A pathway by which a chemical element or molecule moves through both biotic and abiotic compartments of an ecosystem.

What are at least 5 important words associated with the water cycle? What do they mean? Why are they important?

What is the difference between mrna and trna

Why does the human heart rate increase when exercising?

Describe the steps of mining, smelting, and refining that are used to extract minerals or elements from ores. When is a mineral considered to be an ore?

brian is talking about evolution with a friend the friend says its just a theory so i dont believe it when they prove it and it becomes the law of evolution then maybe ill change my mind which of these possible replies best describes scientific

What type cell undergoes meiosis?

What type of instrument measures seismic waves? A. Mercalli scale B. Seismogram C. Seismic scale D. Seismometer

Which of the following is composed of two layers of lipids and protects the cell from the surrounding environment? Select one: a. cytoplasm b. cholesterol c. cell membrane d. carbohydrate

Predict how the thickness of cuticle and the number of stomata differ in plants from wet habitats versus dry habitats. drag the appropriate items to their respective bins.

Dementia is defined as