The answer is "autotroph."
<span>Humans have pores in their skin to sweat and cool off the body. Plants have similar structures called stomata. Through these structures, plants can do the same things humans can through their pores, such as release the heat from them, as well as unnecessary chemicals through "sweating." Tendrils are stems, pores are called stomata, and not pores when it comes to plants, and receptacles are parts of the stem where flower organs grow.</span>
Answer:

Explanation:
First, let's identify the tools needed.
Since the biology class is studying the temperature, they will likely need a <u>thermometer</u>. Also, they are gathering information about the growth of the plants. This could use a <u>balance </u>of a meterstick.
Next, recall the difference between quantitative and qualitative data.
- <u>Quantitative</u>: Measurable and numerical results found using scientific instruments/devices
- <u>Qualitative</u>: Data found using the senses, such as descriptions and diagrams.
Since the class is measuring temperature and growth using tools, it must be quantitative data.
We can eliminate choices A and B, because they claim the class will gather qualitative data. Then, we can eliminate choice D, because a beaker and timer won't help with temperature and growth. That leaves choice C as the correct answer.