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