IGCSE O Level Biology Practice Test 72

Online Education: Biology Multiple Choice Questions (MCQs) PDF Download - 72

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Online Education: Biology MCQ Quiz with Answers PDF Download: Test 72

MCQ 356:

In leaves of grasses and maize

midrib is absent
petiole is absent
lamina is absent
leaf base is absent

MCQ 357:

Pain and touch receptors are found in

dermis
epidermis
hypodermis
all of above

MCQ 358:

In hypothalamus, activation of heat gain center results in

vasodilation
rapid breathing
lower metabolic activity
loss of less latent heat

MCQ 359:

The purpose of the sphincter muscle is to

allow the urine to flow in ureter
hold urine in bladder
relax and allow the urine to flow
connect urine to urethra

MCQ 360:

Veins do not require thick walls

as they do not have to work harder
they are required only occasionally
the blood pressure declines while it gets to veins
the blood pressures is immense

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