3. Why do you think scientists use mice to study cancer?

Well Like humans, mice naturally develop diseases that affect these systems, including cancer and diabetes. Immunodeficient mice (mice without a fully functioning immune system) can also be used as hosts to grow both normal and diseased human tissue. This has been a useful tool in cancer and AIDS research.

Also for expermients many of there tissues are like humans so they get a result the same that a human would get as well.

Explanation:

Hope this helps!

answer; /// i really don't understand your question/statement.but/lions do fight over territory and breeding rights, sometimes to the death,this is called( i hope this answered your luck

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.