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