2nd SET OF ATI TEAS 7 SCIENCE Q'

2nd SET OF ATI TEAS 7 SCIENCE Q's A botanist wants to determine if environmental temperature affects root growth. In her experiment, she creates 4 rooms at temperatures that vary by 5 degrees F. Each room gets 20seedlings of the same species, which she grows on agar plates for 60 days. Once a day, she measures the length of each seedling's root. At the end of 60 days, she compares the length of the roots with the room temperature. She finds the the room with the lowest temperature produced the longest roots. Which of the following is best identified as a hypothesis? The environmental temperature can affect the growth of a plant's root Plants need light to grow A colder environment produces longer roots Plants need 60 days in order to grow their roots - Qualified answersThe environmental temperature can affect the growth of a plant's root A botanist would like measure the root length of various seedlings. Which tool would be best? A ruler with precision to the half inch A microscope and a ruler A microscope with magnification to the 10th power A microscope and a ruler with precision to the millimeter - Qualified answersA microscope and a ruler with precision to the millimeter A researcher is conducting an experiment on root growth and light exposure. The researcher suspects that, since plants go underground, roots will grow better if they have less exposure to light. The researcher divides seeds into 4 groups. Group 1 has 20 seeds and is planted in dirt. Group 2 has 20 seeds and is placed in an agar dish exposed to light 2 hours a day. Group 3 has 5 seeds and is placed in an agar dish exposed to light 4 hours a day. Group