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