The endoskeleton of the human body is composed mainly of: MCQ with Answer and Explanation

Explanation:
The uterus (womb) is a muscular organ where the fertilized egg implants in the thickened endometrium and develops into a fetus during pregnancy. The ovaries produce eggs, the fallopian tubes are the site of fertilization, and the vagina is the birth canal. The endometrium is shed during menstruation if no pregnancy occurs.

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:
Bryophytes are non-vascular land plants that include mosses, liverworts, and hornworts. Funaria is a common moss and a classic example of a bryophyte. Spirogyra is a green alga, ferns are pteridophytes (vascular cryptogams), and Pinus is a gymnosperm.