Idk bc im just waiting for my question to be answered soooo byee...srry i couldnt help lol
Answer:The timing of the cricket's depends on the temperature of the box
so the answer should be
timing of the cricket's chirps
Explanation:Hi!
There are a few types of variables in these types of experiments. They are independent, dependent, and controlled.
The independent is the one changed by the scientist, or in this case, the temperature. The controlled is the things that remain constant through every case, and the dependent is what is being observed, seeing if it changes through the altercation of the independent variable.
In this case, what is being observed is the timing of a cricket's chirps, because it is being watched whether or not temperature affects it.
Therefore, your answer is the third choice, or the timing of the cricket's chirps.
Hope this helped!
Hi your answer is definitely going to be B
Answer:
Explanation:
The total solution formed after mixing the components will be
20 μl + 20 μl + 40 μl + 120 μl = 200 μl
The smallest size tube that will hold the entire reaction is:
Firstly convert 200μl to ml
1000 μl = 1 ml
200 μl = X
X = 200 x 1/1000
X = 0.2 ml
The smallest size tube (from the options provided in the question) is 0.25 ml.
The pipetting device that could be used to accurately measure all the needed volumes must be able to measure 20 μl, 40 μl and 120 μl.
The best pipette to accurately take these measurements individually is the P200 micropipette because it has an accurate/useful range of between 20 μl - 200 μl
