what are the difference between migration, emigration, and immigration?

337

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Define commensalism?

278

---

Define biotic potential?

390

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What is the respective importance of carbon for the living beings?

401

---

Explain the main biological process that consumes carbon dioxide?

334

---

Explain the main characteristics of the age pyramids of developed countries?

367

---

Which harms can thermal inversion cause to humans?

288

---

Can food chain present quaternary consumers without having secondary or tertiary consumers?

331

---

Explain why waste is considered one of the major environmental issues?

362

---

Define water cycle?

301

---

Explain how do the availability of water and light and the climate affect the growth of a population?

484

---

Define a population?

362

---

Why does thermal inversion increases air pollution?

317

---

Define biodiversity?

299

---

Define a biodigester?

349

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