A student was given test tubes containing different protein concentrations. Some tubes contained more concentrated solutions and other tubes contained more dilute solutions. The test tubes were not labelled and she was asked to perform a test to determine which tube contained which protein solution.

Describe a test that she could carry out to try to distinguish between the protein solutions.

Which type of neuroglia is found outside of the brain?

Imagine that certain laws of physics could be ignored and you were able to travel vast distances in moments. now imagine that you traveled to an earth-like planet located light-years away that is known to support life. think about what you’ve learned in this unit and make an argument for what you think would be the dominant type of life form on this planet. consider whether a notochord is required for an organism to manipulate its environment and become a dominant creature.

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring