Questions and answers by

sam. Williams

Questions (606)

What best describes a cell?(1 point)Responses cells are the basic unit of life cells are the basic unit of life cells are the
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1. Which of the following are examples of Eukaryotic cells?(1 point)Responses plants cells and animal cells plants cells and
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Plants have organs and tissues, just like animals. Which of the following correctly compares the structure and function of stoma
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A student discovers a plastic bag around the leaves of a plant while on a hike. They observe small droplets of water within the
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How do the unique properties of water assist plants in transportation of water through the vascular system?(1 point)Responses
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What type of tissue aids plants in transport of important materials for photosynthesis?(1 point)Responses Vascular Vascular
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What is the effect of a mutation in a DNA sequence prior to transcription?(1 point)Responses Only a positive effect on the
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What is the role of the ribosome in translation?(1 point)Responses To read the code in the mRNA and produce a chain of amino
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Transcription results in _______ and takes place in the ______________.(1 point)Responses a tRNA strand; ribosome a tRNA strand;
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2. DNA is in the form of double helix, with very speicfic ways in which the nitrogenous bases pair. A (adenine) always pairs
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1. Cells contain DNA, which contains the universal genetic code/instructions for all processes in all organisms on Earth. There
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4. You are examining a cell under a microscope. You observe a cell wall and your teacher informs you that the cells were
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3. What do all kingdoms within Eukarya have in common?(1 point)Responses They are all multicellular They are all multicellular
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What are the two main characteristics of Domain Bacteria and Archaea?(1 point)Responses Both are multicellular and prokaryotes
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1. What are the three domains (the broadest groups in classifying organisms)?(1 point)Responses Bacteria, Archaea, and Eukarya
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How does biodiversity contribute to the sustainability and resilience of an ecosystem?(1 point)Responses By standardizing food
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Energy decreases as it moves up trophic levels. If the producer level in a given energy pyramid contained 1,000 kilocalories,
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Which of the following best describes the role of decomposers in an ecosystem's food web?(1 point)Responses They consume primary
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In an energy pyramid, which trophic level typically contains the greatest amount of energy?(1 point)Responses primary consumers
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1. What is the primary source of energy in most ecosystems?(1 point)Responses producers producers sunlight sunlight consumers
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1. During which phase of the cell cycle does DNA replication occur?(1 point)Responses Anaphase Anaphase Prophase Prophase
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2. Which of the following accurately describes the number of daughter cells produced in mitosis and meiosis, respectively?(1
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3. Crossing over occurs during which stage of meiosis?(1 point)Responses Anaphase I Anaphase I Prophase I Prophase I Metaphase I
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4. In which type of cell division do homologous chromosomes separate during the first division?(1 point)Responses Both mitosis
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5. What is the result of meiosis in terms of genetic variation?(1 point)Responses identical daughter cells identical daughter
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5. What percentage of the offspring from a monohybrid cross of two heterozygous guinea pigs will be hairless?(1 point)Responses
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4. In Mendel's experiments with pea plants, the term "dominant" refers to:(1 point)Responses The allele that is expressed in the
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3.What does a heterozygous genotype consist of?(1 point)Responses All uppercase letters All uppercase letters One dominant and
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2. What term is used to describe the different forms of a gene that can occupy a specific locus on a chromosome?(1 point)Respons
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1. Which of the following describes the basic unit of heredity that is passed from parents to offspring?(1 point)Responses
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When an ecosystem is disturbed by fire or toxic chemicals, it affects(1 point)Responses one type of food source in the
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If an ecosystem is irreversibly destroyed, species unable to travel or adapt will(1 point)Responses find additional mates. find
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An example of a severe disruption to an ecosystem is(1 point)Responses seasonal flooding of a river. seasonal flooding of a
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In a certain forest ecosystem, there are lions who prey on deer. The deer eat grass. Which of the following would be the
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Which is an extreme disturbance to any ecosystem?(1 point)Responses coral bleaching coral bleaching elk overgrazing elk
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What percentage of the offspring from a monohybrid cross of two heterozygous guinea pigs will be hairless?(1 point)Responses 25%
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In Mendel's experiments with pea plants, the term "dominant" refers to:(1 point)Responses The allele that is expressed in the
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What does a heterozygous genotype consist of?(1 point)Responses Two dominant alleles Two dominant alleles All uppercase letters
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What term is used to describe the different forms of a gene that can occupy a specific locus on a chromosome?(1 point)Responses
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Which of the following describes the basic unit of heredity that is passed from parents to offspring?(1 point)Responses allele
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Carbohydrates store energy and provide structural support. They are composed of the following 3 elements:(1 point)Responses
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. What are the four main macromolecules that keep the cells of the body functioning properly?(1 point)Responses carbohydrates,
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Hypertension is the medical term for high blood pressure. There are risk factors for high blood pressure, including stress and
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The cardiovascular system works to pump blood throughout our body. Which of the following statements is true if blood
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2. Which of the following are the "pipes" of the circulatory system?(1 point)Responses lungs and brain lungs and brain glands
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Blood exerts a force on the muscular wall of the blood vessel. This force is called:(1 point)Responses blood monitoring blood
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What does repetition accomplish in a presentation? Select the two correct answers.(1 point)Responses It makes sure the audience
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What are the elements of delivery style? Select the three correct answers.(2 points)Responses argument argument pace pace
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Which statement is the most clear and concise?(1 point)Responses Teaching computer literacy to kids is important because many
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Use the presentation description to answer the question.Task: to research the history and evolution of popular winter sports
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What is a presentation type?(1 point)Responses the reason why a presentation is given the reason why a presentation is given the
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Which species is considered invasive? (1 point)Responses dodos dodos earthworms earthworms polar bears polar bears kudzu vines
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The Cuban treefrog invaded Florida in the 1930s and has since spread throughout the southeastern U.S. It produces a “grating
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Due to climate change, places that used to be colder are now warming up, allowing new invasive species to establish themselves.
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What is species richness?(1 point)Responses the combined total of all individuals of each species in an ecosystem the combined
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What is the difference between an introduced and an invasive species?(1 point)Responses An introduced species is not necessarily
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What are transitions?(1 point)Responses the way a text is arranged the way a text is arranged titles that separate sections of
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What does it mean to synthesize?(1 point)Responses to use certain words and phrases to connect ideas to use certain words and
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What does the word fallacious mean?(1 point)Responses misrepresented or altered misrepresented or altered false or mistaken
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Coral bleaching affects(1 point)Responses the acidity of the water. the acidity of the water. the color of the water. the color
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Which is the least likely reason that a seal needs ice cover?(1 point)Responses to protect itself from the sun to protect itself
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There is a history of global temperatures changing, but why is this change different?(1 point)Responses This shift in
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What causes ocean acidification?(1 point)Responses Acidic oxygen dissolves in water, lowering the water’s pH. Acidic oxygen
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What causes coral bleaching?(1 point)Responses High water temperatures and water acidity cause coral polyps to expel algae,
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Which aquatic environment is an example of a saltwater ecosystem?(1 point)Responses a lake a lake a river a river a sea a sea a
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Predator/prey interactions regulate the populations of both groups. Which chain of events follows from an increase in
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A group of mountain gorillas has 10 members. How big is the group after 4 females emigrate, 2 females immigrate, 2 gorillas are
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Which factor may increase a rabbit population?(1 point)Responses decrease in food decrease in food decrease in temperature
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Which of the following is expected to happen to a species' population when resources are stable over a long period of time and
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Which citation of an online magazine article is correctly formatted with all the necessary information?(1 point)Responses
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What is a citation?(1 point)Responses the act of taking words or ideas from a source and passing them off as one’s own the act
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What is bias?(1 point)Responses trustworthiness or believability trustworthiness or believability neutrality or seriousness in
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Which of these sources is the most reliable?(1 point)Responses a blog post published five years ago on a personal website a blog
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What is a research question?(1 point)Responses an inquiry that can be answered through study and investigation an inquiry that
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Which statements describe a good research question? Select the two correct answers.(1 point)Responses broad enough that there
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What is a concept web?(1 point)Responses a visual diagram a writer uses to organize ideas before writing a text a visual diagram
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What is an inquiry?(1 point)Responses an investigation into a topic to establish facts or reach conclusions an investigation
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Imagine that you have created a fantasy world with a group of friends. You are all writing short stories that relate to the
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Imagine that you are working on a group science project that involves running several lab experiments, discussing the results as
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What is something that all Creative Commons licenses require users to do?(1 point)Responses register under the same license as
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Which scenario involves a reporter acting ethically?(1 point)Responses A reporter explains a controversial situation and chooses
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Which question would best help you critically analyze a source of media and its information?(1 point)Responses Where are the
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Use the scenario to answer the question.A commercial is marketing a new electric vehicle. The commercial shows a sporty car
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Use the scenario to answer the question.Imagine you are watching a video about a photographer who takes photos of people running
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An advertisement shows people cheering for their home team at a sporting event with a voice over that says, “Our team is the
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Which techniques might be used to imply that something terrible has happened offscreen? Select the two correct answers.(1 point)
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A current trend in media is a shift to digital media away from print media. Given this information, which category of mass media
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Would a long-term increase in the average temperature of a region be considered a significant disturbance in the ecosystem?(1
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How is the impact of seasonal flooding different from damming a river?(1 point)Responses Seasonal flooding decreases
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What happens to an ecosystem during normal seasonal flooding?(1 point)Responses The biodiversity of the area stays the same. The
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Which is considered a top predator in the ocean?(1 point)Responses a sea lion a sea lion a bird a bird a small whale a small
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What is the function of a top predator in an ecosystem?(1 point)Responses It maintains other populations. It maintains other
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Which ordered pairs represent points on the graph of this equation?–6x–5y=5
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Which ordered pairs represent points on the graph of this equation?7x+4y=14
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Which ordered pairs represent points on the graph of this equation? Select all that apply.y = - 3/4 x - 1/2
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Which ordered pairs represent points on the graph of this equation?y=4x–4
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Which ordered pairs represent points on the graph of this equation? Select all that apply.–3x + 5y= –10
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Which ordered pairs represent points on the graph of this equation? Select all that apply.y= 1/3 x
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This equation shows how the total number of pieces Tucker knows how to sing depends on the number of weeks he takes voice
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This equation shows how the number of spools of thread that Zoe has left is related to the number of dresses that she sews.s =
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