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