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