38: Is Primary Producers
39: Is 9,990
40: Is Fungus
41: Is A
42: Is A
Acetylcholine helps _initiate_ muscle contraction in the peripheral nervous system (pns), whereas it acts to _inhibit_ muscle contraction in the central nervous system (cns).
It could be c. But the answer is B
The answer is A as during anaerobic respiration, as there is no oxygen, glucose is converted into ethanol and lactic acid to produce some energy.
Answer: The scientific method is cyclic.
Explanation: Scientific methods is the systematic way of using knowledge , hypothesis , observation , theories and experiments , to give us understanding for the questions.
Scientific method is always cyclic as it involves several steps. Cyclic way give us better understanding about facts and whole phenomena.