How are ecological interactions classified?

303

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Besides mercury which other heavy metals cause toxic pollution?

267

---

What is selective waste collection?

408

---

What is plutonium reprocessing? Why is it a big environmental issue?

325

---

What are persistent organic pollutants (POPs?

370

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Why the tropical forests are also known as stratified forests?

289

---

What is competition? Which type of ecological interaction is competition?

363

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How does the vegetal stratification of an ecosystem influence the biological diversity?

354

---

What is population growth rate?

348

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What are the typical vegetation and the typical fauna of the taigas?

398

---

What is the difference between the concepts of food chain and food web?

298

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In the short range what will happen to the levels above and below a population of secondary consumers of a numeric pyramid if a large number of individuals from this population dies?

464

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What is eutrophication?

395

---

What is a biome?

396

---

What is transgenic food?

321

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