Science — English

What is the role of the adrenal glands in stress response?
The adrenal glands play a crucial role in the body's stress response by producing hormones such as cortisol and adrenaline....
Added: 12 Apr 2000
Updated: 18 Nov 2025
ℹ️
What is the primary function of the cell nucleus?
The primary function of the cell nucleus is to store and protect the cell's genetic material, which is in the...
Added: 12 Apr 2000
Updated: 26 Nov 2025
ℹ️
What is the term for the scientific study of toxins and their effects?
The scientific study of toxins and their effects is known as toxicology. This field investigates the origins, chemical nature, and...
Added: 12 Apr 2000
Updated: 02 Nov 2025
ℹ️
What is the role of the zygote in sexual reproduction?
The zygote is the initial cell formed when a sperm fertilizes an egg, playing a crucial role in sexual reproduction....
Added: 12 Apr 2000
Updated: 20 Nov 2025
ℹ️
What is the primary source of oxygen for aerobic respiration?
The primary source of oxygen for aerobic respiration is the photosynthesis process carried out by plants and some microorganisms. During...
Added: 12 Apr 2000
Updated: 26 Nov 2025
ℹ️
What is the significance of conducting experiments in scientific research?
Conducting experiments in scientific research is significant as it allows for the testing of hypotheses under controlled conditions. This empirical...
Added: 12 Apr 2000
Updated: 01 Dec 2025
ℹ️
What is the impact of rising sea levels on coastal regions?
The impact of rising sea levels on coastal regions includes increased flooding, loss of habitat, and displacement of human populations....
Added: 12 Apr 2000
Updated: 24 Nov 2025
ℹ️
What is the main mechanism through which energy flows through an ecosystem?
The main mechanism through which energy flows through an ecosystem is via trophic levels, starting with primary producers (plants) that...
Added: 12 Apr 2000
Updated: 11 Nov 2025
ℹ️
What is the importance of the ozone layer for life on Earth?
The ozone layer is crucial for life on Earth as it protects us from harmful ultraviolet (UV) radiation from the...
Added: 12 Apr 2000
Updated: 28 Nov 2025
ℹ️
What is the role of signal transduction pathways in cellular communication?
The role of signal transduction pathways in cellular communication is to transmit signals from the cell surface to its interior,...
Added: 12 Apr 2000
Updated: 09 Nov 2025
ℹ️
What is the significance of keystone species in ecology?
Keystone species are significant in ecology due to their crucial role in maintaining ecosystem structure and biodiversity. These species influence...
Added: 12 Apr 2000
Updated: 16 Nov 2025
ℹ️
What is the effect of human activities on wildlife habitats?
Human activities significantly impact wildlife habitats by causing habitat destruction, pollution, and climate change. Urbanization, agriculture, and logging reduce natural...
Added: 11 Apr 2000
Updated: 21 Nov 2025
ℹ️
What is the primary role of the renal system in maintaining homeostasis?
The primary role of the renal system in maintaining homeostasis is to regulate the composition and volume of bodily fluids....
Added: 11 Apr 2000
Updated: 12 Nov 2025
ℹ️
What is the importance of ion gradients in cellular processes?
Ion gradients are crucial in cellular processes, particularly in maintaining membrane potential and facilitating action potentials in neurons. These gradients,...
Added: 11 Apr 2000
Updated: 09 Nov 2025
ℹ️
What is the relationship between carbon dioxide levels and global warming?
There is a direct relationship between carbon dioxide levels and global warming. Increased CO2 emissions from human activities, such as...
Added: 11 Apr 2000
Updated: 01 Nov 2025
ℹ️
What is the main cellular structure involved in energy metabolism?
The main cellular structure involved in energy metabolism is the mitochondrion. Often referred to as the "powerhouse of the cell,"...
Added: 11 Apr 2000
Updated: 24 Nov 2025
ℹ️
What type of reproductive strategy involves producing many offspring with low parental care?
The type of reproductive strategy that involves producing many offspring with low parental care is known as r-strategy. This strategy...
Added: 11 Apr 2000
Updated: 08 Nov 2025
ℹ️
What is the primary factor influencing natural selection?
The primary factor influencing natural selection is environmental pressures, which include factors such as predation, competition, and available resources. Organisms...
Added: 11 Apr 2000
Updated: 20 Nov 2025
ℹ️
What is the effect of increased deforestation on Earth's atmosphere?
Increased deforestation significantly affects Earth's atmosphere by raising levels of carbon dioxide. Trees play a vital role in absorbing CO2...
Added: 11 Apr 2000
Updated: 09 Nov 2025
ℹ️
What is the primary energy source for organisms at the base of food webs?
The primary energy source for organisms at the base of food webs is the sun. Through the process of photosynthesis,...
Added: 11 Apr 2000
Updated: 07 Nov 2025
ℹ️