Which hormone is responsible for lowering blood glucose levels by promoting cellular uptake of glucose? MCQ with Answer and Explanation

Explanation:
A joint (articulation) is where two or more bones meet, allowing varying degrees of movement. Tendons connect muscle to bone, ligaments bone to bone, cartilage cushions. Joints are classified as fibrous, cartilaginous, or synovial.

Explanation:
Natural selection is the process where organisms with traits better suited to their environment are more likely to survive and reproduce, leading to adaptation of the population over time. Mutations, which are random changes in the DNA sequence, are the ultimate source of all new genetic variation upon which evolutionary forces act. Evolution is a population-level phenomenon, defined as a change in allele frequencies over generations; it does not occur within a single individual's lifetime. Thus, statements 1 and 2 are correct.

Explanation:
Salivary amylase (ptyalin) hydrolyzes starch into maltose and dextrins in the mouth. It functions optimally at neutral to slightly alkaline pH. Pepsin digests proteins in the stomach, lipase digests fats, trypsin is a pancreatic protease. Salivary amylase action ceases in the acidic stomach.