How are ecological interactions classified?

336

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Besides mercury which other heavy metals cause toxic pollution?

315

---

What is selective waste collection?

441

---

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

357

---

What are persistent organic pollutants (POPs?

414

---

Why the tropical forests are also known as stratified forests?

331

---

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

396

---

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

417

---

What is population growth rate?

394

---

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

427

---

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

332

---

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?

503

---

What is eutrophication?

441

---

What is a biome?

428

---

What is transgenic food?

370

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