Density Change is when the mass/weight of an object modifies by sometimes its environment. It relates to pond life by how much weight thats in the pond and the mass of creatures, such as frogs and crocidiles
A change in which no new substance is formed is called a physical change.
Examples: Crushing a can, Melting an ice cube, Boiling water, Breaking glass, Dissolving sugar in water, Shredding paper, and Chopping wood.
All of these examples may involve a change in shape, form, or appearance, but it DOES NOT involve a change in the molecule structure.
Answer:
Human cells and bacterial cells both have mitochondrial and dna. human and bacteria cells share common genes.
If you're referring to the book, the author is Nicholas Moreno.
Tobacco use and exposure to secondhand smoke. Poor nutrition, including diets low in fruits and vegetables and high in sodium and saturated fats. Lack of physical activity.
Some causes of chronic diseases include: tobacco use and exposure to secondhand smoke- secondhand smoke is when the people/person around you is/are/were smoke/smoking, not you- Poor nutrition- including diets low in fruits and vegetable and high sodium and saturated fats-. Lack of physical activity is also another cause.
To prevent a chronic disease from happening, you should control what kinds of food you eat to maintain a healthy diet. If someone in the room with you starts smoking, you should politely ask them to stop or exit the room. If someone asks you if you want to smoke, say no. Exercise at least 15 minutes a day.
