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