Answer:
the temprature
Explanation:
the season are always opposite in each hemisphere the rotational process causes the sun to be higher in the sky in the winter and lower in the summer
Answer:
As the cells run out of oxygen they switch to anaerobic respiration, which allows the cell to make small amounts of ATP in the absence of oxygen.
Explanation:
The fatigue in the muscle is due to lactic acid fermentation which occurs during vigorous muscular activity when blood is unable to supply enough oxygen to muscles. The lactic acid accumulates in the muscle causing pain and muscle cramps.
Glucose → Lactic acid + 2ATP
Anaerobic respiration was very weak because the earth had no harmful chemicals in the air at the time
Answer:
gene expression
Explanation:
Gene expression is the process that allows proteins to be obtained from genes. Genes are sequences of DNA nucleotides that encode the information necessary for protein synthesis. This synthesis takes place in two steps: transcription and translation. Transcription takes place in the nucleus and in it one of the two strands that make up the double strand of DNA serves as a template for a specific sequence to be copied to a single stranded RNA molecule. Subsequently, this RNA goes out of the nucleus and carries the message - the nucleotide sequence - to the ribosomes, hence the name messenger RNA (mRNA). Translation is a cytoplasmic process in which the mRNA molecule is decoded to generate a specific chain of amino acids, called a polypeptide (the protein). The correspondence between nucleotides (mRNA) and amino acids (protein) is what is called the genetic code.
