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