The answer is A because water is a liquid then it turns to ice which is a solid then if it’s left out is will melt so it turn to liquid again
1. ribosome B. production of protein
2. mitochondrion A. Production of needed energy
3. lysosomes H. contain digestive enzymes
4. nucleolus C. production of ribosomes
5. centrioles G. form fibers to separate chromosomes evenly
6. endoplasmic reticulum F. tubes serving as transportation channels
7. chromosomes <span>I. contain genes for trait</span>
8. Golgi bodies D. production of secretions
9. plastids E. store foods or pigments
Untreated acute allergic reaction is a life-threatening situation because its symptoms can progress quickly. The most dangerous is the Anaphylaxis. It can be triggered by drugs, food, or injections, which a person may experience itching, swelling, difficulty in breathing, panic, and collapse. The worse is cardiac arrest when not treated immediately. Moreover, a prolonged illness may also develop as its late phase such as severe asthma.
Although bacteria can be seen without staining, not all of their characteristics can be visible. Thus, with staining one can see if the bacteria is gram positive or negative, the outer wall's or capsule's structure, the exact size and texture of the surface etc. Without staining, it would be very difficult if not impossible to differentiate between different bacteria types.
Fixing a bacteria allows the scientist to immobilize and preserve it. Thus a complex study can be performed over a longer period of time. The bacteria can also be preserved in order to be restudied at a later date.
