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The Brazil Nut Tree, Bertholletia Excels (N = 17), Is

question 80

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The Brazil nut tree, Bertholletia excels (n = 17) , is native to tropical rain forests of South America. It is a hardwood tree that can grow to over 50 metres tall, a source of high-quality timber, and a favourite nesting site for harpy eagles. As the rainy season ends, tough-walled fruits, each containing 8-25 seeds (Brazil nuts) , fall to the forest floor. Brazil nuts are composed primarily of endosperm. About $50 million worth of nuts are harvested each year. Scientists have discovered that the pale yellow flowers of Brazil nut trees cannot fertilise themselves and admit only female orchid bees as pollinators. The agouti (Dasyprocta spp.) , a cat-sized rodent, is the only animal with teeth strong enough to crack the hard wall of Brazil nut fruits. It typically eats some of the seeds, buries others, and leaves still others inside the fruit, which moisture can then enter and allow the remaining seeds to germinate.
-The large white part of a Brazil nut that people eat serves which of the following functions in nature?

Definitions:

Virtual Reality Exposure Therapy

A therapeutic technique that uses simulated environments within virtual reality to expose individuals to situations related to their psychological issues in a controlled manner.

Aversive Conditioning

A form of behavior therapy that involves repeated association of an undesired behavior with an unpleasant stimulus to reduce the behavior.

Double-blind Procedure

A study design in which neither the participants nor the experimenters know who is receiving a particular treatment, to prevent bias in research results.

Joseph Wolpe

A psychiatrist known for developing systematic desensitization, a process used to reduce phobias and anxieties.