Pardon? I don’t understand the question
Answer:
Constant variables
Explanation:
Elaina's investigation lacked the critical ingredient of constant variables which are important components of every scientific investigation. In every research, there are 3 important variables, namely:
1. Dependent variables: the actual variable to be measured during the course of investigations and whose values are dependent on another variable (independent variable) supplied by the investigators.
2. Independent variable: one of the variables that are supplied by investigators whose values are often manipulated to see the kind of changes it will cause to the dependent variable.
3. Constant variables: other variables that are neither independent nor dependent but constant for all the various experimental groups in investigations.
According to uniformitarianism, (C) the rate of geolgic processes remain the same over time, and the processes themselves remain the same.
Hey there!
Your answer is:
There are alternate versions of a gene.
Hope this helps!
Have a great day! (: