Answer:
Plaster cast is made up from dry muslin containing starch or dextrose and calcium sulfate.
Explanation:
It is applied to protect and is immobilize an injured bone or joint because it provides rigidity.
It is also used to help the bone and joint from reduce pain that is created during movement.
When plaster becomes wet,it reacts (Between water and calcium sulfate) and produces heat that eventually sets the plaster.It becomes hard when it dries.
The color of plaster casts are smooth and white.
Primary growth or lengthening of plants results from mitotic division in cells of the apical meristem tissue. The apical meristem can be found in the top of plants. When the plant divides, it helps to lengthen it. The correct choice is C.
Chloroplasts contain chlorophyll which is what makes plants green. Onions are not green because they do not contain chloroplasts. The reason they do not have chloroplasts is because in the chloroplast, photosynthesis takes place. A key player in the process of photosynthesis is the sun. The onion itself grows underground which means while they grow they do not come into contact with the sun so chloroplasts in an onion is pointless since they can’t undergo photosynthesis. Hope I helped!
I believe the answer would be A, because if water didn’t exist, there would be no presence of living things on earth. Water is a resource for life, thus, presence of living things.
