A) Fresh water B) Estuarine C) Eschew D) Marine
A) Low light penetration B) High salinity C) Presence of high-level oxygen D) Presence of low level oxygen
A) Benthic zone B) Supratidal zone C) Littoral zone D) Meridian zone
A) High concentration of oxygen content B) Variation in temperature C) Low salinity D) Low concentration of oxygen content
A) Etrophication B) Eutropication C) Eutriphication D) Eutrophication
A) Presence of thick barks B) Existence of canopies C) Presence of broad leaves D) Presence of buttress root.
A) Great Britain desert B) Arabian desert C) Kalahari desert D) Great Australian desert
A) Water vapour B) Respiratory medium C) Transportation medium D) Respiratory surface
A) Moist surface B) Thin-walled to shorten diffusion distance and make diffusion easier and faster C) Large surface area to aid easy diffusion of gases D) Small area to aid easy diffusion of gases
A) Gill fume B) Gill arch C) Gill filament D) Gill raker
A) Hormonal secretion B) Glomerulus in the bowman's capsule C) Selective reabsorption D) Ultra filteration
A) Bowman's capsule B) Distal tubule C) Urethra D) Henle's loop
A) War B) Overpopulation C) Poor storage facilities D) Urbanisation
A) Competition B) Decline in the rate of reproduction C) Emigration D) Increased supply of a particular type of food
A) Space B) Water C) Heat D) Parasites
A) Mortality B) Competition C) Light D) Food
A) Limiting factor B) Dispersal C) Environmental resistance D) Balance in nature
A) Prevention of indiscriminate abortion B) Prevention of population explosion C) Increased risk of STDs D) Promotion of maternal and mother's health
A) Endoplasmic reticulum B) Contractile vacuole C) Ribosome D) Cytoplasm
A) Concentration gradient B) Neutralisation C) Homeostasis D) Osmotic pressure balance
A) Camouflage B) Salt-excreting glands C) Water-retaining cells D) Osmoregulation
A) Shallow roots B) Stilt roots C) Deep roots D) No roots
A) Thick cuticle B) Waxy coating C) Salt-excreting glands D) Water-retaining cells
A) Desert zone B) Intertidal zone C) Freshwater zone D) Grassland zone
A) Decreased oxygen delivery to cells B) Increased blood pressure C) Increased efficiency of oxygen delivery to cells D) Decreased heart rate
A) Blood is transported in a closed system of blood vessels B) Blood passes through a heart with four chambers C) Blood is pumped directly to the entire body D) Blood flows from the heart to the gills and then to the rest of the body
A) To transport large molecules B) To store blood C) To exchange oxygen and nutrients with cells D) To regulate blood pressure
A) To transport hormones and growth factors B) To transport water and minerals C) To transport oxygen and carbon dioxide D) To transport sugars and amino acids
A) Leaves B) Stems C) Roots D) Flowers
A) Minerals B) Water C) Amino acids D) Sugars
A) Cambium B) Collenchyma C) Xylem D) Phloem
A) The movement of sugars and amino acids from leaves to roots B) The movement of water and minerals from roots to leaves C) The movement of hormones from shoots to roots D) The movement of oxygen from leaves to roots
A) Root pressure B) Adhesion C) Transpiration pull D) Cohesion
A) Cuticular transpiration B) Lenticular transpiration C) Root transpiration D) Stomata transpiration
A) Translocation B) Photosynthesis C) Respiration D) Evaporation
A) Humidity B) Light C) Water availability D) Temperature
A) The force that repels water from the xylem B) The force that pushes water up the xylem C) The force that pulls water up the xylem D) The force that holds water in the xylem
A) Respiration experiment B) Translocation experiment C) Photosynthesis experiment D) Potometer experiment
A) mL/hr B) mL/min C) mm/sec D) cm3/sec
A) The movement of water from low to high concentration B) The movement of water from low to low concentration C) The movement of water from high to low concentration D) The movement of water from high to high concentration |