![subject](/tpl/images/cats/biologiya.png)
Biology, 23.07.2019 14:00 ricksterv5000
Part a - experimental technique: manipulating movement of compounds from the coleoptile tip the hypothesis that a mobile compound produced in the coleoptile tip controlled its bending toward directional light was tested by p. boysen-jensen in 1893. his experimental setup is represented below. both dark and light treatment groups had intact coleoptiles as controls. the experimental groups included: coleoptiles in which the tips were removed coleoptiles that were cut with the tips separated by mica coleoptiles that were cut with the tips separated by agar boysen-jensen left one set of coleoptiles in darkness for 24 hours and one set in directional light for 24 hours and observed whether they elongated and/or bended toward the light.
![ansver](/tpl/images/cats/User.png)
Answers: 1
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Biology
![question](/tpl/images/cats/biologiya.png)
Biology, 21.06.2019 18:50
Football players often sustain lateral blows to the extended knee. which of the ligaments is (are) damaged as a result? a. suprapatellar b. oblique popliteal and extracapsular ligament c. medial collateral, medial meniscus, and anterior cruciate d. arcuate popliteal and the posterior cruciate
Answers: 2
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 14:30
The diagram shows the development of the oocyte and the follicle during the menstrual cycle. identify at which stage in the cycle the hormone levels are at their highest and most active.
Answers: 1
![question](/tpl/images/cats/biologiya.png)
Biology, 22.06.2019 15:30
Modern computers can store about as much information as the human brain. true false its false i took the test
Answers: 2
You know the right answer?
Part a - experimental technique: manipulating movement of compounds from the coleoptile tip the hyp...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 24.08.2019 07:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 24.08.2019 07:30
![question](/tpl/images/cats/istoriya.png)
History, 24.08.2019 07:30
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 24.08.2019 07:30
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 24.08.2019 07:30
![question](/tpl/images/cats/obshestvoznanie.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 24.08.2019 07:30
![question](/tpl/images/cats/health.png)
![question](/tpl/images/cats/geografiya.png)
Geography, 24.08.2019 07:30
![question](/tpl/images/cats/istoriya.png)
History, 24.08.2019 07:30