For the first line/ first question is chlorophyll
Answer: may exhibit metastasis
Cancer cells may exhibit metastasis, this is true.
<span>Other choices are not true of cancer cells because:
Mitotic rate of cancer is high, not slow. Benign tumors are not cancer. It is distinguishable from normal body cells, it forms neoplasms. </span>
The variable that researchers manipulate is the independent variable.
The reason for this is because in experiments different manipulations are often introduced. The sole purpose of these manipulations is to see whether they will affect our independent variable and if they will change its value.
Answer:
protein
Explanation:
a specific protein tht functions in one or more types of cells in the body.
<span>Endoplasmic reticulum (ER) is a network of interconnected sacs (cisternae). Depending on the presence of ribosomes on the surface of their membrane, ER can be rough or smooth. Smooth ER does not have ribosomes on the surface of its membrane. Smooth ER plays a part in lipid production and metabolism, as well as in the production of steroid hormones. It is also involved in detoxification of organic chemicals, products of natural metabolism, etc.</span>