Explanation

The final step of the scientific method is developing a conclusion.

It involves summarizing the findings, interpreting the data, and determining whether the hypothesis was supported or rejected.

The scientific method steps in order:

• Observation
• Hypothesis
• Prediction
• Research
• Experimentation
• Data Analysis
• Conclusion

Explanation

Alpha (α) radiation consists of heavy, positively charged particles (alpha particles) that are emitted from the nucleus of an atom during certain types of radioactive decay.

Alpha particles are highly ionizing, meaning they can efficiently remove tightly bound electrons from atoms, resulting in the formation of ions.

Explanation

The Boolean expression for an OR gate is A + B, where A and B are the inputs.

This expression reads "A or B".

In Boolean algebra, the OR operation is represented by a plus sign (+) or a logical disjunction symbol (∨).

So, the expression A + B or A ∨ B represents the OR operation.

Explanation

Preservatives are used to prevent the growth of microorganisms, such as bacteria, yeast, and mold, in food.

They help to extend the shelf life of food products and prevent spoilage.

Preservatives can be found in meats, dairy products, baked goods, and beverages.

Explanation

Inheritance refers to the transmission of traits or characteristics from parents to offspring through the passing down of genetic information.

It's the process by which genetic traits are inherited.

Explanation

The autonomic nervous system (ANS), also known as the visceral nervous system.

It regulates involuntary vital functions essential for survival, such as:

• Heart rate
• Blood pressure
• Respiration
• Digestion
• Body temperature
• Pupil dilation and constriction

Explanation

Condensing is the process by which a gas changes state to become a liquid.

This occurs when the temperature and pressure of the gas are reduced to the point where the molecules slow down and come together to form a liquid.

Key Points:

• Melting is the process where a solid becomes a liquid.
• Freezing is the process where a liquid becomes a solid.
• Boiling is the process where a liquid becomes a gas.

Explanation

Vector quantities are physical quantities that have both magnitude (amount or size) and direction.

Examples of vector quantities include:

• Displacement
• Velocity
• Acceleration
• Force
• Momentum

Explanation

In an electrochemical cell, reduction occurs at the cathode (positive electrode), where electrons are gained by the oxidized species, causing it to be reduced.

Meanwhile, oxidation occurs at the anode (negative electrode), where electrons are lost by the reduced species, causing it to be oxidized.

Explanation

• The sequence of physiological changes by which a cell commits suicide is called apoptosis.
• This is a controlled, programmed cell death process that is crucial for maintaining healthy tissue function and development.