Hey There! I'm going to say the answer is D "<span>There are no limiting factors to control population growth." Thats just because the certain species will just keep producing and producing which means their is no limit to how many of its kind there can be!</span>
A number of chipmunks die due to old age.
Answer:
reduce NAD+ and FAD.
Explanation:
In the Krebs cycle the carbons donated by the acetyl group are oxidized to CO2 and the electrons pass to the electron transporters. As in glycolysis, a specific enzyme is involved in each step. Coenzyme A is the link between the oxidation of pyruvic acid and the Krebs cycle. In the course of these steps, some of the energy released by the oxidation of the CH and CC bonds is used to convert ADP to ATP (one molecule per cycle), and part is <u>used to produce NADH and H + from NAD</u> (three molecules per cycle). In addition, <u>a fraction of the energy is used to reduce a second electron transporter, the FAD</u>. For each turn of the cycle, a molecule of FADH2 is formed from FAD. O2 is not required for the Krebs cycle: <u>electrons and protons removed in carbon oxidation are accepted by NAD + and FAD</u>. It takes two turns of the cycle to complete the oxidation of a glucose molecule. Thus, the total energy efficiency of the <u>Krebs cycle for one glucose molecule is two molecules of ATP, six molecules of NADH and two molecules of FADH2.
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An 1815 volcanic eruption in Indonesia was followed by a three-year famine around the world. This was due to:
a.The eruption's ash and gas significantly dimmed the sun.
The volcanic ash and gases like the sulphur dioxde remained suspended in the atmosphere for years. This reduced the availability of sunlight and hindered the process of photosynthesis that the crops perform for their growth. This lead to the death of farm crops causing a global shortage of food production (famines).
e.The eruption contributed to global warming.
The volcanic gases like CO, CO2 and CH4 caused the warming up of earth in the later years. This changed the weather patterns in various parts of the planet leading to drought, floods and cyclones. Such drastic climatic changes harm the crops and lead to their shortage.
The giant impact theory — the idea that a catastrophic collision about 4.5 billion years ago between Earth and a protoplanet about half Earth's size created a disk of molten rock, gas and debris that consolidated to form the moon — was first set forth in the mid-1970s.