Explanation

• Henry Moseley's famous work in 1913 showed that the chemical properties of elements are a periodic function of their atomic number (Z), not their atomic mass.
• This discovery led to the modern periodic table, where elements are arranged in order of increasing atomic number (Z), rather than atomic mass.

Explanation

• Osmosis is the movement of water molecules from an area of higher water potential (high concentration of water molecules) to an area of lower water potential (low concentration of water molecules) through a selectively permeable membrane.
• This process helps to equalize the concentration of water molecules on both sides of the membrane.

Explanation

• Amoeba is a protist, not an animal.
• It belongs to the kingdom Protista, not Animalia.

Explanation

Chlorine (Cl2) is a strong oxidizing agent, which means it can accept electrons from other substances and cause them to be oxidized.

Chlorine is a powerful oxidizer and is often used as a disinfectant or bleach.

Explanation

Chlorine (Cl) is a strong oxidizing agent.

It means it can accept electrons from other substances and cause them to be oxidized.

Explanation

• Phloem is the vascular tissue responsible for transporting organic materials, such as sugars, amino acids, and other nutrients.
• Produced by photosynthesis from the leaves to the rest of the plant, including roots, stems, and fruits.

Explanation

• The correct sequence of biological method is: Hypothesis → Reasoning → Theory → Law

This sequence represents the scientific method in biology, which involves:

• Formulating a hypothesis (a educated guess) to explain a phenomenon
• Using reasoning and logic to develop predictions and test the hypothesis
• Developing a theory (a well-substantiated explanation) based on the results of experiments and observations
• Establishing a law (a universal principle) that describes the phenomenon

Explanation

• Fisheries refer to the industry or practice of catching, breeding, and managing fish and other aquatic organisms.
• Increased quantity and quality of fish production is a result of improvements in fisheries management, aquaculture (fish farming), and fishing technologies.

Explanation

Chloroplasts contain various pigments like chlorophyll, carotenoids, and phycobiliproteins, which absorb light of different wavelengths.

This allows plants to capture a broad spectrum of light energy and use it for photosynthesis.

Explanation

• A substance is a piece of matter in pure form, with a specific composition and properties.
• It can be either an element or a compound.