The scientist who discovered the antibiotic streptomycin was: MCQ with Answer and Explanation

Explanation:
Blood is classified as a specialized connective tissue because it has cells (RBCs, WBCs, platelets) suspended in a fluid matrix (plasma) and connects different body parts by transporting substances. Connective tissues have cells separated by extracellular matrix. Thus, the reason correctly justifies the assertion. Bone, cartilage, lymph are other connective tissues.

Explanation:
Biotin (vitamin B₇) is a coenzyme for carboxylases, e.g., pyruvate carboxylase, acetyl-CoA carboxylase. It is involved in gluconeogenesis and fatty acid synthesis. Deficiency is rare but can occur with raw egg white consumption.

Explanation:
Growth Hormone (GH), also known as somatotropin, is secreted by the anterior pituitary gland. It stimulates growth, cell reproduction, and cell regeneration, particularly in bones and skeletal muscle. Overproduction in childhood leads to gigantism, while underproduction leads to pituitary dwarfism. TSH, ACTH, and FSH are other anterior pituitary hormones with different target organs.