Question is incomplete. Complete question is as follows:
All cells have
A. a covering called a plasma membrane that surrounds the cell and controls what information and materials enter and leave it.
B. An internal fluid that gives shape to the cell and supports the other things within it
.
C. A central zone or nucleus that contains the cell's genes.
D. All of the above
Answer:
D. All of the above
Explanation:
- All cells have a protective covering called plasma membrane. It allows the entry and exit of selective materials. Some cells can have an additional layer outside it which is called cell wall. For example, plant cells.
- All cells have an internal fluid where the components of the cell float. It is called cytoplasm or protoplasm. It maintains the shape of the cell and also provides a structure to it.
- All cells also have a zone where the genetic material is present. The genetic material is ultimately responsible for keeping the cell alive and forming various proteins. In prokaryotic cell it is present just in a zone in cytoplasm. In eukaryotes it is present inside an organelle called nucleus.
- Hence, all the above things are present in each cell.
Earthworms amnion.........................................................
starfish bony skeleton.......................................................
The hot plate is the greatest hazard do to the fact that the hot plate will be hotter than the water. It is also plugged into the wall so there is a hazard of if water is spilled onto the hot plate. You could get burned by the electrical water and cause a fire.
I hope this was helpful
Answer:
The pesticides decrease exposure to food contaminated with harmful microorganisms, helping prevent illnesses caused by food.
"A" <span> A solution of AgNO3 is added to a solution of CaCl2 to produce solid AgCl and a solution of CaNO3</span>
