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How do soil organisms improve soil

Why do some organisms evolve very rapidly and others over millions of years?

Which of the following is the correct term for the process by which nitrogen returns to the atmosphere? ammonification assimilation denitrification nitrification

Choose all the answers that apply. Ecosystems: 1. are limited by the amount and quality of its soil 2. contain both living and nonliving factors 3. closely follow the world's climate zones 4. recycle and reuse matter 5.

Which part of a chloroplast is not involved in the light reaction? A. Thylakoid membranes B. ATP synthase C. The stroma D. The grana

When is facilitated diffusion necessary? a. When the molecules are too large. b. When the molecules are insoluble. c. When the direction of movement is opposite to natural diffusion. d. none of the above

G1, S, and G2 are all phases of which part of the cell cycle? a. interphase b. anaphase c. prophase d. telophase

What is the strongest bone in the human body?

Based on what you were told about the reproduction of the snails, write a question that could be researched

Explain why an ecological pyramid can be used to illustrate energy flow from one trophic level to the next in an ecosystem.