A) Eschew B) Marine C) Estuarine D) Fresh water
A) Presence of low level oxygen B) High salinity C) Low light penetration D) Presence of high-level oxygen
A) Neptunic zone B) Littoral zone C) Supratidal zone D) Benthic zone
A) Low concentration of oxygen content B) Variation in temperature C) High concentration of oxygen content D) Low salinity
A) Eutrophication B) Eutriphication C) Etrophication D) Eutropication
A) Presence of buttress root. B) Presence of thick barks C) Existence of canopies D) Presence of broad leaves
A) Kalahari desert B) Great Australian desert C) Arabian desert D) Great Britain desert
A) Respiratory medium B) Respiratory surface C) Water vapour D) Transportation medium
A) Large surface area to aid easy diffusion of gases B) Moist surface C) Small area to aid easy diffusion of gases D) Thin-walled to shorten diffusion distance and make diffusion easier and faster
A) Gill filament B) Gill raker C) Gill arch D) Gill foam
A) Glomerulus in the bowman's capsule B) Hormonal secretion C) Ultra filteration D) Selective reabsorption
A) Urethra B) Bowman's capsule C) Henle's loop D) Distal tubule
A) Overpopulation B) Urbanisation C) War D) Poor storage facilities
A) Emigration B) Increased supply of a particular type of food C) Competition D) Decline in the rate of reproduction
A) Heat B) Space C) Parasites D) Water
A) Competition B) Food C) Mortality D) Light
A) Dispersal B) Environmental resistance C) Limiting factor D) Balance in nature
A) Increased risk of STDs B) Promotion of maternal and mother's health C) Prevention of indiscriminate abortion D) Prevention of population explosion
A) Endoplasmic reticulum B) Ribosome C) Contractile vacuole D) Cytoplasm
A) Concentration gradient B) Neutralisation C) Osmotic pressure balance D) Homeostasis |