Explanation:
the brain is an important part of the body it controls messages sent through your body and also it is the center for decision making emotions personality and thoughts
<span>selective breeding </span>because people are breeding new things.
Answer:
B
Explanation:
Blood pressure is the force of the blood pushing against the artery walls.
the complement system is a group of proteins in the blood that attack pathogens that enter the body and kill them.
The physical barrier that the mRNA must pass is the nuclear membrane.
The process of gene expression involves two main stages; transcription ; the production of messenger RNA by the enzyme RNA polymerase, and the processing of the mRNA molecule. Then the process of translation which takes place outside the nucleus, therefore the mRNA must cross the nuclear membrane to enter the cytoplasm.
