Number one is B also number 2 is also B because I did it before
Answer:
A
Explanation:
The top answer is correct, over time it has become weaker.
Answer:
2, 3 and 4 only.
Explanation:
Mutations refer to change in genetic content or alterations of DNA which might be as a result when the DNA is copied or due to environmental factors like Ultraviolet radiation.
Majority of mutations have neither positive or negative effects on organisms the occur and they are called neutral mutations.
An example is silent points mutations which does not alter the amino acids it's encode.
Some Mutations have positive effects and some have negative effects which cause genetic disorder.
Explanation:
A high level of biodiversity leads to a better sustainability of the natural environment.
- Biodiversity is the variation of plant and animal species in an ecosystem.
- The natural environment deals with the living and non-living part of the ecosystem.
- A wide range of diversity in the ecosystem brings in broader level of interaction among the different constituents of the environment.
- Biodiversity ensures there is no over dependence on a particular resource in the environment. Organisms have access to a pool of resources.
- In adverse times, it ensures that quite a number of organisms are still able to live and thrive well.
Learn more:
Biodiversity brainly.com/question/10723602
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