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Conservation of Biodiversity: Defense Strategies and Toxins

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Conservation of Biodiversity: Defense Strategies and Toxins

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Questions and Answers

Which species allow testing the role of epigenetic inheritance?

Oak tree, Maple tree, Pine tree

Sunflower, Daffodil, Rose

Fountain grass, Alligator weed, Japanese knotweed (correct)

Tulip, Lily, Orchid

What can environmental stress lead to in terms of heritable changes?

Changes in protein synthesis

Complete alteration of genetic code

No impact on DNA methylation

Inherited changes in DNA methylation (correct)

What is epigenetic inheritance?

The passing on of genetic material through DNA replication

The inheritance of physical traits acquired during an organism's lifetime

The process of increasing, reducing, or disabling the activity of particular genes (correct)

The random change in gene expression without any external influence

What are the two main categories of traits that contribute to plant defense in Arabidopsis thaliana?

Life-history traits and Morphology Signup and view all the answers

Which strategy involves plants being resistant to herbivores by producing substances that are poisonous or difficult to digest?

Antibiosis (poisoning) Signup and view all the answers

What is the evolutionary purpose of many seeding species having long intervals between flowering and dying?

To ensure that some seeds survive through predator satiation Signup and view all the answers

What is a characteristic of biochemical defenses used by plants against herbivores?

They are poisonous or difficult to digest Signup and view all the answers

What is the main advantage of toxins as a defense strategy for plants?

They are effective at low concentrations, making them cost-effective Signup and view all the answers

What is the difference between tolerance and resistance as defense strategies for plants?

Tolerance traits allow a plant to maintain high fitness despite damage by herbivores, while resistance traits reduce the damage done by herbivores Signup and view all the answers

Why is induced resistance not universal in plants?

Plants have a limited supply of defensive compounds that need to be concentrated in specific regions Signup and view all the answers

What kind of communication do plants engage in using volatile organic compounds (VOCs)?

Communication within the same plant, between plants of the same species, and between different species Signup and view all the answers