In an ecosystem, there are always more - A. predators than prey, B. producers than consumers, C. carnivores than omnivores, D. heterotrophs than autotrophs

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 is the inability of an individual or a society to achieve a minimum standard of living known as ?

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?