Hello!
Roles humans can play to balance nature :
- Plant more trees to account for the loss of trees caused by deforestation
- Conserve energy so we don't overuse our natural resources
- Cause less pollution by contributing to more eco-friendly activities
Solar energy is used by plants to make food for themselves and other organisms as well. Plants lie on the bottom of the energy pyramid or first on the food chain. This is because they are producers and other organisms gain energy from them. Solar energy plays a very vital role here, because the process of photosynthesis, which takes place in plants, is incomplete without solar energy. Therefore, we can say it is an ecosystem service. Solar energy is gained by plants, converted into chemical energy and biomolecules are produced. Without this, food web can't survive.
<h2>Answer:</h2>
When the crossing over results in both mutant alleles on one chromosome and the other chromosome will be mutation free.
<h3>Explanation:</h3>
During the meiosis chromosomes are present in homologous form in a pair.
They exchange their genetic material with each other. This exchange is random and usually genetic material on the ends/telomere changes with the homologous chromosome.
In given condition the exchange is in such manner that the mutant allel of one chromosome shifts to other during crossing over. While other chromosome also contains its own mutant allele and does not exchange it during crossing over.
Answer:
B. presence of oxygen in the atmosphere
Explanation:
I took the same test and got it right
