Biology, 12.11.2020 16:50, hectorcal3652
A student investigated the effect of radiation on the germination of bean seeds. He thought that exposure to radiation would limit the seeds ability to germinate (grow) much like ultraviolet light causing skin cancer. Three hundred seeds were soaked in distilled water for one hour. They were then divided into three groups. One group was placed in a microwave oven on high for three seconds. Another group was microwaved on high for six seconds. The last group was not microwaved. The seeds were then planted in three separate flats and given the same amount of water. The flats were placed on the same windowsill with a constant temperature of approximately 27 degrees Celsius. Each day for two weeks the number of seeds that germinated each group was recorded.
Answers: 2
Biology, 21.06.2019 19:30, zmeister
What will happen to a population of predators if there is a sudden, temporary increase in the number of prey? a. the population of predators will be uniform with no change. b. the population of predators will increase first and then decrease slowly. c. the population of predators will increase continuously.
Answers: 2
Biology, 22.06.2019 03:00, hdhtvthjr
Which of the following are the ingredients that go into the plant and are needed for photosynthesis? select all that apply. 1.) soil 2.) seeds 3.) carbon dioxide 4.) minerals 5.) glucose (sugar) 6.) water 7.) light energy (sunlight) 8.) oxygen 9.) air
Answers: 2
A student investigated the effect of radiation on the germination of bean seeds. He thought that exp...
Mathematics, 21.01.2021 18:10
Mathematics, 21.01.2021 18:10
Mathematics, 21.01.2021 18:10