Answer:
Endosymbiosis
Explanation:
Chloroplast is one of plant cells organelles that are said to have evolved from endosymbiotic prokaryotic cell. That is there possibility that chloroplasts are aerobic prokaryotes that were engulfed by plant cells.
Answer:
Trade off.
Explanation:
Trade off may be defined as the condition in which one trait cannot increase without the decreasing of the another trait of the organism. Trade off proves to be beneficial as well as detrimental for the organism.
Lizard as inhabit the desert with few predators, the large eggs are produced when the resources are scarce. This is an example of trade off as the size of eggs increase as there are no natural predators and the resources are scarce in this case.
Thus, the answer is trade off.
The size of the predator population keeps the prey population in check. Without the predators, the prey population would get out of hand and begin overpopulating.
Answer:
the sample contains starch and starch is stored in ground tissue.
Explanation:
It should be understood that Iodine solution is used to test leaves for the presence of starch. This will show a blue-black color, which means the presence of starch.
This process can simply be demonstrated by simply following these steps.
* Take two potted plants of the same kind.
* Keep one in the dark (or in a black box) for 72 hours and the other in the sunlight.
* Take one leaf from each of the plants.
* Put few drops of iodine solution on each of the leaves.
* The leaf kept in the sunlight will turn blue-black due to presence of starch.
* The leaf kept in the dark will not turn blue-black because of absence of starch.
In conclusion, the iodine is used to test for starch.