The answer to number 6 is a.
Answer:
True
Explanation:
because it can be a limiting factor in an ecosystem
An mRNA template is used to create a DNA strand.
B. One
because an independent variable is something you change. So in a scientific experiment you only change one thing. If you happen to change more than one thing then the test becomes unfair therefore you should repeat and make sure that only one thing is changed this time.
