Correct Question:
An asynchronous counter signal:
Answer:
overrides the clock-gated input signal(s).
Explanation:
An asynchronous counter signal normally overrides the clock-gated input signal(s).
An asynchronous counter is a type of counter whereby each flip-flop output serves as the clock input signal for the next flip-flop signals and preset can be used to override the clock-gated input signal(s).
Hello!
The answer to your question is B.
Oxygen.
Photosynthesis is a process which converts the energy in light into chemical energy in compounds. This process happens inside the living organisms which have chlorophylls. With the presence of sunlight and chlorophylls, organisms which can do photosynthesis produce glucose and oxygen as products by using carbon dioxide and water as materials.
Reaction is
6CO₂(g) + 6H₂O(l) → C₆H₁₂O₆(s) + 6O₂(g)
~Hope this Helps!~
Answer:
Because it's anaerobic
Explanation:
This metabolic pathway can be found in most of the organisms in the nature.
That gives us the guideline that it's one of the first in appear, even in the abstence of oxygen.
Millions of years ago, there was no presence of free oxygen in the atmosphere.