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Questions and Answers
What is the primary role of decomposers in an ecosystem?
What is the primary role of decomposers in an ecosystem?
Which statement accurately describes energy transfer in trophic levels?
Which statement accurately describes energy transfer in trophic levels?
Why are apex predators typically fewer in numbers compared to other organisms in a food web?
Why are apex predators typically fewer in numbers compared to other organisms in a food web?
What usually limits the number of different species in a particular habitat?
What usually limits the number of different species in a particular habitat?
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Which statement best describes the concept of a food chain?
Which statement best describes the concept of a food chain?
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Which habitat includes both terrestrial and aquatic features?
Which habitat includes both terrestrial and aquatic features?
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Why are habitats crucial for maintaining biodiversity?
Why are habitats crucial for maintaining biodiversity?
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Which type of environment is primarily characterized by light-loving plants?
Which type of environment is primarily characterized by light-loving plants?
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What role do producers play in an ecosystem?
What role do producers play in an ecosystem?
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What can be a consequence of habitat destruction on animal species?
What can be a consequence of habitat destruction on animal species?
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Which organisms are typically found at the top of the food chain?
Which organisms are typically found at the top of the food chain?
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How do invasive species affect local habitats?
How do invasive species affect local habitats?
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What is the primary function of a habitat for wildlife?
What is the primary function of a habitat for wildlife?
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What effect does cutting down mangrove trees have on the ecosystem?
What effect does cutting down mangrove trees have on the ecosystem?
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Which of the following accurately describes metamorphosis?
Which of the following accurately describes metamorphosis?
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How many life stages are present in complete and incomplete metamorphosis?
How many life stages are present in complete and incomplete metamorphosis?
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What is the primary role of bees in garden ecosystems?
What is the primary role of bees in garden ecosystems?
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Which group of animals is classified as herbivores?
Which group of animals is classified as herbivores?
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Which of the following best describes the role of omnivores in an ecosystem?
Which of the following best describes the role of omnivores in an ecosystem?
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What does the classification of 'primary consumer' refer to?
What does the classification of 'primary consumer' refer to?
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What happens to a tadpole as it develops into a froglet?
What happens to a tadpole as it develops into a froglet?
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Study Notes
Grade 4 Science Q2 Periodic Test
- Question 1: Human movement is facilitated by bones.
- Question 2: The skeletal system's crucial function is providing structural support and enabling upright posture.
- Question 3: The femur is the longest and strongest bone in the human body.
- Question 4: Muscles support the body and enable lifting heavy objects.
- Question 5: The circulatory system delivers oxygen and nutrients to muscles during physical activity.
- Question 6: The respiratory system's primary function is exchanging oxygen and carbon dioxide in the lungs.
- Question 7: Deep breathing after exercise is a direct result of the respiratory system regulating body temperature.
- Question 8: The digestive system breaks down food into smaller molecules, leading to feelings of fullness.
- Question 9: The stomach and intestines work together by digesting food and absorbing nutrients and water.
- Question 10: The heart pumps blood to the body, and the lungs filter blood returned to the heart.
- Question 11: Plant root systems anchor the plant in the soil.
- Question 12: Stems in a plant's shoot system transport water and nutrients throughout the plant.
- Question 13: Leaves contribute to a plant's functions by capturing sunlight for photosynthesis.
- Question 14: Both root and shoot systems are essential for a plant because root systems absorb nutrients, and shoot systems carry out photosynthesis.
- Question 15: Well-developed root and shoot systems indicate a plant is thriving.
- Question 16: A habitat is the area where plants and animals reside and live ecologically.
- Question 17: Terrestrial habitats include forests, grasslands, and deserts.
- Question 18: Aquatic environments are home to animals with gills and fins.
- Question 19: Birds and insects primarily populate terrestrial and aerial habitats.
- Question 20: Wildlife habitats provide shelter and resources for survival.
- Question 21: Mangrove swamps are home to organisms including mussels, fish, corals, and certain insects.
- Question 22: Sea shores support creatures such as clams, crabs, and sea horses, but not birds.
- Question 23: Garden ecosystems can contain a range of plants and animals including trees, flowers, and rats.
- Question 24: Bees play an important role in garden ecosystems as pollinators.
- Question 25: Cutting down mangrove trees can result in habitat loss and impacts on local communities.
- Question 26: Metamorphosis describes an animal's physical development after birth or hatching.
- Question 27: Complete metamorphosis involves four stages, while incomplete metamorphosis has three.
- Question 28: A tadpole transforms into a froglet by losing gills and a tail.
- Question 29: Child development involves learning basic motor skills like walking and talking, as well as becoming increasingly independent.
- Question 30: Adolescence is a period of significant change with both physical and developmental changes.
- Question 31: Omnivores consume both plants and animals.
- Question 32: A lion is a carnivore.
- Question 33: Herbivores obtain food by consuming plants.
- Question 34: Omnivores have specific teeth for processing both plant and animal matter.
- Question 35: Omnivores contribute to ecosystem balance by regulating plant and animal populations.
- Question 36: A primary consumer is correctly referred to as a herbivore.
- Question 37: Bacteria are decomposers.
- Question 38: Decomposers break down dead organisms, returning nutrients to the environment.
- Question 39: Transferring energy throughout trophic levels is inefficient, but only around 10% of the energy is transferred to the next level.
- Question 40: Apex predators are fewer at the top of the food web because energy is lost as heat with each transfer between trophic levels.
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Description
Test your knowledge on human anatomy and systems in this Grade 4 Science periodic test. The quiz covers topics like the skeletal system, muscular support, circulatory functions, and more. Evaluate your understanding of how these systems work together to maintain the body's functions.
