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