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1) 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.
Explain one thing in biosphere you would like to modify. Why do you feel this way? What do you think can be accomplished to implement the changes?
The unfenced control plot had not changed significantly in species composition. By means of the concepts discussed in the chapter, what do you think happened.
Clostridium and Streptococcus are both catalase-negative. Streptococcus grows by fermentation. Why is Clostridium killed by oxygen, whereas Streptococcus is not.
Imagine looking during a microscope at a squashed onion root tip. The chromosomes of many of cells are plainly visible. In some cells, replicated chromosomes are aligned along center (equator) of the cell. These particular cells are in which stage of..
Mrs. Smith and Mrs. Jones had baby girls same day in same hospital. Mrs. Smith named her baby Shirley and Mrs. Jones named her baby Jane.
What would be the effect on blood pressure and phsiological basis of a blow to the head that damages the vasomotor center.
What phenotypic ratio would you get if you crossed a white mouse and a heterozygous brown mouse?
The concept of vitalism is based on the belief in a life force outside the jurisdiction of physical and chemical laws. According to this belief, organic compounds are able to arise only within living organisms. Which did the most to refute the concep..
If Penicillium typically secretes penicillin without disturbing the lichen relationship in which it is engaged, then what should have been true about its partner.
What genetic basis of erminette pattern is suggested? How will you test your hypothesis. In brief compare the progress of an infectious disease through a well-immunized population with its progress during a poorly immunized population.
Explain the events that occur when epinephrine binds to a G-protein coupled receptor in the membrane of a cell. Begin with the binding of the epinephrine and end with the activation of adenylyl cyclase.
Will xylem fluid flow into the aphid. Which microbes are most susceptible versus most resistant to disinfectants? Why.
Throughout exposure to elevated glucose, a yeast cell's membrane glucose transporters will rapidly increase so the cell can import glucose. Which will represent the yeast cell response.
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