Answer:
Yes
Explanation:
A high quality DNA sample will have a 260/280 ratio of around 1.8. This value means that the DNA is sufficiently pure and free from other contaminants that could affect downstream experiments and analysis.
The ratio for this sample is 0.489/0.257 = 1.9
This is close to 1.8, and therefore the sample is of sufficient quality ot use downstream.
C the only reasonable answer because if some amount of grass and fruit available were destroyed and they wouldn’t be as much of supply food for them so the some would have to migrate and some would die.
You don't need to push the wheelbarrow down the beach. Instead, fill it up with sand. "It starts by going around with a bucket and shoveling and collecting all of the plastic debris that you see," said Aivazian. The water from the hoses pushes the plastics to the surface and separates them from the sand.
