Question

which two of the following sentences include central ideas of the article?

1. the theory of evolution encompasses a well - established scientific understanding: life on our planet has changed over long periods of time, and life continues to change according to a particular process.
2. similarly, our understanding of the process of evolution has changed over time and continues to change.
3. there are two major components to the theory of evolution: natural selection and the nature of inheritance.
4. the complex details of cellular processes - which seem very small - are responsible for the amazing diversity of life on our planet.

1 and 3
2 and 4
2 and 3
1 and 4

Explanation:

Sentence 1 presents the core concept of the theory of evolution, which is that life has changed over time and continues to change. Sentence 3 identifies the two main components of the theory of evolution, natural selection and the nature of inheritance. These two sentences are fundamental to understanding the theory of evolution.
Sentence 2 focuses on the change in our understanding of the evolution process, which is not the central idea of the theory itself. Sentence 4 emphasizes cellular processes and biodiversity, which is a more specific aspect rather than a central idea of the theory of evolution.

Answer:

1 and 3