In the five-kingdom classification, which kingdom includes organisms that are eukaryotic, multicellular, and obtain nutrition by absorption? MCQ with Answer and Explanation

Explanation:
A food chain represents the flow of energy and nutrients. The first trophic level is always occupied by producers (autotrophs), primarily green plants and algae, which convert solar energy into chemical energy via photosynthesis. The second level is primary consumers (herbivores), the third is secondary consumers (carnivores), and so on.

Explanation:
DNA fingerprinting analyzes unique patterns in an individual's DNA (VNTRs) and is widely used in forensics for identifying criminals or establishing paternity. Human insulin (Humulin) was the first genetically engineered therapeutic protein, produced in E. coli in 1982. Bt brinjal is genetically modified to express Bt toxin for resistance against specific insect pests (like the fruit and shoot borer), not herbicides. Thus, statements 1 and 2 are correct.

Explanation:
Riboflavin (vitamin B₂) is the precursor of flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD), which are electron carriers in redox reactions. Thiamine is TPP, niacin NAD/NADP, pantothenic acid CoA.