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