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