Define biosphere?

489

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What are tropic levels?

314

---

Define a food chain?

380

---

Which type of energy is the light used in photosynthesis transformed.

269

---

Define inharmonious ecological interaction?

406

---

Define population density?

333

---

What is the typical fauna of the tropical forests?

398

---

Explain the main types of waste?

291

---

Define transgenic food?

359

---

Explain the main factors that affect the growth of a population?

332

---

How does net primary production relate to the energy pyramids?

395

---

What are colonies?

345

---

What is plankton?

463

---

Explain why transgenics are considered a threat to the environmental safety?

247

---

What are interspecific ecological interactions?

375

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