<span>Of the 118 elements that have been discovered, 90 of them indisputably occur in nature. There is disagreement over whether four more or eight more occur naturally as a result of radioactive decay of other natural elements. The answer is, therefore, 94 or 98.</span>
Answer:
e
Explanation:
Forests and trees store carbon . When they are degraded or completely cleared, e.g. by fire – a process referred to as deforestation – this stored carbon has the potential to be released back into the atmosphere as carbon dioxide and contribute to climate change .
Answer:
The correct answer is - option D. lytic cycle.
Explanation:
The lytic cycle is one of the two viral reproduction cycle. Generally, it is the major reproduction cycle. In this cycle reproduction of the viruses takes place inside the host cell and produce more viruses. In the production of the more viruses the host cell and it''s destruction takes place in the end. The 5 steps that takes place are as follows:
1- attachment - viruses attach to the cell.
2-penetration- only nucleic acid or genetic material is injected into the host cell through the hole made by the tail fibers and enzymes.
3- synthesis - replication of viral nucleic acid and protein and envelope.
4- assembly - assembling of the new viruses formed.
5- release.
Thus, the correct answer is - option D.
Answer:
The dotted line most likely represent C NADH and FADH2
Explanation:
NADH is a reducing agent formed during glycolysis and TCA cycle. FADH2 also act as electron donor or reducing equivalent generated only during TCA cycle.
NADH and FADH2 are reduced form of coenzyme NAD+ and FAD. NADH and FADH2 formed during glycolysis or TCA cycle, enters into the electron transport chain(ETC) to perform oxidative phosphorylation that deals with reduction of oxygen(O2) to water(H2O) along with the formation of energy in form of ATP.
There are two types of respiration namely aerobic and anaerobic respiration. Anaerobic respiration requires oxygen while anaerobic respiration does not require oxygen. The products of anaerobic respiration (also referred to as fermentation) in yeast are carbon iv oxide and ethanol. Anaerobic respiration has a range of applications in the society which includes Brewing process (bear making process) in alcohol industry, bread making process( baking) in baking industry.
