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Which summarizes the products of glycolysis? ATP, NADH, and pyruvic acid ATP, CO2, and pyruvic acid glucose, ATP, and NADH NAD+, NADH, and ADP
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Is the binding of a transcription factor to its dna recognition sequence necessary and sufficient for an initiation of transcription at a regulated gene?
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In what ways do ice and snow influence the storage of energy? what evidence is there that this is so?
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In nerve cells the sodium-potassium pump is used to generate gradients of both sodium and potassium ions to propagate electrical signals that travel along nerves. This is a(n) A)
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Using microscope slides and dipping them into the boiling hot springs at Yellowstone National Park, scientists were able to collect these organisms. They are unicellular, prokaryotes with a cell wall.
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Brass gets discoloured in air because of the presence of which of the following gases in air? A. Oxygen B. Hydrogen sulphide C. Carbon dioxide D. Nitrogen
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This photograph was taken at a location on Mount Saint Helens called Meta Lake. The area was clear-cut before the volcano erupted in 1980, meaning that all trees were cut down and used for timber or o
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How might stem cells most likely be used in the future to treat human disease? A. Stem cells could be modified to produce chemicals that kill bacteria and viruses. B. Stem cells could be used to preve
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The thylacine is an extinct marsupial that once roamed Tasmania and Australia. There are several preserved specimens in existence. Which of the following DNA technologies offers the best chance for br
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Johannes Kepler was a German astronomer who lived in the 17th century. He was the first scientist to accurately describe the motions of the planets around the Sun with mathematics. More than 50 years
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Identify the correct sequence of molecules, as a gene goes from coded information in the nucleus, to the product the cell wants to make. A) DNA -> messenger RNA -> transfer RNA -> protein B) DNA -> tr
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Which of the following describes an example of an energy resource that does not pollute the air with greenhouse gases? a)Wind power, which converts wind to electrical energy b)Natural gas, which is re
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How does the soil-based view of the phosphorus cycle compare/contrast with the global-view of the phosphorus cycle?
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An animals body works to maintain its body temperature at a constant level , even when the surrounding temperature changes. What type of feed back does this show?
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An individual has a nutrient deficiency due to a poor diet and is missing a specific amino acid, how would this affect the ability of the cell to synthesize particular proteins?
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Diseases can be caused by inherited disorders, exposure to toxic substances, organ malfunction and certain personal behaviors. Choose two of the above and for each one give a specific example of an as
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What is the correct term for variation in characteristics within populations of the same species? A variation in characteristics within populations of the same species is called .
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What's the number of photosynthetic organisms on the earth decreased drastically which would happen as a result
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You want to isolate a functional integral membrane protein from the cell to study its channel activity. what method would you use to isolate the integral membrane protein? by using mild-detergent by a
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A negative impact of a large, hydroelectric dam is that it backs up water sometimes for miles behind it, destroying natural habitat that once was there. But a positive environmental impact of a dam is
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Place the following words into the illustration below sporophytes game of Thai fights and Zagat Zagat
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Which one bacteria is matched correctly to its descriptionA. spirillum - has a rod shape and exists in chains or aloneB. coccus - can cause MRSA and has a round shapeC. coccus - can cause acne and has
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Type the correct answer in the box use numerals instead of words the vertex of a parabola is (-2,-20) and it y-intercept is (0,-12) the equation of the parabola is y=
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The following diagram represents how energy flows through ecosystems: sunlight plants herbivores carnivores What would most likely occur in an ecosystem if a nearby volcano erupted and filled the sky
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The animations in this section allow you to directly compare meiosis and mitosis. what are the specific differences between a somatic cell and a gamete cell?
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Several atmospheric gases contribute to global warming: carbon dioxide, methane, and nitrous oxide. Considering this, which choice would do the LEAST to directly reduce atmospheric carbon dioxide. Tha
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Technological advances in transportation have come about in response to the depletion of fossil fuels and other negative aspects of the internal combustion engine. There are many positives to these ad
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Plants respond to various sources of stimuli such as sunlight, water, and gravity. Plants in humid climates sometimes bend their roots toward a higher humidity. What is this response known as? A. geot
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Which of the following is an example of geotropism helping a plant survive a change in its environment? A. At the edge of a forest, a tree angles away from the woods. B. The roots of a partially upr
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Primary consumers depend on energy from plants for survival. Higher consumers depend on energy from primary consumers for survival. Which of the following is also true about plants and consumers?
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HELP ME....VERY EASY 60 points...if a scientist found a rock layer that contained an index fossil that we know dates to 25 million years ago, what does this tell us about the age of the rock?
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If a scientist found a rock layer that contained an index fossil that we kmow dates to 25 million years ago, what does this tell us about the age of the rock?
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Robert is studying a population of genetically-identical individuals. Robert can conclude that these organisms A) reproduce asexually. B) do not reproduce. C) are multi-cellular. D) reproduce sexually
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States that all living things are composed of cells, cells are the basic unit of life, and cells come from pre-existing cells
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Steroidal hormones can be produced by all of the following except ovaries pancreas adrenal cortex testes
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How does photosynthesis benefit heterotrophs? a.It adds carbon dioxide to the air. b.It creates food that they can eat. c.It eliminates harmful sugars. d.It creates clean water.NEED HELP ASAP
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What happens during crossing over? Tetrads separate and produce two haploid daughter cells. Spindle fibers form and attach to centromeres. Sister chromatids form tetrads and line up randomly. Homologo
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What is the importance of the carbon and nitrogen cycles to ecosystems? They are needed to release the energy stored in food. They provide materials organisms need to build their bodies. They ensure t
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An adaption is a change that______. A.makes a species become extinct B.help a species survive C. prevents a species from surviving D. makes a species prettier to look at
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Which process creates two new cells from one existing cell in order to maintain homeostasis? Cell division Cellular respiration Photosynthesis Reparation
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Which list places the layers of the sun in the correct order from innermost to outermost? A. Corona, photosphere, chromosphere B. Photosphere, convective zone, radiative zone C. Convective zone, chrom
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Different versions of a single gene are called ______________, and one can be dominant over the other(s).
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Can the genotype for a gray-bodied fly be determined? why or why not? describe all of the possible genotypes for a fly with that phenotype. *
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Which of these terms refers to rock material that has been weathered physically, chemically, and biologically? A. Erg B. Soil C. Talus D. Loess
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The human body can properly function only within a certain temperature range. This tendency toward maintaining a stable internal environment is known as homeostasis.
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Which characteristics are used to differentiate between the six kingdoms? body type, coelom, cell type, movement, size body type, cell type, cell structure, nutrition cell structure, movement, cell ty
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In a particular ecosystem, the climate undergoes a gradual change, resulting in increased rainfall. Mosquitoes living in the ecosystem depend on water for reproduction. How will this climatic change m
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Which example describes animals living in a social hierarchy? Check all that apply. 1)a male peacock displaying its feathers to attract females 2)a worker bee defends the hive while the queen bee lays
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Select all that apply. Which of the following statements are true? A purebred organism can either be TT or tt. The combination of two genes determines the genetic trait of an organism. Recessive genes
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How could a scientist use dna sequences of two organisms to find which is more closely related to a common ancestor
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