Bio 8 - Explain the five things plants require in order to grow

Bio 8

List and briefly explain the five things plants require in order to grow. Why is each one of these necessary?
Your response must be a minimum of 75 words.

Briefly describe what an allele is, then discuss the differences between dominant and recessive alleles. Provide an example of each type of allele in your discussion.
Your response must be a minimum of 75 words.

What are fats and how are they used by the body? List five foods that are rich in fat. Briefly explain what essential fatty acids are, where they come from, and how they might be helpful concerning health.
Your response must be a minimum of 75 words.

What are Darwin's four observations concerning natural selection? List and briefly explain each one with an example. How does natural selection impact evolution?
Your response must be a minimum of 200 words.