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