Multiple Choice
Which of the following lists best characterizes the order Primates?
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1. Introduction to Biology
Introduction to Taxonomy
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Why are bryophytes considered incompletely liberated from their ancestral aquatic habitat?
A
They possess vascular tissues for efficient water transport.
B
They require water for the movement of sperm during reproduction.
C
They have thick cuticles that prevent water loss.
D
They produce seeds that can survive dry conditions.
Verified step by step guidance1
Understand the characteristics of bryophytes: Bryophytes are non-vascular plants, meaning they lack specialized tissues like xylem and phloem for efficient water and nutrient transport. This limits their ability to thrive in dry environments.
Recognize the reproductive dependency on water: Bryophytes rely on water for the movement of sperm to the egg during sexual reproduction. This is a key feature that ties them to their ancestral aquatic habitat.
Compare bryophytes to other plant groups: Unlike seed-producing plants, bryophytes do not produce seeds that can survive dry conditions. Instead, they reproduce via spores, which are less adapted to dry environments.
Examine structural adaptations: Bryophytes have thin cuticles or lack them entirely, which makes them prone to water loss. This further emphasizes their dependence on moist environments.
Conclude why bryophytes are incompletely liberated: Due to their reliance on water for reproduction and lack of adaptations for dry conditions, bryophytes are considered incompletely liberated from their ancestral aquatic habitat.
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