Why were physical activity and caffeine and alcohol intake the controlled variables?

1 answer:

4 0

Controlled variable is a variable that was made constant in the research. That was because the controlled variables can influence the dependent or independent variable. If the variables is not made constant, it can alter the research result and made it invalid.

In this case, the caffeine and alcohol intake might alter the physical activity or the blood glucose so it should be controlled.

You might be interested in

Read the passage below about acupuncture. Acupuncture is an alternative medicine that uses wire-thin needles inserted by a train

Lera25 [3.4K]

The National ... reduces nausea and vomiting, although it is unclear how it works. This sentence provides specific evidence from a scientific organization.

3 0

4 years ago

Read 2 more answers

Drag the labels to their appropriate locations in the flowchart below, indicating the sequence of events in the production of fr

matrenka [14]

(Complete question attached)

Answer:

Pol III binds to 3' end of primer B
Poll III moves to 5' to 3',adding DNA nucleotides to primer B
Pol I binds to 5' end primer A
Pol I replaces primer A with DNA
DNA ligase links fragments A and B

Explanation:

Both strands of parental DNA acts as a template for the synthesis of new DNA. The site of synthesis is called replication fork because the daughter strands look similar to two-pronged fork. The strands formed from Okazaki fragments(short sequences of DNA nucleotides) is called the lagging strands, which is synthesized in short fragments and in the opposite direction. While the strand that is synthesized continuously and in the same direction as the movement of the replication fork is called the leading strand. Both strands are synthesized in a 5'→3' direction. DNA ligase join these fragments together.