<span>1.artifical selection
2.geographical distributio
3.embryology
4.fossil record
5.DNA
6.homologous structures
7.watching natural selection happen</span>
I'm not sure about number 1 or number 6, but I know that 3 is nucleic acid and 5 is solution.
Leaves change color due to changes in length of daylight and changes in temperatures, the leaves stop their food-making process. The chlorophyll breaks down, the green color disappears, and the yellow to orange colors become visible and give the leaves part of their fall splendor.
Sources - Google
Answer:
C6H12O6 + 9O2 → 6CO2 + 12HO
Explanation:
It is very important to control the conditions of an experiment because FAILURE TO DO THIS WILL MAKE THE RESULTS OF THE EXPERIMENT INVALID.
A controlled experiment refers to an experiment that is conducted under controlled conditions. Conducting experiments under controlled conditions helps scientists to minimize the changes in all other variables with the exception of the ones been tested.
