Biology MCQS

261. A series of hypotheses supported by the results of many tests are called?
(A) Scientific law
(B) Theory)
(C) Data
(D) Deduction

262. Which are the four most abundant elements in living cells?
(A) Carbon, oxygen, hydrogen, nitrogen)
(B) Carbon, oxygen, nitrogen, sulfur
(C) Carbon, oxygen, sulfur, phosphorus
(D) Carbon, sulfur, hydrogen, magnesium

263. Which one is not correct for a productive theory?
(A) It is predictive
(B) It has explanatory power
(C) It discourages the suggestion of different hypotheses.)
(D) None of these

264. How many bones make our skull?
(A) 12
(B) 22)
(C) 14
(D) 24

265. The disorders in which there is an accumulation of uric acid in joints are:
(A) Rheumatoid arthritis
(B) Gout)
(C) Osteoporosis
(D) Osteo-arthritis

266. Insulin and glucagon are produced in the:
(A) Liver
(B) Pancreas)
(C) Anterior pituitary
(D) Hypothalamus

267. The portion of the nervous system that is involuntary in action:
(A) Autonomic nervous system)
(B) Somatic nervous system
(C) Sensory nervous system
(D) Motor nervous system

268. Processes that carry nerve impulses away from the cell body are called:
(A) Synapses
(B) Myelin sheath
(C) Dendrites
(D) Axons)

269. __ is responsible for transporting food substance throughout the plant body.
(A) Xylem
(B) Cortex
(C) Endodermis
(D) Phloem)

270. Deficiency of iron causes?
(A) Goiter
(B) Anaemia)
(C) Obesity
(D) Constipation