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