Answer:
DNA and proteins
Explanation:
By comparing these specific molecules in two different species, scientists can determine how closely related the species are.
Answer:
Bacteria
Explanation:
The organism is bacteria because it performs photosynthesis and can propel itself with flagella. It is not an animal because it can photosynthesize and it is not a plant because it has flagella like bacteria does.
<span>If a nurse uses just a wet paper towel to turn off the taps on the sink after washing, she will likely contaminate the surface of sterile items. This is not the proper procedure or protocol, and can make sterile items unsafe and dangerous due to bacteria and spreading of illnesses.</span>
Answer:
The pitch is the independent variable.
The dogs are the dependent variable.
Explanation:
An independent variable is something that you can control such as how high or low the pitch is. The dependent variable is the variable that is dependent on the independent variable. The dependent variable is the one that shows the results.