We have polluted it— the air, water and the ground.
Some people have tried to clean up the environment
Answer:
controlled the fertilization process.
Explanation:
Mendel took precautions to avoid contamination by pollen through self pollination of the P generation. He controlled the fertilization processes between the plants. He self pollinated the first pureline varieties to form the P generation. He then cross pollinated them to get F1 generation. Every step of his experiment was controlled.
Sometimes, the dark spots on the marshmallow can fall off of the marshmallow. This means that, the system does not need to include the pieces that fell when determining the mass before and after.
So children<span> look like combinations of </span>their parents<span> because they are. Each </span>parent<span>gives half of </span>their<span> genetic material to </span>their children<span>. The combination makes a unique combination of </span>their parents<span> genes. The scientific study of how </span>traits<span> are passed from </span>parents<span> to </span>children<span> is called genetics.
sry for the long answer</span>
There is much more fresh water underground than on the surface. A rock layer must be porous and permeable to be a good aquifer. An impermeable layer makes up the bottom of an aquifer. The water table rises and falls with additions or subtractions to the groundwater system.
