Asked by Nitesh Dubal on Jul 25, 2024
Verified
One adaptation that was necessary for charophytes to move onto land was the protection of the embryo from desiccation. In mosses, the embryo, called a developing sporophyte, is
A) protected within the archegonium and nourished by the "foot" growing down into the gametophyte tissue.
B) protected by the antheridia and nourished by the rhizoids.
C) protected by the protonema and nourished by the "foot" growing down into the gametophyte.
D) protected within the antheridia and nourished by the "foot" growing down into the sporophyte tissue.
E) not protected since mosses are not vascular plants.
Archegonium
A female reproductive structure in plants and certain algae, where the egg cell is produced and fertilization occurs.
Charophytes
A group of green algae thought to be the closest relatives of land plants, sharing key traits for terrestrial adaptation.
Desiccation
The process of extreme drying out or dehydration, which can be detrimental to living organisms as it leads to loss of moisture and can disrupt cellular and systemic functions.
- Detail the adaptations that enable nonvascular plants to thrive in terrestrial environments.
- Identify the distinguishing characteristics of terrestrial plants as compared to their aquatic predecessors.
Verified Answer
GM
Ghulam MustafaJul 28, 2024
Final Answer :
A
Explanation :
In mosses, the embryo, or developing sporophyte, is protected within the archegonium and nourished by the "foot" growing down into the gametophyte tissue. This adaptation allows the developing sporophyte to be protected from desiccation, which is necessary for survival on land.
Learning Objectives
- Detail the adaptations that enable nonvascular plants to thrive in terrestrial environments.
- Identify the distinguishing characteristics of terrestrial plants as compared to their aquatic predecessors.