Answer:
First of all, we need to consider the impact of chemical waste from the fetilizers or pesticides. These chemicals may help plants grow, but there is also a very high chance they will affect other creatures like insects or make there way out to the river, put creatures living there at huge risk of dying because of these toxic chemicals.
Secondly, the area of land on out Earth is not infinitive. As we expand out farmland, we also have to burn down forrests or grasslands, take in away the natural animals' shelters. Many plants species are at risk of extinction because of this.
Thirdly, the same problem can also happen with the water resources. Only 3% of the water on Earth is save for us to drink, and especially to support agriculture. This also means that we are taking away a lot of water, and this can badly affect the animals which also need water to survive.
1/2 will be homozygous dominant brown and the other half will be heterozygous for brown
Answer:
your body cannotfilter liquid waste
I think the correct answer would be option A. If researchers want to use eDNA to look for an invasive species in a waterway, then the first they should do would be to collect water samples from the waterway in question. In any experimental research, it is always collecting samples the first step before getting any results. You cannot execute experiments without any samples and consequently you will not have any results. For this problem, the researchers would not be able to stain the gel, compare the samples and cut the DNA when samples from the waterway are not collected.
Answer:
Youngest ages are at the middle of the pattern (on the oceanic ridges) and the seafloor grows older moving outwards to each side of the middle. 4. Africa and South America used to be joined together in Pangea, but are now separated by the Atlantic Ocean
