that there once lived humans on mars
The earliest member of the horse family was about the size of a medium sized dog. So 2. Terrier
Hello there!
The image above shows the life cycle of a frog.
Hope you find what your looking for!
~Lexa
Answer:
Letter a. Yes, yeasts can exist in an oxygen-poor environment.
Explanation:
Mitochondria are an organelle that we can find in the majority of eukaryotic cells. Mitochondria help in produces the energetical molecule of ATP. We start with one molecule of glucose that passes through a process called glycolysis to convert glucose into pyruvate. This pyruvate molecule can follow two pathways: when oxygen is available the pyruvate enter into the Krebs cycle and proceeds to the respiratory chain in the mitochondria, when oxygen is not present, pyruvate pass into another pathway, one is the alcoholic fermentation producing ethanol and dioxide of carbon.
As yeast are a eukaryotic organism, they have mitochondria and can grow in the presence of oxygen. When oxygen is absent yeast can grow using the fermentation pathway producing alcohol.
Answer:
A fat molecule comprises of a glycerol backbone and three fatty acid tails.
The structure of phospholipids comprise of two fatty acid tails instead of three. The third carbon of the glycerol backbone is attached to a phosphate molecule. The phosphate molecule is absent in the structure of a fat molecule.
