12. Justin usually blows his nose using Kleenex tissues. His snot keeps leaking through the tissue. He decided he's going to create and experiment to find out if there is something better.

a. type of tissue
b. Justin
c. amount of tissue
d. mess of the snots the tissue can hold
e. Kleenex

23. Harvester ants often strip a bush of all of its leave. Some people believe this helps the plant grow thicker, healthier stems. In an experiment, a student stripped off all the leaves from a set of plants. In a second set of identical plants, the student allowed ants to strip off the plants' leaves. In order to improve this experimental design, it is most important to add a set of plants that ___________

http://www.jiskha.com/display.cgi?id=1400875475

What about that?

Why don't you click on that link?

No duh. I did. How's that supposed to help me? -.-

a. type of tissue - To determine if there is a better tissue for blowing his nose, Justin can conduct an experiment where he tests different types of tissues. He can gather different brands of tissues, such as Kleenex, Puffs, and generic store brands. He would blow his nose with each type of tissue and observe which one absorbs the snot better. He can rate the effectiveness of each tissue based on how well it prevents his snot from leaking through.

b. Justin - Justin is the person conducting the experiment, and he plays a crucial role in collecting data and observations. After each nose blow, he should closely examine the tissue to determine if snot has leaked through. He should also record his observations and rate each tissue accordingly.

c. amount of tissue - To ensure accurate results, Justin should use the same amount of tissue for each blow. This will help maintain consistency across all the different tissues being tested. He can tear off a standard-sized piece of each tissue and use it consistently throughout the experiment.

d. mess of the snots the tissue can hold - One of the factors Justin wants to investigate is how well the tissue can hold and contain the snot. To measure this, he can create a standardized test where he blows his nose with each tissue and collects the snot in a controlled manner. He can then weigh the tissue before and after collecting the snot to determine how much it can hold without leaking.

e. Kleenex - Kleenex is the brand of tissue that Justin usually uses. In order to compare it to other types of tissues, Justin should include Kleenex in his experiment. This will allow him to determine if there are better options available or if Kleenex is already the best choice for him.

For question 23:

To improve the experimental design for the effects of ants stripping leaves from plants, it is important to add a set of plants that serves as a control group. The control group should be identical to the other sets of plants but without any disturbances or interventions. This will allow the student to compare the growth and health of plants without ants, plants with ants, and plants in the control group. By having a control group, it ensures that any differences observed in the other groups can be attributed to the influence of ants on stripping leaves, rather than other external factors.