Answer: Microorganism activity affects soil acidity and the amount of organic matter in soil. It also affects the nutrient and mineral levels in soil as well as soil structure.
Explanation:
Quite sure C is correct ;) remember that humans are also placental mammals.
A ribosome coordinates translation.
The observation that members of a population are uniformly distributed suggests that the members of the population are competing for access to a resource.
Option B is correct.
What is a resource ?
A resource is any physical material constituting a part of Earth that people need and value. Natural materials become resources when humans value them. The uses and values of resources change from culture to culture and from time to time. Resources are spatially distributed varying in quantity and quality.
Why the resources are important?
Resources are necessary for citizenry because of the following reasons: Resources when used as a raw material satisfy the needs and comforts of human beings. Natural resources are a source of agricultural activities which adds to the economic importance. They also provide employment opportunities.
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