NASA scientists must work together to make sure that everything is correct and accounted for when launching a shuttle. Besides a physicist, what other type of scientist would be helpful in making sure that the shuttle has the appropriate type and amount of fuel to reach its destination?

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

After reading the paragraph below, answer the questions that follow. researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. the robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract. all of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. this is an example of a. emergent properties of cells. b. energy flow through an ecosystem. c. adaptation. d. internal environment regulation.

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