Question

Stella wants to test the hypothesis “If carbon dioxide levels increase, the growth rate of sunflowers will increase.” She places five young sunflower plants into similar containers and sets up pumps that release different amounts of carbon dioxide into each container. She plans to measure the daily height of the plants for two weeks and graph the data. Which additional considerations would produce the most reliable experimental results?

Answer 1

yes ! sunflower show more grown as we increase co2 level

Because sunflower is a C3 plant ( c3 cycle means calvin cycle)

As all plant are c3 plant but there is some plant which show c4 cycle also like sugercane

Well sunflower plant not show c4 cycle ..

And c3 plant require more co2 conc. than c4 plant

And in our environment co2 level is 0.003% which is sufficent for c4 plant but c3 plant require 0.004%

So as the co2 level increase their productivity also increase.

Hope you like it

Answer 2

Answer:

b

Explanation:

yes