Answer:
b. Genetically engineered trees could have unexpected interactions with organisms of natural ecosystems.
Explanation:
A genetically engineered tree has had it's dna undergo certain modifications through the use of genetic engineering techniques. Such trees are made to have faster growth rate, resistance to insects and diseases. Environmentalists are concerned about these trees and how they could affect the natural environment causing adverse effects to the natural organisms of the ecosystem.
Answer:
If the petri plates are kept open for the longer duration of time then there are chances of cross contamination.
The contamination can be defined as growth of undesired microbes in the petri dishes or tubes which is no longer useful for the experiment.
The tube if kept open will develop the growth of contaminants in it. It can be cross contamination as well.
To avoid contamination the tubes and dishes should not be kept open for a longer duration of time.
Answer:
Explanation:
The invasive species put back nitrogin that the soil was missing. The didn't need the extra nitrogen and put it back into the ground.
1. without the atmosphere we would be freezing to detah
2. The atmosphere also protects us living things on Earth from the sun's harmful ultraviolet radiation
3.It also protects us from objects coming towards us from the sky such as a meteorite
4. It also provides oxygen for humans and animals so that we can breathe and also carbon dioxide for plants
I hope this helps!
Look up intelligent design. Intelligent design is an acceptance and understanding of both creation and evolution going together.
