Answer:
1 factor deffer which is independent variable which is controled in control groups
A vascular plant is a plant that is characterized by the presence of conducting tissue.
The answer is the the mangoes start migrating again so it’s D and they eat all of them
The well - designed experiment test one factor at a time. The answer to the question above is letter A. 1. The items that are being tested are the independent variables and that they cause the dependent variables to change.
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Answer:</h3>
Vertebrates have backbones, while invertebrates do not.
Humans, for example, are vertebrates because we have backbones.