There aren't enough oxygen molecules in the air are higher altitudes
I think it’s c
Primarily, lactic acid fermentation differs from ethyl alcohol fermentation in that lactic acid, rather than ethanol, is the resulting by-product. When exposed to oxygen, lactic acid molecules break down into carbon dioxide and water.
These ones it helps to draw. you have four carbons and each one must have 4 covalent bonds coming off of it, but the double bond will act as a 2 covalent bonds between carbon atoms rather than 1. You should get C4H8. Alternatively the alkene formula can be used (alkenes are molecules with a C to C double bond) which states CnH2n will be the Molecular formula where n is the number of carbons.
The phase of the moon now is Waxing gibbous. Gibbous means that the other half is visible but is not full. This phase includes the night after first quarter and the night before the full moon.
Prophase is the first phase is when the two sister chromatids pair up and the nucleoli disappears. Prometaphase is the second phase where the microtubules begin to separate from each other, each pair of microtubules attach to the kinetochores and some nonkinetohore microtubules interact with those from the opposite pole of the spindle. Metaphase is the third phase where the chromosomes are lined up on the invisible line of the metaphase plate. Anaphase is the fourth phase where the two daughter chromosomes begin to separate from each other to opposite poles. Telophase is the last phase where the two daughter nuclei form creating two identical nuclei.
