What are some economic applications that can be generated by very biodiverse ecosystems?

401

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What is ammensalim?

345

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What is the respective importance of water, carbon, and nitrogen for the living beings?

586

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What is the gross primary production of an ecosystem? How does GPP relate to photosynthesis?

323

---

What are the main causes of the loss of the biological diversity nowadays?

472

---

What do numeric pyramids represent?

432

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In a numeric pyramid, is it possible the base to be smaller than the other levels?

613

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How different are the concepts of migration, emigration, and immigration

417

---

Is pollution always caused by humans?

402

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What is the group of aquatic beings composed of large number of photosynthetic beings?

386

---

Despite having a great biodiversity why, is the Amazon Rainforest under risk of desertification?

360

---

What are the factors that for influencing photosynthesis also interfere with the gross primary productivity?

404

---

What are the typical vegetation and the typical fauna of the tropical forests?

332

---

In which type of animals does the placenta exist? What is its main function?

5

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Why can the allantois be considered an adaptation to terrestrial life?

5

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