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