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