1. Model how low mass stars become white dwarves. Draw a picture

 

2. Model how medium mass stars become neutron stars. Draw a picture

 

Describe the structure of the cell membrane. Draw a picture of amembrane, and include a bar showing the distance scale. Be sure toexplain what sorts of molecules make up a membrane. Give examplesof special jobs the membrane has. Explain. Why structure is stablein a saltwater environment?

Answer each question with about 4 sentences. TYPED please. NOPICTURES

1.WIens law what is it and what does it tell us about stars?

2.Name 4 objects in our solar system that has craters.

3.Why would spacecraft land on an asteroid?

4.What are tectonic plates? What do they do? Where else besidesearth might they be found?