8: this model is similar to a real life model because it shows what you can have in and around your house
9: the way this model can be useful is by helping show how to build your house the way you want it to be and what you would want
Muscular tissues or cells expand and contract to move the body
An atom that gains a negative electron, it becomes a negative ion. If it loses an electron it becomes a positive ion. Some atoms lose electrons and become positive ions. Others gain electrons and become negative ions.
Answer:
Forests
Explanation:
Without forests the carrying capacity of an ecosystem would decrease because there would be a smaller number of habitats for wildlife.
hope this helps
Two equal/same traits from both parents
