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