Science- Biology- Control and Coordination

a response ✘ a stimulus ✘ an impulse ✘ an effector ✔

muscle --> brain --> receptor ✘ muscle --> spinal cord --> receptor ✘ receptor --> brain --> muscles ✘ receptor --> spinal cord --> muscle ✔

Nervous and Skeletal ✘ Muscular and Skeletal ✘ Muscular and Transport ✘ Nervous and Muscular ✔

Axon ✘ Dendrite ✘ Cyton ✘ Nerve endings ✔

Testes ✘ Adrenal ✘ Pituitary ✘ Ovary ✔

Thyroxine ✘ Testosterone ✘ Oestrogen ✘ Insulin ✔

Oestrogen from testes and testosterone from ovar. ✘ Estrogen from adrenal gland and testosterone from pituitary gland. ✘ Testosterone from testes and estrogen from ovary. ✘ Testosterone from thyroid gland and estrogen from pituitary gland. ✔

Pituitary gland ✘ Thyroid ✘ Hypothalamus ✘ Adrenal ✔

Thyroid gland requires iodine to synthesize thyroxin. ✘ Thyroxin is also called thyroid hormone. ✘ It regulates protein, carbohydrates and fat metabolism in the body. ✘ Iron is essential for the synthesis of thyroxin. ✔

Pancreas ✘ Thyroid ✘ Adrenal ✘ Liver ✔