Sodium (Na) is an alkali metal, while Magnesium (Mg), Calcium (Ca), and Barium (Ba) are alkaline earth metals.

Calcium is a member of the alkaline earth metals, which are found in Group 2 of the periodic table.

Iron is classified as a micronutrient, required in smaller amounts compared to macronutrients.

Calcium is classified as a secondary macronutrient, important for cell wall structure and stability.

Aluminium commonly forms a stable +3 oxidation state in its compounds.

Tin (Sn) is known for forming a stable +4 oxidation state.

Copper (Cu) is known for its ability to form complex ions due to its d-orbitals.

Aluminum (Al) is not an alkaline earth metal; it is a post-transition metal.

Both amylase and trypsin are enzymes secreted by the pancreas to aid in digestion.

Neodymium is used in making strong permanent magnets, known as neodymium magnets.

The shape of the objects does not affect the gravitational force; only mass and distance do.

The color of the objects does not affect the gravitational force between them.

Soil type does not directly affect the rate of transpiration; however, it can influence water availability.

The length of the specimen does not affect tensile strength; it is an intrinsic property of the material.

Abiotic factors are non-living chemical and physical components of the environment, such as sunlight, temperature, and water.

Alcohols contain the hydroxyl functional group (-OH).

Helium behaves most like an ideal gas due to its low intermolecular forces and small size, making it closer to the ideal gas behavior.

At the same temperature, lighter gases have higher average speeds. Hydrogen (H2) has the lowest molar mass and thus the highest average speed.

The kingdom Animalia includes only multicellular organisms.

Eukarya is characterized by the presence of a true nucleus in its cells.

Bacteria are known for being prokaryotic organisms.

Birds are the only group of animals that possess feathers, which are essential for flight and insulation.

Birds are the only group of animals characterized by the presence of feathers.

Amphibians typically have a three-chambered heart, consisting of two atria and one ventricle.

Echinodermata, such as starfish and sea urchins, possess a unique water vascular system used for locomotion and feeding.

Insects are classified under the kingdom Animalia.

Algae are classified under the kingdom Protista.

Plants have a cell wall made of cellulose, which is a defining characteristic.

Eukarya is the group of organisms that have a true nucleus.

Gymnosperms are known for having seeds, which are not enclosed in fruits.