Answer: Positive charge of 1
Explanation: This is because it is believed that it is from the charge of the quarks that make up the nucleons which are protons and neutrons.
All of these birds share a common ancestor
Hope i helped :3
Answer:
Scientists repeats the steps in cycle mode and in order to be sure about the results he/she chosen.
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.
