AP BIOLOGY

PLANTS

BRYOPHYTES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When the ____ dries out, the ____ are ____
A
capsule, spores, released
B
released, spores, capsule
C
spores, released, capsule
Explanation: 

Detailed explanation-1: -In most wind‐dispersed species, diaspore release and transportation typically take place under dry conditions promoting the segregation of the diaspores and maximizing dispersal chances (Soons & Bullock, 2008).

Detailed explanation-2: -As the mature capsule begins to dry out the capsule shrinks in length. The outer capsule cells shrink less than the inner ones and this causes the capsule to bow out so that slit-like gaps form along the dehiscence lines and the spores can fall out through those gaps.

Detailed explanation-3: -The spore capsule, often with a supporting stalk (called a seta), is the sporophyte and this grows from the gametophyte stage.

Detailed explanation-4: -Each sporophyte plant is composed of a capsule, which is the center of spore formation; a stalk; and a foot that attaches the sporophyte body to the tip of the gametophyte. Eventually, the diploid spores are released and, upon successful germination, grow into another moss plant.

There is 1 question to complete.