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