Answer:
D
Explanation:
I just did this and it was D
The correct option is C.
Pilli is a long protein filament which attach reproducing cells together during conjugation. This attachment allows the cells to exchange the genetic materials, that is, plasmid between them.
The abbreviations for a tetragram, a nanosecond and a kiloliter are as follows:
Tg ,ns and kl.
Nanosecond is *10-9.
One teragram is ten raised to the power of 9 and one kiloliter is equivalent to one thousand liters.
Answer:
Anaerobes carry on cellular respiration in the absence of oxygen, whereas aerobes carry on cellular respiration in the presence of oxygen.
Explanation:
Many of the cell processes needed need some energy to occur. Cellular respiration is the process by which cells degrade organic compounds and turn them into energy. Cellular respiration follows two ways, which depend on the presence or absence of oxygen, and both of them begin with the process of glycolysis, which occurs in the cytoplasm and does not need oxygen to occur.
<u>Aerobic Respiration</u>
- Occurs in the presence of free oxygen.
- Series of reactions by which pyruvic acid (product of glycolysis) turns into CO₂ and H₂O, producing many ATP molecules.
- Respiration occurs in the mitochondria.
- Takes place in two steps or stages: Krebs cycle and electron transporter chain.
- Glycolysis and Krebs cycle produce electrons, which then travel along the electron transporter chain while releasing energy, and ATP is produced.
<u>Anaerobic Respiration </u>
- Occurs in the absence of free oxygen
- Series of reactions by which using pyruvate (product of glycolysis) 2 ATP molecules van be produced.
- There are two ways in which anaerobic respiration can be produced: lactic fermentation and alcoholic fermentation.
- Lactic fermentation produces lactic acid and 2 ATP
- Alcoholic fermentation occurs in two steps, and the final products are ethylic alcohol, 2ATP, and 2 CO₂
- The whole anaerobic process occurs outside the mitochondria.
Answer:
The seed of a tree may sprout in soil that hasa collected in a cracked root. As the roots grow, they widen the crakcs, eventually breaking the rock into pieces. - mechanical weathering
