High School Questions

The election of Andrew Jackson is often considered the beginning of which modern political party ???
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Which of the following describes an evaluative conclusion?A.repeats the main points in the essayB.provides a summary of the main pointsC.discusses the importance or implications of the main points in the essayD.makes a universal claim about the topic
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How does eye location best represent the relationship between structure and function? A. It determines how much of the surroundings an organism can see. B. It affects how an organism interacts with others in its population. C. It indicates the maximum height an organism can reach. D. It determines how an organism responds to changes in the length of the day.
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When Mendel crossed purebred purple flowering plants (PP) with purebred white flowering plants (pp), what were the flower colors of the resulting offspring? 25 percent white and 75 percent purple 50 percent white and 50 percent purple 100 percent purple 100 percent white
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The role of the excretory system is to rid the body of toxic waste products. Which of these body systems also plays a direct role in removing waste products from the body? A) endocrine B) nervous C) respiratory D) skeletal
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In peas, yellow seed color (Y) is dominant to green seed color (y). A homozygous green pea plant is crossed with a heterozygous yellow pea plant. What is the predicted phenotypic ratio of the offspring? A.50 percent yellow, 50 percent green B.50 percent Yy, 50 percent yy C.100 percent yellow, 0 percent green D.100 percent Yy, 0 percent yy
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Why is deforestation in tropical rainforests more devastating to the global environment than deforestation in temperate forests? (Points : 4) most temperate forests are not experiencing deforestation tropical rainforests provide less useable lumber temperate forests do not contribute to the reduction of carbon dioxide tropical rainforests are inhabited by indigenous tribes who are losing their way of life tropical rainforests have much higher biodiversity than temperate forests
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You may have learned about the sheep clone Dolly in your science class. Although this experiment was greeted as a great success, there are many problems with cloning. One of the ethical issues surrounding cloning has to do with population genetics. The potential problem is that A) cloning is safer than traditional reproduction. B) cloning has become too successful in recent years. C) cloning is less safe than traditional reproduction. D) cloning could lead to a reduction of genetic variation.
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How is the process of fertilization in animals like the process that takes place in plants? A. A sperm cell and an egg cell combine to form an embryo. B. Sperm is encased in a grain of pollen to travel to an egg. C. Spores can become sperm that will fertilize the egg. D. Self-fertilization is possible if no partner is available.
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In pigs, the allele for a wavy, rough coat (R) is dominant to the allele for a soft, fine coat (r). A rough coat boar and a soft coat sow mate. They produce several litters, 50% are rough coat and 50% are smooth coat. What were the genotypes of the parents?
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The two main types of fermentation are called what
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Earth’s continents are constantly in motion because they sit on top of gigantic plates which float on Earth’s mantle. Energy from the Earth’s core creates convection currents in the molten layer, and the currents move the plates. Over extremely long periods of time, this movement creates new _______. a. biomes b. plates c. atmospheric layers d. elements
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Which statement correctly describes a difference between photosynthesis and cellular respiration? Photosynthesis produces carbon dioxide, while cellular respiration produces water. Photosynthesis produces sugar, while cellular respiration produces oxygen. Photosynthesis produces water, while cellular respiration produces sugar. Photosynthesis produces oxygen, while cellular respiration produces carbon dioxide best answer gets best response
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during the day, when the sun is shining, the ground gets warm mainly as a result of 1. the emission of greenhouse gasses from factories and vehicles 2.heat from Earth's core being conducted to Earth's surface. 3.convection currents in the atmosphere heating the ground. 4.radiated heat from the Sun being absorbed by the ground.
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When you add 18 to 1/4 of a number, you get the number itself.
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How does the immune system work together with the circulatory system to function properly? A. Red blood cells released by immune cells cause increased blood flow to the infection site; this increased blood flow brings other red blood cells to the area more quickly B. White blood cells move through the body (to parts where they are needed) in the blood vessels of the circulatory system to destroy pathogens. C. The circulatory system's arteries cause the immune system to work harder by bringing oxygen-depleted blood to the infection site. D. The immune system's red blood cells fig
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Pepsin, a common enzyme found in the stomach, is most active at pH values between 0.5 and 2.5. It works slowly between pH values of 2.6 and 3.4. Beyond a pH of about 3.5, it becomes completely inactive. Why does this happen? A) The enzyme inactivates because it melts into a liquid when it is not at the right pH. B) The protein chain in the enzyme is denatured, permanently inactivating it as the pH approaches 7. C) The enzymes slow down, because changing the pH changes the temperature as well, and affects the reaction.
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One trait a plant can have is either red leaves (R) or brown leaves (r). Another trait is tall stems (T) or short stems (t). A plant used in a dihybrid cross has the genotype RrTt. What is the phenotype of this plant?
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