Eaters

    • Nothing

    • Scavengers

    Correct Answer
    A. Scavengers
    Explanation
    Scavengers are organisms that feed on dead plant or animal matter. They play a crucial role in ecosystems by breaking down and recycling organic material, contributing to nutrient cycling. Scavengers help to clean up the environment by consuming carcasses and preventing the spread of disease. They are typically opportunistic feeders, consuming whatever food source is available to them. Some examples of scavengers include vultures, hyenas, and certain types of beetles.

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  • 25. 

    ______ the amount of garbage you produce. _____ products other then throwing them away. _______ if you cant reuse them

    Correct Answer
    Reduce
    Reuse
    Recycle
    Explanation
    The correct answer is "Reduce, Reuse, Recycle". This sequence of actions is commonly recommended as a way to minimize waste and environmental impact. "Reduce" means to decrease the amount of garbage produced, for example by using less packaging or buying fewer disposable items. "Reuse" refers to finding alternative uses for products instead of throwing them away, such as repurposing containers or donating clothing. "Recycle" involves the process of converting waste materials into new products to reduce the need for raw materials.

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  • 26. 

    In Photosynthesis a plant takes in ________ , ________ and ________ the plant will give off ________ and ________.

    Correct Answer
    Carbon Dioxide
    Water
    Sunlight
    Oxygen
    Glucose, Sugar
    Explanation
    In photosynthesis, plants take in carbon dioxide, water, and sunlight to produce oxygen and glucose. Carbon dioxide is absorbed from the atmosphere through tiny openings called stomata in the leaves. Water is taken up by the roots and transported to the leaves through the xylem vessels. Sunlight is absorbed by chlorophyll in the chloroplasts of the plant cells, which initiates the process of photosynthesis. During photosynthesis, oxygen is released as a byproduct and glucose is synthesized and stored as a source of energy for the plant.

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  • 27. 

    This is an example of _______________ there is waste in the ocean then baby fish eat it then small fish eat the baby fish then large fish eat the small fish then us humans eat the big fish

    Correct Answer
    Bioaccumulation
    Explanation
    The given answer, bioaccumulation, refers to the process by which toxins or pollutants accumulate in the tissues of organisms as they move up the food chain. In this scenario, waste in the ocean contains toxins that are ingested by baby fish. As these baby fish are eaten by small fish, the toxins accumulate in their tissues. This process continues as small fish are consumed by larger fish, further increasing the concentration of toxins. Finally, when humans consume the big fish, they may be exposed to high levels of these accumulated toxins.

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  • 28. 

    How are plants part of the enviroment

    • For oxygen

    • Basis of food webs

    • For Food

    • For Shelter

    • For filter water

    • For Fibre

    • For Medicine

    • For Transportation

    • For Feul

    Correct Answer(s)
    A. For oxygen
    A. Basis of food webs
    A. For Shelter
    A. For filter water
    Explanation
    Plants are an essential part of the environment because they provide oxygen through the process of photosynthesis. They are also the basis of food webs as they are primary producers, converting sunlight into energy that is then consumed by herbivores, which are then consumed by carnivores. Plants also provide shelter for various organisms, serving as habitats and hiding places. Additionally, plants play a role in filtering water by absorbing pollutants and excess nutrients. They are a source of fiber, which is important for digestion, and they have medicinal properties that can be used for healing. Plants have been historically used for transportation, such as horses pulling carriages, and they can also be used as fuel in the form of wood or biofuels.

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  • 29. 

    Human uses of plants

    • For oxygen

    • Basis of food webs

    • For Food

    • For Shelter

    • For filter water

    • For Fibre

    • For Medicine

    • For Transportation

    • For Feul

    Correct Answer(s)
    A. For Food
    A. For Fibre
    A. For Medicine
    A. For Transportation
    A. For Feul
    Explanation
    Plants are essential for human survival and well-being. They provide us with food, fiber, medicine, transportation, and fuel. Food is a basic necessity, and plants are a major source of nutrients and sustenance for humans. Fiber obtained from plants is used in various industries, such as textile and paper production. Many medicinal drugs are derived from plants, and they play a crucial role in maintaining human health. Plants also serve as a means of transportation, as they are used for landscaping, gardening, and even as fuel for vehicles. Overall, plants have multiple uses that are vital for human existence.

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  • Jun 28, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Jun 19, 2011
    Quiz Created by
    Computers5
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