Seed Dispersal Mechanisms Quiz

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Questions and Answers

What is the primary dispersal mechanism in woody plants?

Endozoochory (correct)

Mechanical dispersal

Wind dispersal

Water dispersal

Which of the following is NOT a type of autochory?

Water dispersal

Wind dispersal (correct)

Gravity dispersal

Ballistic dispersal

What is the mechanism called when seeds are dispersed by ants?

Ballistic dispersal

Epizoochory

Anemochory

Endozoochory (correct)

Which dispersal mechanism involves scatter-hoarding by small mammals?

Endozoochory Signup and view all the answers

What is the role of angiosperms in ecosystems?

Harnessing animal life for pollination and seed dispersal Signup and view all the answers

Which of the following animals is NOT mentioned as a potential seed disperser?

Fish Signup and view all the answers

What is seed dispersal?

The mechanism by which plant seeds are transported away from the parent plant Signup and view all the answers

Why do seedlings take root further away from their parent plant?

To reduce density-dependent seedling mortality and resource competition Signup and view all the answers

What is the ultimate fate of seeds dependent on?

Effectiveness of seed dispersers and luck Signup and view all the answers

What is one benefit of seed dispersal for plant species?

Avoiding competition for resources and reducing seedling mortality Signup and view all the answers

Which term describes the process of seeds being carried to new sites for germination?

Seed dispersal Signup and view all the answers

How does seed dispersal contribute to plant reproductive success?

By improving chances of recruitment in suitable habitats Signup and view all the answers

What are the two main types of vascular tissues found in plants?

Xylem and phloem Signup and view all the answers

Which part of a plant typically contains apical meristems at the tips of shoots and roots?

Stem Signup and view all the answers

What characterizes the reproductive structures of angiosperms?

Flowers producing seeds enclosed in fruits Signup and view all the answers

Which plant adaptation is crucial for water transport and conservation to prevent desiccation?

Development of waxy cuticle Signup and view all the answers

How do monocots and eudicots differ from each other?

Monocots have seeds with only one cotyledon, while eudicots have seeds with two cotyledons. Signup and view all the answers

What is the primary function of seed dispersal mechanisms in plants?

To facilitate colonization of new habitats Signup and view all the answers

Study Notes

Seed Dispersal Mechanisms

Primary Dispersal Mechanism in Woody Plants: Wind dispersal is the primary mechanism for seed dispersal in woody plants.
Autochory: The term "autochory" describes dispersal mechanisms where plants themselves disperse their seeds, which can include ballistic mechanisms, but not wind dispersal.
Myrmecochory: The dispersal of seeds by ants is called myrmecochory.
Scatter-hoarding: Small mammals engage in scatter-hoarding, which is a dispersal mechanism where they bury seeds for later consumption.
Role of Angiosperms in Ecosystems: Angiosperms play a crucial role in ecosystems as primary producers, providing food and habitat for numerous organisms.
Seed Dispersers: While birds, bats, and mammals are common seed dispersers, insects are not mentioned as primary potential seed dispersers in the text.
Seed Dispersal: Seed dispersal is the movement of seeds away from the parent plant, which occurs through a variety of mechanisms.
Seedling Location: Seedlings take root further away from their parent plant to reduce competition for resources and increase their chances of survival.
Seed Fate: The ultimate fate of seeds is dependent on various factors, including environmental conditions, dispersal success, and the availability of resources.
Benefits of Seed Dispersal: Seed dispersal offers various benefits, including reducing the risk of disease transmission and increasing the genetic diversity of the population.
Seed Dispersal and Plant Species: The term "seed dispersal" refers to the process of seeds being carried to new sites for germination.
Seed Dispersal and Reproductive Success: Seed dispersal plays a crucial role in plant reproductive success by increasing the likelihood that seeds will find suitable conditions for germination and establishment.

Plant Anatomy and Reproduction

Vascular Tissues in Plants: The two main types of vascular tissues found in plants are xylem and phloem, which transport water and nutrients throughout the plant.
Apical Meristems: Apical meristems, located at the tips of shoots and roots, are responsible for plant growth and development.
Angiosperm Reproductive Structures: Angiosperm reproductive structures are characterized by flowers, which facilitate pollination and the production of seeds.
Adaptation for Water Conservation: A crucial adaptation for water transport and conservation in plants is the presence of a cuticle, which prevents water loss from the plant surface.
Differences Between Monocots and Eudicots: Monocots and eudicots differ primarily in their seed structure and the arrangement of their vascular tissues. Monocots have one cotyledon, while eudicots have two; monocots have scattered vascular bundles, while eudicots have vascular bundles arranged in a ring.

Seed Dispersal's Function

Primary Function of Seed Dispersal: Seed dispersal mechanisms in plants primarily facilitate the spread and establishment of plant populations.

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Description

Test your knowledge on seed dispersal mechanisms including autochory, abiotic dispersal such as by gravity or wind, biotic dispersal by animals, and the different methods like epizoochory and endozoochory. Explore the factors influencing seed dispersal in plants.