Biology, 24.09.2020 21:01, Conpolice1309
Students are experimenting with a substance that they think can be added to soil to increase the number of flowers a certain plant will make. They set up 20 pots of soil, each planted with the same type of seed. They divide the pots into two groups and add 15 drops of the substance to pots in one group and only 10 drops to pots in the other group. After the plants grow for four weeks, the students count how many flowers each plant has made.
What does this experimental investigation lack?
a control group
an independent variable
a dependent variable
a procedure
Answers: 3
Biology, 21.06.2019 15:30, ehaynie
*will mark brainliest for first correct answer* which of the following is most likely to affect the biodiversity of a park ecosystem? a. less rain than usual for several months b. ongoing pollution from a nearby factory c. park rangers plant a new type of tree d. disease wipes out an entire population
Answers: 1
Biology, 21.06.2019 21:00, alanrojas0142007
This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment
Answers: 1
Students are experimenting with a substance that they think can be added to soil to increase the num...
Biology, 07.01.2020 04:31
Mathematics, 07.01.2020 04:31
Mathematics, 07.01.2020 04:31