The plant response to touch, such as the closing of Mimosa pudica leaves, is: MCQ with Answer and Explanation

Explanation:
A simple fruit develops from a single ovary of a single flower, which may be a single carpel or fused carpels (e.g., tomato, peach). Aggregate fruits develop from separate carpels of one flower (e.g., strawberry). Multiple fruits from many flowers (e.g., pineapple).

Explanation:
Vitamin B6, in its active form pyridoxal phosphate (PLP), is a crucial water-soluble coenzyme involved in over 100 enzymatic reactions, primarily in amino acid metabolism (transamination, decarboxylation) and fatty acid metabolism. It is also essential for neurotransmitter synthesis and hemoglobin formation. Vitamins A, D, and K are fat-soluble vitamins. Exam tip: B-complex and C are water-soluble; A, D, E, K are fat-soluble.

Explanation:
Meiosis is characterized by two successive divisions producing haploid gametes, and involves genetic recombination through crossing over during prophase I. Mitosis produces identical diploid cells with one division. Crossing over and independent assortment generate genetic variation. Therefore, crossing over is unique to meiosis.