A biologist is examining several leaves of a plant. She covers the top of one leaf
with petroleum jelly. She covers the bottom of a different leaf with petroleum
jelly. She leaves a third leaf alone. After several days the leaf that had petroleum
jelly on the bottom side of the leaf has shrunk. The scientist states that leaves
must take in water through holes on the underside of the leaf. What type of
statenfent does this represent?
observation
inference
prediction
O hypothesis
Answers: 3
Biology, 22.06.2019 02:00
For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a.control b.hypothesis c.procedure d.system
Answers: 2
Biology, 22.06.2019 07:30
In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?
Answers: 3
Biology, 22.06.2019 11:00
You want to cultivate some exotic plants at your farm. however, the climate is chillier than the temperature range favorable to the crop. which is the best method to use for the cultivation of this exotic crop? a. use a crop rotation method b. use a lot of fertilizer c. prepare the seed bed properly d. use a greenhouse e. use irrigation
Answers: 1
A biologist is examining several leaves of a plant. She covers the top of one leaf
with petroleum...
Health, 31.07.2019 09:30
Social Studies, 31.07.2019 09:30
Business, 31.07.2019 09:40
Biology, 31.07.2019 09:40
Mathematics, 31.07.2019 09:40
Business, 31.07.2019 09:40
Biology, 31.07.2019 09:40
Business, 31.07.2019 09:40
Biology, 31.07.2019 09:40
Mathematics, 31.07.2019 09:40
History, 31.07.2019 09:40
Business, 31.07.2019 09:40
Mathematics, 31.07.2019 09:40