A) Snake B) Grass C) Frog D) Grasshopper
A) The sun B) Soil nutrients C) Decomposers D) Water
A) Combustion B) Respiration C) Photosynthesis D) Decomposition
A) The total mass of living or previously living organisms in a given area or trophic level B) The volume of water in an ecosystem C) The number of organisms only D) The amount of sunlight absorbed
A) Predators to prey B) The consumer to the producer C) The organism being eaten to the organism that eats it D) Decomposers to the sun
A) Decomposers B) Herbivores C) Autotrophs D) Producers
A) Primary consumers B) Producers C) Top carnivores D) Decomposers
A) Secondary consumer B) Tertiary consumer C) Primary consumers D) Producers
A) Energy moving upward only B) Many interconnected feeding relationships C) Only one predator and one prey D) Only producers
A) Nitrogen fixation B) Combustion C) Evapotranspiration D) Denitrification
A) The upper atmosphere B) Ozone C) Rocks, soil, water and living organisms D) Sunlight
A) Have no leaves B) Remain underwater C) Lose leaves in autumn D) Grow only in deserts
A) Tundra B) Lake C) Taiga D) Estuary
A) Dessert B) Tundra C) Taiga D) Grassland
A) Coral reef B) Dessert C) Wetland D) Taiga
A) Freshwater-ocean B) Terrestrial- estuary C) Freshwater-desert D) Marine-coral reef
A) Condensation B) Transpiration C) Percolation D) Runoff
A) Nitrogen fixation B) Evaporation C) Photosynthesis D) Cellular respiration
A) Consumers B) Predators C) Decomposers D) Producers
A) A deep ocean zone B) A freshwater marsh C) A dry shrubland with tough-leaved plants D) A polar ice sheet
A) Eight B) Four C) Twenty D) Two
A) Forest and grassland B) Freshwater and marine C) Tundra and deserts D) Terrestrial and aerial
A) Freshwater biome B) Marine biome C) Coral reef D) Estuary
A) Tundra B) Estuary C) Taiga D) Grassland
A) Playing the piano B) Having a scar from an injury C) Reading a book D) Having attached earlobes
A) Garden pea plants B) Fruit flies C) Honeybees D) Mice
A) Trait B) Genotype C) Locus D) Allele
A) None of the choices B) bb C) Bb D) BB
A) Louis pasteur B) Watson and crick C) Charles Darwin D) Gregor Mendel
A) To isolate specific DNA fragments. B) To predict the dynamic probability of genotypes and phenotypes in offspring. C) To calculate the exact lifespan of an animal. D) To sequence an organism's whole genome.
A) 4 traits B) 1 traits C) 2 traits D) 8 traits
A) Recessive trait B) Acquired traits C) Inherited traits D) Dominant mutation
A) 25% B) 0% C) 75% D) 100%
A) Cloning B) Variation C) Pure-breeding D) Heredity
A) Factors B) DNA C) Genes D) Chromosomes
A) Alleles for different traits segregate independently during gamete formation. B) Homologous chromosomes never separate. C) Dominant alleles always mask recessive alleles. D) Traits blend together in the offspring.
A) bb B) Bbb C) BB D) Bb
A) Posture and movement B) Hormone balance C) Nutrients absorption D) Gas exchange
A) Hormones B) Enzymes C) Nerves D) Muscle
A) Heart B) Skin only C) Lungs or gills D) Kidneys
A) Thyroid and pituitary B) Hearts and lungs C) Skin and nails D) Kidneys and bladder
A) Absorbing nutrients B) Storing fat C) Sending signals D) Producing enzymes
A) Hormone regulation B) Immunity C) Clothing D) Oxygen transport
A) Absorbing sunlight B) Photosynthesis C) Consuming other organisms D) Producing chlorophyll
A) Hormone regulation B) Circulation C) Protection and sensing D) Digestion
A) Unicellular prokaryotes B) Multicellular eukaryotes C) Autotrophic organisms D) Photosynthetic organisms
A) Infections B) Hormone imbalance C) Digestion problems D) Bone fractures
A) Movement and response B) Circulation C) Photosynthesis D) Reproduction
A) Cell - organs - tissue - organs system - organisms B) Cell - tissue - organs - organs system - organisms C) Tissues - cells - organs - organs system - organisms D) Organs - tissue - cells - organs system - organisms
A) Nervous system B) Endocrine system C) Skeletal system D) Muscular system
A) Medulla oblongata B) Cerebellum C) Hypothalamus D) Cerebrum
A) Blood and blood vessels B) Kidneys and bladder C) Muscle and bones D) Lungs and trachea
A) Hormone balance B) Homeostasis C) Excretion D) Digestion
A) Oxygen B) Hormones C) Blood D) Nutrients
A) Left atrium B) Left ventricle C) Right atrium D) Right ventricle
A) Nutrients B) Hormones C) Carbon dioxide D) Oxygen
A) Epithelial B) Nervous C) Muscle D) Connective
A) Immunity B) Oxygen transport C) Clothing D) Hormone regulation
A) Colloid B) Solution C) Suspension D) Pure substance
A) Suspension B) Pure substance C) Solution D) Mixture
A) Colloid B) Suspension C) Pure substance D) Solution
A) Suspension B) Element C) Mixture D) Compound
A) Compound B) Solution C) Element D) Mixture
A) Solution B) Homologous mixture C) Heterogeneous mixture D) Pure substance
A) Colloid B) Solution C) Pure substance D) Suspension
A) Homologous mixture B) Heterogeneous mixture C) Pure substance D) Compound
A) Evaporation B) Chromatography C) Filtration D) Distillation
A) Heterogeneous mixture B) Element C) Homologous mixture D) Compound
A) Compound B) Heterogeneous mixture C) Homologous mixture D) Element
A) Mixture B) Element C) Pure substance D) Compound
A) Pure substance B) Heterogeneous mixture C) Suspension D) Homologous mixture
A) Evaporation B) Magnet C) Filtration D) Distillation
A) Colloid B) Element C) Mixture D) Compound |