Afault is

a. a place on earth where earthquakes cannot occur
b. a fracture in the earth where movement has occurred
c. the place on earth's surface where structures move during an earthquake
d. another name for an earthquake

2points what is the term for a female reproductive cell? a. egg b. chromatid c. allele d. fertilization

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.

What must be true for natural selection to heppen