Answer:
c. The starch stayed in the bag and the iodine leaked into the bag and the reacted with it, turning the solution black.
Explanation:
According to the given information, the solution inside the dialysis tubing has starch while water present outside has iodine. The color of the water present outside the dialysis tubing does not change which means that starch did not leak out of the bag and stayed in the bag itself. On the other hand, the starch solution present inside the bag turned black representing the fact that iodine entered the bag. The reaction of starch with iodine produces a blue-black color.
Answer: Sustainable
Explanation:
Once a product can serve the present moment and remain useful for an indefinite period without polluting the environment, or getting reduced in value, it can be said to be SUSTAINABLE.
I think #1 is pointing to the cell membrane
#2 is pointing to the nucleus
#3 is pointing to the chromosomes
and #4 is pointing to the cytoplasm
In the
process of the nitrogen cycle.
<span>
The nitrogen cycle is a
biogeochemical succession process of nitrogen that involves: fixation,
ammonification, nitrification, and denitrification. Like any other
biogeochemical cycles. This process undergoes and affects the biological, geometrical
and chemical aspects in the ecosystem and the abiotic and biotic community. Hence,
the nitrogen cycle leads the abiotic component –nitrogen- to contribute to the
biotic community, decomposition and primal production. Further, it becomes an
essential part of the environment because some life components are contains it,
similarly, amino acids, nucleic acids in RNA and DNA. </span>
Decrease in the tree population can damage the environment.
