Mathematics, 21.05.2020 03:59 bella2017
Mr. Mann's class conducted an experiment about plant response to the presence of water. They first planted pea seeds in the sand. To start with, they watered the seeds. Once the seeds began to grow, they reduced the water they gave the plants. Instead, they placed a porous container of water close to the growing plant to see if the plant's roots would grow towards the cup of water. In science language, this plant response is called hydrotropism. An illustration of the experimental design can be seen here. What is the manipulated variable in this experiment?
A) plant root growth
B) the sand used to grow the seeds
C) limited watering, replaced by the cup of water
D) the water used to germinate the seeds and get them growing
Answers: 1
Mathematics, 21.06.2019 16:40
According to the number line, what is the distance between points a and b? v ++ + + + + -16 -14 -12 -10 -8 + 6 + 4 + -2 + 0 + 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 o6 units o 7 units 12 units o 14 units
Answers: 1
Mathematics, 21.06.2019 17:40
Aperpendicular bisector, cd is drawn through point con ab if the coordinates of point a are (-3, 2) and the coordinates of point b are (7,6), the x-intercept of cd is point lies on cd.
Answers: 2
Mathematics, 21.06.2019 18:00
Kayla has a $500 budget for the school party.she paid $150 for the decorations.food will cost $5.50 per student. what inequality represents the number of students,s, that can attend the party?
Answers: 1
Mr. Mann's class conducted an experiment about plant response to the presence of water. They first p...
Physics, 13.10.2019 16:30
Biology, 13.10.2019 16:30
Mathematics, 13.10.2019 16:30
Biology, 13.10.2019 16:30
English, 13.10.2019 16:30
Mathematics, 13.10.2019 16:30
Health, 13.10.2019 16:30
History, 13.10.2019 16:30
History, 13.10.2019 16:30
Physics, 13.10.2019 16:30