Science — English

What structure in cells is responsible for modifying proteins after synthesis?
The structure in cells responsible for modifying proteins after synthesis is the Golgi apparatus. This organelle processes, sorts, and packages...
Added: 15 Apr 2000
Updated: 11 Nov 2025
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What is the purpose of the backbone in vertebrates?
The purpose of the backbone in vertebrates is to provide structural support and protection for the spinal cord. Comprised of...
Added: 15 Apr 2000
Updated: 23 Nov 2025
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What is the fundamental difference between aerobic and anaerobic respiration?
The fundamental difference between aerobic and anaerobic respiration lies in oxygen usage. Aerobic respiration requires oxygen to produce energy and...
Added: 15 Apr 2000
Updated: 30 Nov 2025
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What is the primary way that energy is transferred through an ecosystem?
Energy is primarily transferred through an ecosystem via food chains and food webs. Producers, such as plants, convert solar energy...
Added: 15 Apr 2000
Updated: 03 Nov 2025
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How do physical barriers contribute to the evolution of species?
Physical barriers contribute to the evolution of species by isolating populations, leading to speciation. Geographic features like mountains, rivers, or...
Added: 15 Apr 2000
Updated: 03 Nov 2025
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What is the term for an organism that derives energy from dead and decaying matter?
An organism that derives energy from dead and decaying matter is termed a decomposer. Decomposers, such as certain bacteria and...
Added: 15 Apr 2000
Updated: 02 Nov 2025
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What is the role of the mesophyll layer in leaves?
The role of the mesophyll layer in leaves is fundamental to the process of photosynthesis. This tissue contains chloroplasts, which...
Added: 15 Apr 2000
Updated: 06 Nov 2025
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What is the importance of nitrogen in agricultural practices?
The importance of nitrogen in agricultural practices cannot be overstated, as it is a vital nutrient for plant growth. Nitrogen...
Added: 15 Apr 2000
Updated: 09 Nov 2025
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What is the function of the pineal gland in vertebrates?
The function of the pineal gland in vertebrates primarily involves the secretion of melatonin, a hormone that regulates sleep-wake cycles....
Added: 15 Apr 2000
Updated: 19 Nov 2025
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What is the basis for the scientific classification system of organisms?
The basis for the scientific classification system of organisms is the hierarchical structure known as taxonomy. Taxonomy categorizes living organisms...
Added: 14 Apr 2000
Updated: 26 Nov 2025
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What kind of transformation occurs during cellular respiration?
A kind of transformation that occurs during cellular respiration is the conversion of glucose into energy (ATP). This metabolic process...
Added: 14 Apr 2000
Updated: 04 Nov 2025
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What essential nutrient do plants absorb from the soil?
The essential nutrient that plants absorb from the soil is nitrogen. Nitrogen is a critical component of key organic molecules,...
Added: 14 Apr 2000
Updated: 08 Nov 2025
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What is the effect of osmosis on plant cells?
The effect of osmosis on plant cells is significant, as it helps maintain turgor pressure. When plant cells are placed...
Added: 14 Apr 2000
Updated: 07 Nov 2025
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What are two examples of renewable energy sources?
Two examples of renewable energy sources are solar energy and wind energy. Solar energy harnesses the power of the sun's...
Added: 14 Apr 2000
Updated: 29 Nov 2025
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What is the chemical reaction called where one compound is transformed into another?
The chemical reaction where one compound is transformed into another is known as a chemical reaction. This occurs when reactants...
Added: 14 Apr 2000
Updated: 07 Nov 2025
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What is the role of the frontal lobe in the human brain?
The role of the frontal lobe in the human brain is multifaceted, primarily involved in higher cognitive functions. This includes...
Added: 14 Apr 2000
Updated: 02 Nov 2025
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What is the term used to describe the average kinetic energy of particles?
The term used to describe the average kinetic energy of particles in a substance is temperature. It reflects how fast...
Added: 14 Apr 2000
Updated: 08 Nov 2025
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What is a key characteristic of organisms classified as prokaryotes?
A key characteristic of organisms classified as prokaryotes is that they are unicellular and lack a defined nucleus. Instead of...
Added: 14 Apr 2000
Updated: 15 Nov 2025
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What is the ecological impact of invasive species?
The ecological impact of invasive species can be profound and detrimental. These species often outcompete native organisms for resources, leading...
Added: 14 Apr 2000
Updated: 14 Nov 2025
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What is the structure that carries oxygen-rich blood away from the heart?
The structure that carries oxygen-rich blood away from the heart is the aorta. As the largest artery in the body,...
Added: 14 Apr 2000
Updated: 22 Nov 2025
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