Some practices that can be done to stop pollution of fresh water and overuse of freshwater are:-
- Properly dispose of hazardous productsPut up signs.
- Use and dispose of harmful materials properly.
- Volunteer in your community.
- Join in a beach, stream or wetland cleanup.
- Prepare a presentation about your watershed for a school or civic organization.
- Organize a storm drain stenciling project.
Answer;
-Inactivation; limited
Differentiation requires inactivation of particular genes to produce populations with limited capabilities that form tissues.
Explanation;
-Cell differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression.
-Gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a cell functions.
-Gene expression plays a critical role in the morphological changes that take place in a developing embryo and fetus and in the differentiation of stem cells to form specialized cells.
The head at the top, the tail is just for getting to the egg
