50% AB 25% A 25% B I think sorry if it’s wrong
The physical appearance of a trait is called the phenotype of an organism.
Answer:
oxygen, carbon dioxide and magnetic field
Cell signalling pathways are used to maintain homeostasis. Enzymes are normally present in adequate concentrations but whenever the need for a particular enzyme or protein arises, cell signalling is used.
Signal is sent to that particular cell, the process of genetic expression is activated. A gene that codes for that particular protein(enzyme of interest) goes through transcription, where that genes DNA is copied to make a messenger RNAmolecule, which is further expressed by a process called Protein expression. Lastly, transported to that particular area where it is needed.
Answer:
I feel that the correct answer is A
Explanation:
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