Master Biology with Fun Quizzes & Brain Teasers!

Finally, look at the Punnett square again and write the numbers of offspring with each phenotype.
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26. Mendel took the pollen from a tall pea plant and pollinated the flower of ashort pea plant. When he did this, he removed the male parts of the flower onthe short plant. Why was it important that he remove the male parts from theflower of the short plant?A. because he wanted to prevent self-pollinationB. because the short plant was heterozygousC. because he wanted to prevent the development of seeds
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Stuff about plants that I forgot The options for the first sentence is carbon dioxide oxygen and waterAnd for the second its the same options
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1. What was Hans Molischs hypothesis? Why did he leave the leaf in the dark for two days? 2. Why was the leaf boiled in alcohol? 3. Why was iodine used?
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Defense mechanisms are commonly used when? A. an individual feels unable to deal with a situation. B. an individual feels comfortable dealing with a situation. C. an individual feels happy or content with a situation. D. an individual feels able to deal with a situation.
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The adaptive structure and function of leaves and stems helps the plantQuestion options:create its own energy.produce diploid gametes.produce haploid gametes.prevent wilting.
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Using the text and image above, in addition to what you know about enzymes and substrates as evidence, explain how a mutated PAH enzyme could lead to PKU. Group of answer choicesA) Mutated PAH has folds differently than wildtype and cant add OH to phenylalanine as well as wild type. Phenylalanine doesnt get converted to tyrosine.B) Mutated PAH has folds exactly the same as a wildtype and can add OH to phenylalanine as well as wild type. Phenylalanine does get converted to tyrosine.C) Mutated PAH has folds exactly the same as a wildtype and cant add OH to phenylalanine as well as wild type. Phenylalanine does get converted to tyrosine.D) Mutated PAH has folds exactly the same as a wildtype and cant add OH to phenylalanine as well as wild type. Phenylalanine doesnt get converted to tyrosine.
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Draw the structure of a primary protein molecule.
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I need help with ecosystems!which of the following are characteristics of a temperate broadleaf forest? (select all that apply)A. They experience all four seasonsB. They contain mainly coniferous treesC. They are very dry and recieve little or no rain waterD. They can be found along the Atlantic coast of the united states
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When CO2 levels are low and O2 levels are high, a process called photo respiration makes it so that photosynthesis is inefficient because RuBisCO will add.And why is it not A.
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What are the functions of the parts that are labeled on the seed
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How can living in a rural area help the overall environment, and the ecosystem around us? Any pros to living in a rural area?
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We humans need to make fundamental changes to save our future generations from living in peril, filth, and uncleanliness caused by plastic waste. What are these fundamental changes stated above? ^ explain
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if the statement is true write true, if it is false, change the underlined word or words to make the statement true. Flowering plants that complete a life cycle within one growing season are perennials.Perennials is what you are going to be determining if it is true or false. If it is not please state what would make it true.`
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Banded iron formations show us when:A. rocks were first formed on earthB. the oceans began forming on earthC. oxygen became plentiful on earthD. volcanic activity started on earth
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What is the inheritance pattern (dominant/recessive)?
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3.Imagine a world where there were no more bees. What might happen if this came true? How would your life be different?
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how can a point mutation impact and organism
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Which choice describes a role played by proteins in an organism?O The plasma membranes of cells are composed of these molecules.O Cytotoxins from a snake's venom break down the cells of its prey.O Electrical signals are transmitted across neurons.O Plants store energy in starch and sugars.
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How does road construction in general affect nature/the ecosystem?
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Question 6 of 10A state government is trying to decide between using biomass or nuclearpower to generate electricity. What advantage does biomass have overnuclear power?A. Biomass produces no radioactive waste.O B. Biomass releases less carbon dioxide.O C. Biomass does not produce pollution.O D. Biomass is a nonrenewable source.
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What picture shows which kind of cell
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What does it mean that lipids areinsoluble?A. able to mix with waterB. able to transport oxygenC. unable to mix with water
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Dimensional analysis Conversions(Please explain how and why and where you get the answers. I have a test coming soon)Question (1) 14 cm=? mQuestion (2) convert 14mm to mQuestion (3) convert 35 kg to gQuestion (4) convert 15.9mm to kmQuestion (5) 0.0006394km=? mQuestion (6) 4.7 kg=? IbsDimensional analysis (multi dimensional)1. 100 km/hr=? Miles/hr (mph)2. 80.0 mi/hr=? mi/s3. 62.3 mi/hr=? m/s
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