Asked by Brody Chester on Jul 28, 2024
Verified
The gametophyte of mosses has two stages. During the first stage, the gametophyte grows into a branching of filament cells known as a(n)
A) antheridium.
B) archegonium.
C) rhizoid.
D) protonema.
E) sori.
Protonema
The initial stage in the life cycle of mosses and some algae, characterized by a thread-like chain of cells.
Gametophyte
The haploid stage in the life cycle of plants and algae that produces gametes, or sex cells, through mitosis.
Filament Cells
Elongated cells often found in plants and algae that form long, thread-like structures involved in photosynthesis and structure.
- Recognize the stages and features of moss gametophytes.
Verified Answer
DD
death dealerAug 03, 2024
Final Answer :
D
Explanation :
The first stage of the moss gametophyte is the protonema, which is a mass of branching filaments that develops from a spore. The antheridium and archegonium are structures on the mature gametophyte that produce sperm and egg cells, respectively. Rhizoids are root-like structures that anchor the gametophyte to its substrate. Sori are structures found on ferns that produce and release spores.
Learning Objectives
- Recognize the stages and features of moss gametophytes.