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a) The "Big bang theory" explains the origins of universe. Before there could be life on Earth, there required to be a planet and universe to consist of that life. Edwin Hubble discovered that the universe is expanding. From this rate of expansion, scientists were able to find that the universe started from a single point of compressed gasses 15 billion years ago. The explosion of that point of compressed gas outward is "Big bang theory". From that explosion stars were formed and over time space debris and eventually planets
The "Primordial soup" includes the mixture of elements and gases which are thought to have started life on the Earth.
Speculate on how, over the course of evolution, these complex molecules would eventually form the complex life forms such as humans and animals.
Suppose the diameer of a neutral helium atom is 1.40 x 10 to the second power pm. supposed that we could line up helium atoms side by side in contact with one another. How numerous atoms would it take to make the distance from end to end 9.00cm.
You find out an unusual organism growing in the bark of a dying tree. Under a microscope, you observe that its cells are eukaryotic, have cell walls, and do not contain chloroplasts. Into what kingdom would you categorize this organism? Explain the d..
Illustrate the metaphase cell of this culture showing predicted distribution of radioactivity on the autoradiograph.
The resting potential of a neuron is approximately -60mV. Neurons maintain this electric potential by maintaining a balance of ions inside and outside the membrane. Which of the following is the most significant factor in determining this balance.
How may stomata density serve as a bioindicator for monitoring the response of plants to changes in greenhouse gas concentrations in the future.
Explain a single procedure that could be used to isolate the Con A Receptor from this preparation. Propose two ways the photosynthesis process could be improved to fix more CO2 than normal and the plant productivity can be increased. Be specific abou..
Cancer patients undergoing chemotherapy are normally more susceptible to infections. However, a patient receiving an antitumor drug that inhibited cell division was resistant to salmonella. Provide a possible mechanism for the resistance.
The seeds of orchids are among the smallest known, with virtually no endosperm and with miniscule seed leaves. As a result, what must one expect to be true of such seeds.
While a tall homozygous plant was crossed with a short homozygous plant, the F1 offspring were all tall. No short plants were present in the F1 generation. Which principle does this situation represent.
Write down 1X4 matrices, P, G, and M that represent the nutritional values of each food. Then find 3P+2G+2M and tell what the entries represent.
Chlamydias and rekettsias were once classified as viruses because of their small size and obligate intracellular growth requirement. What are some of techniques can be used to illustrate that they are really bacteria.
How, at what time the shoot tip touched the other plant's stem did the shoot switch from growing straight to growing in a spiral? Write down a hypothesis first.
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