Answer:
Flood barriers are very affordable, lightweight metal barriers may be installed in different places and taken away when water disappears.
Explanation:
The step at which the researchers would do at the end of researching Edna is to amplify the amount of DNA.
Option (d);
<u>EXPLANATION:</u>
- The term EDNA means Environmental DNA.
- Invasive species in the waterway are the waterborne plants and animals who can likely cause effects to the human as well as the environment.
- If researchers want to use eDNA to look for invasive species in the waterway, they will first collect a sample.
- After cutting DNA into pieces, DNA would be precipitated in each sample.
- And in the end, the amount of DNA would be amplified in each sample to understand how it would cause harm to the environment.
<em>a)</em><em>All living and nonliving things consist of one or more cells.</em>
Tornado. The other choices can take years upon years
