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