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Name an insectivorous angiosperm.

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(i) Dischidia
(ii) Utricularia
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Pls answer hypothisis questions a and b in detail. Pls PLS I BEG PLS. INVESTIGATION9.1.2 Inquiry Skills Questioning O Planning Hypothesizing Conducting Predicting Recording Reflex Arcs O Analyzing Evaluating Communicating Reflex arcs make up the neural circuit that travels through the spinal cord, providing a framework for reflex actions. Simple physical tests are used to check reflexes. In this inves tigation, you will observe the presence and strength of a number of reflex arcs. Part III:Babinski Reflex 7. Now ask the subject to remove a sock. Have the sub- ject sit in a chair, then place the heel of the bare foot on another chair for support. Quickly slide the reflex hammer along the sole of the subject's foot, begin- Question ning at the heel and moving toward the toes. What is the advantage of being able to test different reflexes?/1 (f) Describe the movement of the toes. /4 Hypothesis Part IV:Pupillary Reflex (a) Using what you know about reflexes, predict what 8. Have the subject close one eye for approximately 1 will happen in each part of the procedure. min. Ask him or her to open the closed eye. Compare (b) Formulate a hypothesis to explain your predictions the size of the pupils. What criteria did you use to make your prediction? /1 (g) Which pupil is larger? 9. Ask the subject to close both eyes for one min, then Materials open both eyes. Shine a penlight in 1 of the eyes. rubber reflex hammer penlight /1 (h) Describe the changes you observe in the pupil. 10. Select a student with light-coloured eyes to be the Procedure subject. With at least two observers carefully watching Part I:Knee Jerk the subject's eyes, gently stroke the fine hairs on the 1. Find a partner. You will act as each others subjects. nape of the subject's neck. 2. Have your subject sit on a chair with his or her legs /1 (i) Describe any change in the pupils of the subject. crossed. The subject's upper leg should remain Analysis relaxed. /4 (j) From your observations, formulate a hypothesis 3. Locate the position of the kneecap and find the large about the sequence of events that occur in the tendon below the midline of the kneecap. nervous system in each part of the procedure. 4. Using a reflex hammer, gently strike the tendon below /3 (k) How does the knee-jerk reflex change when the subject the kneecap. is clenching the book? Why do you think this is? /1 (c) Describe the movement of the leg. /3 (l) What is the purpose of testing different reflexes? 5. Ask the subject to clench a book with both hands. then strike the tendon of the upper leg once again. Evaluation and Synthesis /1 (d) Compare the movement of the leg while the subject is /3 (m) Explain why the knee-jerk and Achilles reflexes are clenching the book with the movement in the pre- important in walking. vious procedure. /4 (n) A person touches a stove, withdraws his or her hand, and then yells. Why does the yelling occur after the Part IlAchilles Reflex hand is withdrawn? Does the person become aware of 6. Have the subject remove a shoe. Ask your subject to the pain before the hand is withdrawn? kneel on a chair so that his or her feet hang over the /3 (o) While examining the victim of a serious car accident, edge of the chair. Push the toes toward the legs of the a physician lightly pokes the patient's leg with a chair and then lightly tap the Achilles tendon with the needle. The pokes begin near the ankle and gradually reflex hammer. progress toward the knee. Why is the physician /1e) Describe the movement of the foot. poking the patient? Why begin near the foot? 452 Chapter9 NEL
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Question Text
Name an insectivorous angiosperm.
TopicMineral Nutrition
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes121