Light waves are compressed into higher frequencies
Why is it important: It helps us adapt to our environments and become more stable in our environments.
What is it: The change of traits that can lead to better adaptation in our ecosystems.
(I'm not completely sure, but if you have zero clues I recommend just trying this if you get no other answer. Good luck!)
Answer:
hope this makes sense
Explanation:
In an experiment, data from an experimental group is compared with data from a control group. These two groups should be identical in every respect except one: The difference between a control group and an experimental group is that the independent variable is changed for the experimental group, but is held constant in the control group.
Answer: 2
Explanation: There's X (female) and Y (male).