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