<span>for accurate results, for example when they are making vaccines, these are weakened harmful or disease causing viruses,, too little of the virus then it would not be a vaccine or simply would not build you antibodies, and too much of it would not also not a vaccine since it will already inflict a disease or possibly be fatal</span>
It is what makes plant stems, leaves, and branches so strong.
Answer:
Development is largely under the control of genes. Mature cell types of the body, like neurons and liver cells, express different sets of genes, which give them their unique properties and functions.
Explanation:
Hope it helps!
If not, I'm sorry I couldn't help :(
