<span>The S strain of bacteria that Griffith used was virulent meaning that when injected into the mouse, the mouse would die from pneumonia The R strain was nonvirulent and did not result in the death of the mouse. When Griffith injected mice with a dead S strain of pneumatic bacteria the mice remained healthy.
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Answer:
The carbon cycle describes the process in which carbon atoms continually travel from the atmosphere to the Earth and then back into the atmosphere. Since our planet and its atmosphere form a closed environment, the amount of carbon in this system does not change .
Excess carbon in the atmosphere warms the planet and helps plants on land grow more. Excess carbon in the ocean makes the water more acidic, putting marine life in danger. Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt.
Answer:
The answer is D. Nucleus are only found in Eukaryotes.
Combining DNA from different sources is the definition of Recombinant DNA or rDNA. This is what is more commonly referred to as genetic engineering. The applications for this technology are vast, but very expensive. The use of Recombinant DNA has seen applications in agriculture where plants are given immunity to certain diseases or molds from another plant which is resistant or where human DNA is combined with forms of bacteria to produce a more natural insulin for people who are diabetic.
