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