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