I
can conclude that if the color of the solution in the control changed, the
control enabled me to have a perspective in which there is no change ought to
have happened. On the off chance that the control arrangement changed its
color, I would conclude that there were life forms in the water.
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Answer:
List the features of gas exchange surfaces in animals.
1)They are moist to prevent the cells from drying and to allow gases to dissolve;
2)They have a large surface area , so that a lot of gas can diffuse across at the same time;
3)They have a high concentration gradient - maintained by the movement of air & blood.
Histamines are chemicals released by the body as an allergic response.They help the body by reacting when their are "intruders" so when enters, histamine acts as a messenger and sends out a signal for the body to create a reaction helping to get rid of teh intruder through some type of reaction.
Answer:
In the gragh y-intercept is the point.
