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