Biology

what is Spermatogenesis ?
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Which of the following is not a tectonic boundary A) convergent B) divergentC)transform D) sedergent
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Someone please answer ill give you brainliest.
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Which best helps scientists determine the age of fossil
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If sperm contains both x and y chromosomes then who decides the gender. Whether egg chooses which sperm( a sperm carrying x or y chromosomes) has to be fertilized.
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31. Which sequence shows increasing ecologicallevels of organization?A. organism, population, community, ecosystemB. ecosystem, population, organism, communityC. community, ecosystem, population, organismD. population, organism, ecosystem, community
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What signals the end ofthe cell cycle? A. cell death B. Cancer C. Cell division
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Why would a Nonsense mutation be less damaging if it occurred at the end of the gene rather than thebeginning?
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The process of one ecological community gradually changing into another is called:community developmentecological successionO community successionO ecological development
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what are the Seven parts of the water system
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2. Which contains the other, cell membrane or phospholipid?
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Rocks are made of collections of mineral grains that are held together in a firm, solid mass. Rocks are identified primarily by the minerals they contain, their color, and their texture.Based on this passage, you can infer...A. Rocks are classified into three major groupsB. Rocks form from the cooling and hardening of molten rockC. A rock's origin is the way it was formedD. Each type of rock has a distinctive set of mineralsOMG PLSSS HELP ME PLS PLS PLS!!!!!!!
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Which organism is a secondary consumer?a. Bearb. Weaselc. Deerd. Rabbite. Grass
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Fill in the blank below with the vocabulary word that best completes the sentence.Natural selection leads toa process of change in a population over time.DO NE
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During transcription, initiation involves the attachment of RNA polymerase to the promoter and the start of RNA synthesis.Group of answer choicesTrueFalse
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Please give an awesome explanation.Ky answer if you're very good at Science/Biology.Please don't put a link to a website.Explain how competition for food can cause natural selection.
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PLEASE HELP TAKING TEST NOW!!!!!!!!!!!!!! What is the main factor causing the salinity of the Everglades to change? (1 point)O snake populationsO flood control leveesO climate changeO transportation canals
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During photosynthesis in plants, what is the source of the carbon in the glucose sugar molecule(C6H12O6)?Carbon dioxide in the airCarbon monoxide in the airCarbon particles in the soilCarbon particles in water
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GIVING BRAINLIEST AND THE REST OF MY POINTS!!!!!!!How does the location of the heart, lungs, and brain differ in the human body?A) The brain and heart are located in the head while the lungs are located in the chest.B) The brain is located in the head while the heart and lungs are located in the chest.C) The heart is located in the head while the brain and lungs are located in the chest.D) The lungs are located in the head while the heart and brain are located in the chest.
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if you wanted to determine the temperature of a star, which measurement would you make? refraction Doppler shift emission spectrum absorption spectrum (K12 question also its Earth Science)
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suggest why an MRSA infection may have to be treated with many different antibiotics
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which of the following is a matter
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write two examples of consumers tell whether they are herbivores omnivores carnivors or scavengers
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what would never be part of an mRNA strand?
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