Biology MCQs
Biology MCQs Test Preparation | Latest 2025 Quiz FPSC, NTS, KPPSC, PPSC, SPSC, BPSC, OTS, UTS, PTS, CTS, ATS, ETEA MCQs Test Questions.
Circular disc shaped structure with a round hole is ___________ ?
A: Iris
B: Pupil
C: Horoid coat
D: Ciliary body
Iris
The higher animals have special organs for exchange of gases as their skin is ___________ ?
A: Thin
B: Thick
C: Soft
D: Hard
Thick
Dorsal root of spinal nerves contain only __________ ?
A: A. Effectors neurons
B: Receptor neurons
C: Stimulators
D: Detector neurons
Receptor neurons
Study of interaction of living organisms with other organisms and their environment relates with ___________ ?
A: A. Botany
B: Ecology
C: Social biology
D: Pharmacology
Ecology
__________is a condition in which there is an absence of oxygen supply to an organs tissues?
A: Anoxia
B: Anorexia
C: Hypoxia
D: Enuresis
Anoxia
Guard cells of stoma are ________ ?
A: Irregular in shape
B: Convex in shape
C: Long and cylindrical in shape
D: Kidney-shaped
Kidney-shaped
Special kind of protein containing iron is called as _________ ?
A: Hormones
B: Hemoglobin
C: Red blood cell
D: White blood cell
Hemoglobin
Zygote with three copies chromosome 21, is known to cause _________?
A: Hay fever
B: Scurvy
C: Parkinson Disease
D: Downs syndrome
Downs syndrome