The Mayans lived in jungle like areas, where there is a lot of vegetation and it rains frequently
Essentially, a control variable is what is kept the same throughout the experiment, and it is not of primary concern in the experimental outcome. Any change in a control variable in an experiment would invalidate the correlation of dependent variables (DV) to the independent variable (IV), thus skewing the results.
<span>palisade and spongy layers of the mesophyll are </span>the two layers of the plant containing chloroplasts
You could buy 1 bigger sheep and breed it with a smaller one :D
hope this helps
