The dead element present in the phloem is

Correct Answer: B

Rationale: Phloem is a complex permanent tissue to conduct organic food from leaves to different parts of plants. Phloem fibres are dead.

Correct Answer: B

Rationale: Mesenchyme, an embryonic connective tissue, persists in adults as a source of new connective tissue cells.

Correct Answer: A

Rationale: A neutral atom has equal numbers of protons (positive) and electrons (negative) to balance charge.

Correct Answer: B

Rationale: Anabolic reactions build molecules (synthesis), requiring energy, unlike catabolic decomposition.

Correct Answer: B

Rationale: Nucleotides (DNA/RNA) have a phosphate, sugar, and base, but not an amino group (found in amino acids).