Answer:
A
Explanation:
The reaction used in the brewing industry is realized by a fungus called Saccharomyces Cerevisae which converts glucose into ethanol and carbon dioxide. Glucose is first transformed into pyruvate.
The second reaction is the reaction for lactic fermentation made by bacteria like Streptococcus lactis or Lactobacillus bulgaricus
The third reaction is the reaction of aerobic respiration
Answer:
Independent variable - time. Dependent variable - the distance moved by the bubble along the capillary tube. Control variables - temperature, air flow or draughts, adequate supply of water.
Answer:
less than 1%
Explanation:
The approximate percentage of the geologic time that humans have existed on the Earth since its origin is less than 1%.
The earth is about 4.6 billion years and much of its history has been without the present of human activities.
- Hominis were the first human to appear on the surface of the earth.
- This was in the Miocene epoch which was about 6 million years ago.
- Compared to the age of the earth, this time lapse is very small and not up to 1%.
- Life first appeared on earth about 3.5billion years.
- Since then evolution has taken its due course to give what we have today.
Convection currents are caused by the colliding of cold and warm air. At night, air above water is warm and air above land is cold. The opposite is true in daytime. When the warm air hits the cold air, which is more dense, it is pushed upward. Then it travels laterally until it cools. It comes back down and pushes up the former cold air, which is now warm. This repeats many times.
A, the basic unit of inheritance
