The cell membrane regulates the entry and exit of substances, maintaining homeostasis within the cell.

The large intestine is responsible for the formation of feces and the absorption of water.

The lymphatic system helps to remove excess fluid from tissues, returning it to the bloodstream and playing a role in immune function.

Making laws is one of the primary functions of the Parliament.

The primary function of the respiratory system is gas exchange, allowing oxygen to enter the bloodstream and carbon dioxide to be expelled.

The stomach secretes hydrochloric acid, which aids in digestion and creates an acidic environment for enzymes.

The United Nations Economic and Social Council (ECOSOC) is responsible for promoting social and economic development.

Promoting the spirit of common brotherhood among all the people of India is a Fundamental Duty under Article 51A.

Promoting harmony and the spirit of common brotherhood is one of the fundamental duties listed in Article 51A of the Constitution.

The electromagnetic force is one of the four fundamental forces in nature, alongside gravitational, strong nuclear, and weak nuclear forces.

Mass is a fundamental quantity in the SI system.

Bt cotton is a genetically modified crop that has been engineered to express a bacterial protein that is toxic to certain pests.

Copper is a good conductor of heat.

Using a pointer or finger can help improve reading speed by guiding the eyes along the text.

Carbon dioxide is a greenhouse gas that contributes to the greenhouse effect and global warming.

Lead is a heavy metal that can accumulate in the environment and is toxic to living organisms.

Lead is a heavy metal that poses significant environmental and health hazards.

Hydrogen sulfide (H2S) acts as a reducing agent.

Water (H2O) is a compound that contains hydrogen.

Acetone (CH3COCH3) is a ketone.

Income inequality remains a significant challenge to achieving inclusive growth, as it hampers equitable access to resources and opportunities.

All of the options listed are key components of disaster preparedness, as they contribute to a comprehensive approach to managing disasters.

The Modern Synthesis integrates natural selection with Mendelian genetics, providing a comprehensive explanation of evolution.

All of the options listed are key ethical concerns associated with modern biotechnology, including food security, biodiversity loss, and intellectual property rights.

In a market economy, consumer preferences and demand are key factors in determining resource allocation, thus option 1 is correct.

The passage identifies deforestation as a significant factor contributing to climate change.

On-demand self-service is a key feature of cloud computing, allowing users to access resources as needed without human intervention.

The Companies Act, 2013 mandates that certain companies must spend a minimum percentage of their profits on social welfare activities, which can include contributions to NGOs.

GST is designed as a single tax on the supply of goods and services, simplifying the tax structure.

The primary function of the UN Security Council is to maintain international peace and security.