Answer:
Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell.
Answer:
A negative feedback initiated by the external simuli or the products of a reaction aims to reduce the products/ output of the reaction. Hence In negative feedback the stimulus is reduced. An example of a negative feedback would be if a person had an elevated body temperature, the homeostatic response would be to lower the body temperature.
Answer:
D) cardiovascular system, interstitial fluid, lymph, cardiovascular system
Explanation:
1) Fluid drain from cardiovascular system into extracellular spaces bathing and providing the nutrients to cells (Interstitial fluid).
2) The fluid collects the waste products and drains into the lymphatic vessels as lymph.
3) The lymphatic ducts empty into subclavian vein to return to blood circulation.
Answer:a. Retention of five functional digits on the tore and hindimbs
Explanation:
The presence of five digits or pentadactyly on the fingers as well as on the toes makes the primates distinct from other mammals. Also the keratin nails are present on each digit makes these organisms distinct from other mammals.
The five digits on the hindlimbs helps in grip of objects and on toes helps in climbing.
The layer of the sun is in three equally side the sun the moon and the galaxy