Explanation:
1). Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Chromosomes are not visible in the cell’s nucleus—not even under a microscope—when the cell is not dividing.
2) is pic
Answer:<u><em>When water freezes, it contracts, decreasing the water level in a lake. Water in a lake freezes from the bottom up, killing most aquatic organisms. When water in a lake freezes, it floats, providing insulation for organisms below.</em></u>
Explanation:
Its C
On large-scale cheese production, using bought-in cultures is essential because when the milk is coming from multiple farms, often collected over several days, and is pasteurised, the cheese-maker needs to repopulate the milk with lactic acid bacteria in order for it to acidify and to prevent 'bad' pathogenic bacteria
