Can you me out ? (will medal if correct) even though streams that flow through valleys generally move very fast, the stream load is mostly made of suspended load. usually, bed load is only found in mountain streams with a high gradient. why? a: rocks and boulders are only found in gullies which are in the mountains b: streams with low gradients usually move slowly and cannot carry bed load downstream c: large rocks and boulders just aren't very common at lower elevations d: both a and b

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.

Which of the following statements is true of cells

The data below simulate what happened to peppered moths in england after the industrial revolution which statement best describes the process that produced one of the emding populations of moths ?light colored moths were selected for on light colored trees