The structure that is the site of fertilization in flowering plants is the: MCQ with Answer and Explanation

Explanation:
In humans, the intermediate lobe of the pituitary is rudimentary, and most Melanocyte-Stimulating Hormone (MSH) is produced in the anterior lobe (pars distalis). It is not synthesized as a separate hormone but is derived from the proteolytic cleavage of a large precursor polypeptide called pro-opiomelanocortin (POMC). POMC is cleaved to produce several biologically active peptides, including Adrenocorticotropic Hormone (ACTH), beta-lipotropin, beta-endorphin, and various forms of MSH (alpha, beta, gamma).

Explanation:
The corpus luteum, formed from the ruptured follicle after ovulation, secretes progesterone (and some estrogen) which prepares the endometrium for implantation and maintains early pregnancy until the placenta takes over (around 8-10 weeks). hCG, produced by the placenta, maintains the corpus luteum. Progesterone is crucial for maintaining the uterine lining.

Explanation:
Vitamins A, D, E, and K are fat-soluble vitamins, meaning they are absorbed along with fats in the diet and can be stored in the body's fatty tissue and liver. Vitamin C and the B-complex vitamins are water-soluble, meaning they dissolve in water and are not stored in significant amounts. Vitamin D deficiency causes rickets in children and osteomalacia in adults; scurvy is caused by Vitamin C deficiency. Thus, statements 1 and 2 are correct.