Answer:
The change in color in the flowers is because the plant has absorbed the dyed water. After some hours, we can see that the water has ascended through the roots, the stem and reached the flower petals. We can see the water's path till it evaporates in a process called transpiration, which returns water to the atmosphere.
Explanation:
Plants absorb water and other nutrients so that they can live. When we add ink into the water, we can see the water's path from the roots, up the stem, the leaves, and the flowers. In the flowers, the water evaporates through the stomata. We call this process transpiration. The ink allows us to see that the water was in the petals, but it evaporates, leaving behind the ink. As water evaporates, the plant drinks more, which results in a more intense color in the petals.
Answer:
<em>experimental group</em>
Explanation:
In scientific experiments, an experimental group can be described as a group which is under study. In this group, an independent and dependent variable is present. An independent variable can be described as the factor which changes either naturally or which is being changed by the researcher. A dependent variable can be described as the variable which is under study and it might be dependent on the independent variable.
Answer:
It's B.
Explanation:
B. When there was more food to eat in 1989, the number of wolves in a pack increased.
If there's less prey, then there will also be less predators. If there's more, then more predators.
Because, as seen in the graph, it's the only thing that makes sense.
<em>(Then again, it looked kinda blurry to me.)</em>
Still hope this helps though.
