The answer is D. NADH to NAD+
When no oxygen is present, anaerobic respiration occurs.It is the only way to produce ATP in this condition.NAD+ is necessary because it is converted into NADH and at the same time ADP is converted to ATP in the reaction of pyruvate synthesis from glucose.Therefore, NADH must be converted to NAD+ in order to have NAD+ always present in the cell.
Answer:
The correct answer is- make a prediction
Explanation:
A hypothesis can be defined as an explanation of any observation which can be confirmed by experiments and prediction is the guess about the future result of any observation.
As here a biologist hypothesized that the sound produced by frog is mating calls than the next step of the biologist would be to make a prediction about response of that mating call by female frogs. This is called hypothesis prediction method.
Therefore the right answer is- biologist will make a prediction.
If its a herd of caddle or bulls, Somone on a horse would be riding next to the herd slowing turning the herd back to where they belong
Vacuoles are large compartments within the eukaryotic cells that capture and store food or toxic materials, maintain turgor pressure, and dispose of cellular waste. Both the plant and animal cells have vacuoles. The size of vacuoles in a plant cell is larger in comparison to animal cells. Vacuoles in plant cells store the produced food and waste in the form of resins. The vacuoles also contain water and give structural support to cell to make them turgid.