Science
Control and Coordination
Practice questions
If the amount of a hormone in blood becomes more than needed how does the body usually balance it?Why are plant responses not like the fast nervous responses of animals?If a plant root gets water on one side and light on the other, which tropisms best explain its direction of growth?Which option contains only examples of growth-based plant movements?Which option gives the correct cause of a non-growth-based plant movement?If adrenaline secretion suddenly increases in a person, which change is most logical?Which option best explains the combined importance of the nervous and endocrine systems?Which option correctly changes the wrong statement that plants are only passive?Which option expresses the main idea of the chapter most correctly?If the sensory nerve is normal but the motor nerve is damaged in a reflex arc, what is the most likely result?How does movement of a message from the dendrite towards the axon make a body response organised?Why would stopping the release or action of chemicals at a synapse disturb nervous coordination?Pulling the hand back immediately after touching a hot object and feeling pain later demonstrates what?If a plant root grows towards water even against gravity, which response is more clearly dominant?When light comes from one side, the stem bends towards it. Why does more growth occur on the shaded side?On what basis are the folding of Mimosa leaves and the coiling of tendrils around support different?Why do nervous control and hormonal control together create more effective coordination in the body?Why is adrenaline helpful in sending more blood to muscles during fear?Why can iodine deficiency increase the chance of enlargement of the thyroid gland?Why can damage to the medulla be more dangerous than an ordinary muscle injury?