Answers edited by Kate M.

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• In humans, which glands produce chemicals that are distributed by the circulatory system and influence various target organs?
  
• How does a hurricane finally die down?
  
• What type of eruption was the 79 AD eruption of Mount Vesuvius?
  
• Throughout most of human history, did human population size skyrocket, remain at carrying capacity, decrease, grow very slowly, or show boom and bust cycles?
  
• Is the phenotype of an organism controlled by its genotype?
  
• On what continent did human life begin?
  
• What is the location of the stomata?
  
• What is microevolution?
  
• What is Pearson's chi-squared test?
  
• How do greenhouse gases cause the greenhouse effect?
  
• What is the difference between veins, arteries and capillaries?
  
• How does solar energy convert the heat energy into electrical energy?
  
• What is the role of greenhouse gases in global warming?
  
• How does aerobic respiration release energy from glucose?
  
• Why is hydrogen peroxide both necessary in our bodies and a danger to our bodies?
  
• How would you describe the Himalayas 40 million years ago?
  
• Which connective tissue composes the dermis of the skin?
  
• How do oomycetes move?
  
• What is a regulatory gene?
  
• What percent of earth's history did dinosaurs live?
  
• Why is acid rain a global issue?
  
• How do oceans absorb CO2?
  
• What are operators?
  
• What is meant by trophic levels?
  
• Why is biodiversity higher at the equator than it is near the poles?
  
• How do greenhouse gases trap heat?
  
• Why are tropical rainforests found near the equator?
  
• What is a metallic compound?
  
• Where does acid rain fall?
  
• What is the composition of the Earth's core?
  
• Is biodiversity greater in hot or cold areas? Why?
  
• What is a heart murmur? What are some common reasons that heart murmurs occur?
  
• What is the basis for the classification of living things?
  
• What is ecological succession in biology?
  
• Is climate change killing our planet or helping it? How do you know?
  
• What is the flat portion of a valley floor adjacent to a stream channel called?
  
• What does the cardiovascular system do?
  
• What is the difference between "global warming" and "climate change?"
  
• The superior and inferior venae cavae empty venous blood into what?
  
• How are chromosomes related to chromatin?
  
• How can ecological succession change a population?
  
• What is macroevolution?
  
• What is a fundamental niche?
  
• What happens to the energy at each level as you move up the food pyramid?
  
• How does fat digestion differ from that of protein?
  
• How do evolution and natural selection differ?
  
• Can phosphate move through food webs?
  
• Does chromatin contain chromatids?
  
• What are some examples of plant mechanical defenses?
  
• What are America's major sources of primary energy?
  
• Why is survival of the fittest misleading?
  
• How does gravity affect erosion and deposition?
  
• Can you explain the causes of global warming in layman terms?
  
• How does an allele determine a genotype?
  
• What determines the shape of a ribosome?
  
• Is global warming natural?
  
• What is the difference between active and passive immunity?
  
• What are three examples of shield volcanoes?
  
• Why are fossils important?
  
• What is a biome?
  
• What is Nerve Cord ?
  
• What is the energy efficiency of consumers?
  
• What are the differences between a lytic infection and a lysogenic infection?
  
• How does mining affect climate change?
  
• Is a fallen, rotting tree considered an abiotic or biotic factor?
  
• What is cDNA? How is it used in cells?
  
• Why are decomposers so important to an ecosystem?
  
• How does gross primary productivity differ from net primary productivity?
  
• How does genetics use the principles of probability?
  
• What is a theory?
  
• How do you find the electronic configuration for ions?
  
• What is the difference between biotic and abiotic factors?
  
• What is the genetic material in eukaryotes wrapped by?
  
• How is decomposition similar to recycling?
  
• How does natural selection act on individuals?
  
• What is genotype expression ?
  
• What does carrying capacity mean in ecology?
  
• What are the characteristics of foliated and non-foliated metamorphic rocks?
  
• Where are fossil fuels found?
  
• Are both natural selection and evolution proven?
  
• How are plate tectonics and seafloor spreading related?
  
• The involuntary muscle that moves food through the digestive system is called what kind of muscle?
  
• Do humans have anything to do with climate change?
  
• What is the rock cycle?
  
• What is the definition of a fossil fuel?
  
• What fossil fuels are used for?
  
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