Moving water, like streams and rivers, can create and change earth's surface features through both erosion and deposition. which list contains landforms created by river erosion? a) channels, canyons, and valleys b) dunes, deltas, and floodplains c) canyons, alluvial fans, and lakebeds d) floodplains, alluvial fans, and deltas

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 this assignment, you will analyze an example of speciation by researching the finches of the galapagos islands. then you will answer questions to construct explanations and draw conclusions based on the information you gather. someone plz !

Resperation is a way to release carbon back into the atmosphere