HEREDITY AND EVOLUTION
Two siblings have the same biological parents but show differences in their physical characteristics. Which process during meiosis contributes to these variations?
Crossing over
A cell breaks down one glucose molecule into two pyruvate molecules and gains a net of two ATP molecules. Identify the process.
Glycolysis
A generator produces electricity when a magnet rotates near a conductor. Which scientific principle explains this phenomenon?
Electromagnetic induction.
A student experiences constant anxiety due to academic competition and pressure to perform. Identify the factor disturbing their social health.
Mental stress.
What are the living components of an ecosystem called?
Biotic components
A bird's wing and a butterfly's wing perform the same function but have different basic structures. Identify these organs.
Analogous organs
A runner experiences muscle cramps after intense exercise due to the accumulation of a particular substance. Identify it.
Lactic Acid
In a thermal power plant, why is steam directed towards a turbine?
To convert steam's kinetic energy into mechanical energy.
A person is injured during taking a selfie what is that called.
Selfiicide
Name the three levels of biodiversity.
Genetic diversity, species diversity and ecosystem diversity.
The forelimbs of humans, whales and oxen have similar bone arrangements but perform different functions. What does this suggest about their evolutionary history?
Common ancestry.
A yeast cell continues releasing energy when oxygen is unavailable. Which two products are formed during its fermentation process?
Alcohol + Carbon Dioxide
In a nuclear reactor, Uranium-235 absorbs a neutron and becomes unstable before splitting into smaller nuclei. What is this process called?
Nuclear fission.
A person creates a fake social media account to harass another individual. Identify the type of crime.
Cybercrime
Which movement involved Amrita Devi Bishnoi and 363 villagers hugging trees?
Chipko Movement of Bishnoi.
A sudden change in the DNA of an organism produces a new characteristic that improves its chances of survival. Name the genetic event responsible.
Mutation
Bunch of bananas is which phase
Anaphase
Which fuel is commonly used in thermal power plants?
Coal
Which Act was introduced to curb cybercrime in India?
IT Act, 2000.
What are forests conserved in the name of God called?
Sacred groves.
Who proposed the theory of natural selection?
Charles Darwin
Why the Krebs Cycle is also called the Citric Acid Cycle
Because Citric Acid is the first stable product formed in the Krebs Cycle
A thermal power plant releases large quantities of carbon dioxide and sulphur oxides. Identify one environmental consequence of these emissions.
Global warming (CO₂) / Air pollution (SOₓ).
What is dependence on harmful substances called?
Addiction
In a paddy field ecosystem, grasshoppers feed on crops, frogs feed on grasshoppers, and snakes feed on frogs. Identify the primary consumers.
Grasshoppers.