Answer:
the petrified log looks like the original tree.
Explanation:
A tree to be petrified first needs to be buried. An element laying on the surface can not be petrified because it is exposed to many different factors (such as<em> organisms, microorganisms, climatic conditions</em>, etc.), that affect the petrification process. So, in the case of a fallen tree, first, it needs to be covered by many sedimentary layers. Once it is underground, it also needs the presence of underground water and minerals. Water replaces the original organic material with minerals (silica, calcite, and pyrite). This replacement process results in the conversion of the woody material into a fossil of the original material. Very often, the tree details are so preserved that the fossil looks exactly like the original trunk.
Depending on the preservation degree, a fossil can be useful for different studies about the past.
Answer:
These reactions are collectively called the urea cycle or the Krebs-Henseleit cycle. Ammonia is a toxic product of nitrogen metabolism which should be removed from our body. The urea cycle or ornithine cycle converts excess ammonia into urea in the mitochondria of liver cells.
Answer: 1) Organism X is positively affected by the relationship and organism Y is negatively affected
Explanation: the predator eats the prey, so the predator benefits but the prey is killed. parasites are heterotrophic organisms that live on or in another living thing and do harm to it while they themselves benefit. <3
I would say that C. Is the most correct answer. Hope this helps! :-)
I think there planning it for races and for people to get in and not have to drive the car while the car does all the work which it has to be really good and possible because if it is not it can have very bad consequences that affect us all badly and may not be the best time to have those things hurt people like they already tried something like this and failed and hurt people lets hope these people will at least exceed because this evention has a good and bad side that we need to make sure it cant become a threat or hurt us
