The DNA of every eukaryotic cell is stored in one or more located in the . 2. Before a cell divides, it copies all of its chromosomes. While the two copies of a chromosome are attached they are called . 3. A duplicated chromosome remains tightly paired with its partner at a region called the . 4. DNA and protein together form a complex called . 5. Chromosomes contain most of the cell's which acts as the molecule of heredity.

Which of the following is an example of competition that could be found in a forest? question 14 options: deer eat berries and their droppings seed new areas creating more berry bushes two fox populations utilize the same rabbit population as their main food source two hawk populations utilize the same scorpion population as their main food source lack of sunlight due to changes in the seasons restricts the growth of certain plants

Which of the following molecules could pass through the plasma membrane by simple diffusion? a. na+ ions b. glucose c. amino acids d. carbon dioxide

How has biodiversity on earth changed over time?