Ultimate Biology Study Guide - Questions & Answers

22 + b = cWhat is the main benefit of this model?OA. It shows a pattern for determining the side lengths of a triangle.OB. It shows the shape and parts of a triangle.OC. It helps make predictions about the number of sides in a triangle.OD. It helps visualize the features of a triangle.
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Which of the following positively contributes to the genetic variation of a population gene pool? A change in the DNA sequence within a gene or chromosome of a living organism. Random fluctuationsin the frequency of appearance of a gene in a small population. A populations size is reduced for at least one generation. A new colony is established by a very small number of individuals away from a larger population.
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How does heart failure affect the lungs
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When there is no pattern to apopulation's growth, it is known asA. cyclicalC. irruptiveB. decliningD. irregular
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When there is no pattern to apopulation's growth, it is known asA. cyclicalC. irruptiveB. decliningD. irregular
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Disadvantage and advantages for using animal fat as an insulation material?
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2A student takes two herbicide-resistant weeds and determines that the allele for herbicide resistance is dominant (H). The genotype of each plant is HH and Hhrespectively. In a cross between these two weeds, what percentage of the offspring would be resistant to herbicide?A) 50%B) 100%0%25%
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4) A hospital in Vienna noted that many of their female patients were dying of "childbed fever" after they had givenbirth in the hospital. The rates of this fever were much higher in the hospital than they were for women who had givenbirth at a different clinic. In fact, 10% of the women at the hospital contracted fever compared to 4% at the clinic.Ignatz Semmelweis thought that the fever was being transmitted on the hands of doctors when they went from theHe asked the doctors to wash their hands and the number of cases of "childbed fever"morgue to examine women.He also noted that a doctor contracted the same fever after he cut himself with a scalpel that had beenwere reduced.used on an autopsy.Semmelweis concluded that the fever was caused by some element that could be transferred from person to person.REASONING: If fever is something that could be transferred from person to person, then...
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parts of a human brain anwers
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Which of thesedescribeshumoral immunity?A. our body remembering pathogens it has fought off orlearning from vaccinesB. obtaining immunity from an outside source, likemother to babyC. the binding of antigen and antibody triggering aresponse of plasma and memory b-cells to attackD. t-cells and macrophages fighting infected cells thatare non-self or cancerous
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What does the embryo of a new plant form from? O A. The sepal B. The petals C. The ovary walls D. The ovule
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Identify how the physical barriers of the immune system protect the body against pathogens. Check all that apply.your nose produces oil to keep pathogens from entering the body through your noseskin contains tightly packed cellsskin is tough, flexible, and waterproofyou cough when a pathogen enters your mouthyou sneeze when a pathogen enters your nose
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How can septic tanks potentially contaminate water? Wastewater flows into home septic tanks instead of city storage. Septic tanks leak into coastal waters due to rising sea levels. Using septic tanks near urban areas Using septic tanks in rural areas
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Fill in the blank with the best word to complete the sentence.The system is a group of proteins in the blood that attack pathogens that enter the body and kill them.
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Which of the following is NOT the role of an organism in a food web?AProducerBScavengerCComposerDPredator
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the production of egg and sperm cells is necessary for sexual reproduction because-
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The frog floats in water with its eyes, nostrils and eardrums above the level of water. What is the significance of this location
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Explain Photosynthesis and its role in Matter and Energy Cycling. Include its Products and Reactants.
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Evaluate the possible genotypes the offspring could inherit for traits 1, 2, and 3. Use percentages to explain the probability that an offspring will inherit each possible genotypes.
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FILL IN THE BLANK the first gap in the cell cycle (g1) corresponds to ________. the phase between dna replication and the m phase the phase in which dna is being replicated normal growth and cell function the beginning of mitosis
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The greenhouse effect causes an increase in global temperature. The increase is primarily due to which of the following?Group of answer choicesA. Carbon dioxide and other green house gases allowing more solar radiation to penetrate the Earth's surface.B. Carbon dioxide and greenhouse gases slowing the escape of UV radiation from the EarthC. Carbon dioxide and other gases slowing the escape of heat from the Earth.D. The loss of ozone that trapped cooling UV radiation in the atmosphere.
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select is the partial or complete blockage of the small and/or large intestine that is caused by the stopping of normal intestinal peristalsis.
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