If the sentences after the question are multiple-choice, I believe it is the second sentence (New information is discovered that contradicts the existing theory).
Answer:
Chromosomes will be seen in the nucleus of dividing cells (during mitotic and meiotic cell divisions) because they are visible when a cell is dividing as oppose to non dividing cells. Also, all processes of cell division from prophase, metaphase, anaphase to telophase will be seen :)
For population to be healthy, factors such as food nutrients water and space must be available, limiting factors include low food supply and lack of space. Limiting factors can lower birth rates increase death rates or lead to emigration
Answer:
protein and energy
Explanation:
if you look close at the wall of a plant it has cellulose and hemicellulose.