Plant cell needs cell wall whereas animal cell do not because the plants need rigid structure so that they can grow up and out . All cells have cell membranes, and the membranes are flexible. So animal cells can have various shapes, but plant cells only have the shapes of their cell walls.
Answer:
Natural selection leads to evolution due to the way reproduction works. In the example of European moths during the industrial revolution, we can see this clearly. When the industrial revolution was going, there was more pollution, hence darkening the skies and leaving ash. Moths, which before were white with occasional black spots dominated the area until pollution effected their environment. Whiter moths were eaten by bird who could easily see them against the black trees and skies. These moths could no longer reproduce, they were dead. Moths with more black could survive longer to reproduce because they were harder to see. As time went along, the moths turned mostly black, showing an example of evolution.
C- repeated trials allow to assess the accuracy of data being received as an average can be taken. Also, precision can be assessed. The validity of the method, reliability, repeatability. All can be assessed
Answer:
A,C,T, and G
Explanation:
adenine-A cytosine-C thymine-T guanine-G
Answer:
Filtering to obtains breadcrumbs and the heat the salt solution to saturation and cool it
