Independent: The second group is not given the drug.
Dependent: Dr. Smith wants to examine weather a new drug increases the maze running performance of older rats.
Constants: Dr. Smith teaches two groups of older rats to find a piece of tasty rat chow in the maze.
Answer:
10 meters/second.
Explanation:
Unladen swallow consists of two species are <em>Hirundo domicella </em>and the <em>Hirundo spilodera</em>.
The average speed of unladen swallow comes out to be 10 meters/second. The maximum speed can go upto 13-14 meters/second. The speed of unladen swallow can be calculated by the formula given by Graham K. Taylor. According to graham the speed of unladen swallow is 3 times of the product of frequency and amplitude. ( v= 3fA, v is velocity, f is frequency and A is amplitude).
Your answer is phosphorus
Please give brainliest
Answer:
We may consider bees good because they pollinate the plants that give us food crops. We may consider mosquitos bad because they can transmit malaria.
In this virtual lab, grow two species of paremecium in test tubes and record data on their population growth. Experiment shows that when grown together, one species will die, illustrating the competitive exclusion principle.
