The excerpt is from an article that Roberto read for science class called “Using the Scientific Method to Study Tomatoes.”
The student performed an experiment to test his hypothesis about sunlight and plant height using two plants. He kept everything the same between two tomato plants except he exposed them to different amounts of sunlight. He also used a third plant as a control group, or a group in which no variables are manipulated to confirm the results.
Roberto critiqued the work. Which problem did Roberto most likely identify?
The sample size is too small.
Too many variables are manipulated.
It is not possible to keep the conditions the same.
Controls should only be used in studies of animals.
Answers: 1
Biology, 22.06.2019 02:30
How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?
Answers: 3
Biology, 22.06.2019 05:20
Which of the following two events occur to create a sea breeze? select all that apply. warm air rises on the ocean and moves toward the land to cool warm air rises on land and moves toward the ocean to cool cool air moves from the ocean to be warmed by the land cool air moves from the land to be warmed by the ocean
Answers: 2
Biology, 22.06.2019 21:00
Which statements about a food chain are true? choose all answers that are correct. a.plants are the first living organisms in food chains on land. b. the plants in a food chain are called herbivores. c. all food chains on land begin with energy from the sun. d. carnivores in a food chain eat only plants.
Answers: 1
The excerpt is from an article that Roberto read for science class called “Using the Scientific Meth...
History, 04.02.2021 07:40
Computers and Technology, 04.02.2021 07:40
Mathematics, 04.02.2021 07:40
Social Studies, 04.02.2021 07:40
Mathematics, 04.02.2021 07:40
Mathematics, 04.02.2021 07:40
Physics, 04.02.2021 07:40
Mathematics, 04.02.2021 07:50
History, 04.02.2021 07:50
Mathematics, 04.02.2021 07:50
Mathematics, 04.02.2021 07:50