It Is Possible to Take a Mature Fern Frond and Rub

question 2

Multiple Choice

It is possible to take a mature fern frond and rub the circular brown growths on the lower surface over a wet plug of peat moss.Soon small heart-shaped green structures grow on the nutritious peat moss plugs.What has happened?

• A)Eggs and sperm released from the underside of the fern frond united on the peat plug and grew into sporophyte prothalli.
• B)Spores released from the underside of the frond germinated on the peat plug and formed the gametophyte called a prothallus.
• C)Spores released from the underside of the fern frond germinated on the peat plug and formed sporophyte rhizomes that give rise to many indusium.
• D)Gametes released from the underside of the fern frond germinated on the peat plug and formed a sporophyte structure called an archegonium.
• E)Zygotes released from the bottom of the fern frond germinated on the peat plug and grew into gametophyte fiddleheads.

---

Definitions:

Light Sleeper

A person who wakes up easily or has difficulty staying asleep through minor disturbances.

Break of Dawn

The time early in the morning when light first appears in the sky, marking the beginning of the day.

Eliminate Surplus Words

The practice of removing unnecessary words in writing to make it clearer and more concise.

Economically

Pertaining to the efficient and prudent use of resources, or relating to economics as a field of study.