Answer:
They lose their end walls so the xylem forms a continuous, hollow tube. They become strengthened by a substance called lignin . Lignin gives strength and support to the plant.
Answer:
<u><em>C. DNA from the S bacteria is necessary for bacterial transformation to occur.</em></u>
Explanation:
These series of experiments determined that DNA is the genetic material which gives rise to a particular type of cell. As we can see, the S bacteria with degraded proteins were able to grow when the proteins and RNA were degraded. But they were not able to grow when their DNA was degraded. This experiment proved that proteins or RNA are not the genetic material, rather DNA is the material related to inheritance.
A scientific hypothesis is an educated guess that is made about an observation based on the prior knowledge of the scientist. Hypothesis are always testable.
An hypothesis can be tested through experimentation and it can also be tested through deductive methods.
Answer:
energy reduced fired plants
Explanation:
energy produced from coal fired plants is cheaper and more affordable than other energy sources
Answer:
I think the answer is D: Infrographic that shows carbon moving through ecosystems
