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