Biology, 20.10.2020 05:01, YokoUndera
Mrs. Lewis set up a lab for her biology students using a culture of the small crustacean Daphnia, obtained from a pond that was 20°C. The students are to investigate the effect temperature has on Daphnia. The students will observe the crustacean’s heartbeat under the microscope, at different temperatures, and count the number of heartbeats per sec. What is the independent variable in this experiment? 5 points
Answers: 3
Biology, 21.06.2019 23:50, jennamae9826
Which statement about the immune system is false? a. lymphocytes reduce inflammation, b. b cells remember specific pathogens. c. most white blood cells kill bacteria d. white blood cells are made in lymph nodes.
Answers: 1
Biology, 22.06.2019 04:00, jorgepas66
The tubes transporting minerals and water upward are called ?
Answers: 1
Mrs. Lewis set up a lab for her biology students using a culture of the small crustacean Daphnia, ob...
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