Master Biology with Fun Quizzes & Brain Teasers!

1. Draw arrows indicating the net movement of each material
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Two normal people have a colorblind son.What is the genotype of the dad?What is the genotype of the mom?What is the genotype ratio among their children?What is the phenotype ratio among their children?
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If a period contains many fossils of species that previously weren't found, what type of event most likely took place on Earth?Natural selectionMass extinctionPunctuated evolutionPopulation equilibrium
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Neeeeeeeedd heeeelp with this
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At all levels of life, when related parts interact to form a whole they form a....?
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Deforestation is the cutting down of forests to use as building materials or to clear the land for urban development or farming. Scientists worry that deforestation is one of the leadingcauses of increased C02 in the atmosphere, potentially accelerating global climate change. Which of the following is a valid reason that CO2 in the atmosphere would increase due todeforestation?A.The rate of cellular respiration would increaseB.The rate of decomposition would increaseC.The rate of combustion would decrease.D.The rate of photosynthesis would decrease.
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Which of the following types of evidence would best determine whether the three plant species are recently descended from a common ancestor:a- FLOWERING TIMESb- STEM LENGTHSc- HABITAT DISTRIBUTIONSd-DNA SEQUENCES
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Which of the following statements about homologous chromosomes is true?0000They are matching chromosomes.They have the same genes located at the same location.One of each pair comes from each parent.All of these choices are correct.
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Organisms have many different kinds of cells to do different what?
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What does X on the graph below show? A. Overpopulation B. Predation C. Ecosystem size D. Population density
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What are the most abundant cells in the blood?A. PlasmaB. Red blood cellsC. Muscle cellsD. Amoeboid cells
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Why do people who smokes cigarettes are prone to lung cancer?
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2. A catalyst lowers the activation energy bya. reducing the overall temperature.b. destabilizing bonds in the substrate.c. changing the order of amino acids.d. adding energy to the substrate.e. all of the above.
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How are development (ontogeny) and phylogeny (evolution) related?
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What do acid-base catalysts do?
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Name four ways a pathogen can be transmitted.
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Muddy rivers and streams are signs of a serious problem called:extinctionpollutionerosion
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1. Protists are able to make their own food through photosynthesis.FalseTrue
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Chlorophyll in the chloroplast reflectswhich color on the spectrum of visiblelight?A. greenB. redC. blueD. violet
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HabitatPopulationEcosystemCommunityA) Includes all living things functioning together with the physical factors of their environmentB) A unit of species living in the same geographical areaC) An area occupied by different groups of interacting organismsD) A place in an ecosystem where an organism normally lives
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Why is it beneficial to a snakes survival to be able to fit into a burrow?
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What is a gene?a section of DNA that encodes a specific protein**********a large molecule that performs a specific functiona point that joins two halves of a chromosomea structure that contains many chromosomes
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The enzyme called Pheide a Oxygenase (PAO) catalyses the degradation of chlorophyll. Mendels I gene (yellow peas) codes for this enzyme. If this gene is mutated, what will happen to the pea colour?
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A catabolic reaction is one in which large molecules are broken down into smaller molecules.TrueFalse
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