Microscope Slide 1. Examine whole-mount slides of fern prothallium-archegonia an
ID: 195719 • Letter: M
Question
Microscope Slide 1. Examine whole-mount slides of fern prothallium-archegonia and fern prothallium-antheridia 2. If you focus up and down very carefully on an archegonium, you may be able to see an egg inside. What (Fig. 14.15). is being produced inside an antheridium? the archegonium in a film of water, what results? This structure develops into what generation? When sperm produced in an antheridium swim to Conclusions: Ferns . How are ferns dispersed from one area to another? Is either generation in the fern dependent for any length of time on the other generation? Explain.Explanation / Answer
2.In the antheredium, antherozoids or sperm is produced.
When sperm swim to the archegonium, in a film of water, fertilization occurs.
Fertilization results in zygote, which grows into an embryo. The embryo grows into sporophyte generation.
Ferns produce spores, the main mode of dispersal is wind. They can also disperse through water, gravity, and animals.
The sporophyte initially depends on the gametophyte for food and nutrition. However, it dovelops rhizomes later, and becomes photosynthetic. The sporophyte is the dominant generation and is long-lived. The gametophyte is short lived.