Life Cycle of a Moss (Bryophyte) 1pt ea The dominant generation is the (a.) geno

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Life Cycle of a Moss (Bryophyte) 1pt ea The dominant generation is the (a.) genoyth Female gametophytes produce eggs in the (b.)Male gametophytes produce sperm in the (c.aO Sperm (d)ithrough the damp environment to fertilize the egg. The zygote remains in the parental tissue and grows into the (e.)_stevehy which is still attached to the female gametophyte. Spores are formed by the process of (f.) n aos ) in the g sWhen shed, spores develop into the (h.) antioythrough the process Life Cycle of a Fern (Monilophyte) 1 pt ea The dominant generation is the (a.) SCnOr Sporangia release the spores, which are (b.) baala of spore that develops into a (c) gcto phytk, a bisexual photosynthetic gametophyte. The male (d.) and female (e) their purpose is to produce the sperm and egg. These two gamete- producing structures develop at different times in order to promote (f) (g). archegonium when the sperm and egg unite, producing a (h.) zygote. The zygote develops into a new (i) which is independent from its parent (the gametophyte). Once the sporophyte is mature, it contains spots called G.)on the underside of its leaves, which are simply clusters of (k.) Most fern species produce a single type are both found on the same gametophyte, and rs inside the What are the derived traits of each of the following groups? 2pts ea (Hint: so you should probably provide at least 2 for each) a. Land plants b. Vascular Plants c Gymnosperms and Angiosperms ervarmw.nr (A.-~ r Crnt, c-..», Kat »-J.

Explanation / Answer

LIFE CYCLE OF MOSS

The dominant generation is GAMETOPHYTIC. Female gametophytes produce eggs in the ARCHEGONIUM. Male gametophyte produce sperm in ANTHERIDIUM. Sperm SWIM through the damp environment to fertilize the egg. The zygote remains in the parental tissue and grown into SPOROPHYTE which is still attached to the female gametophyte. Spores areformed by the process of MEIOSIS in the CAPSULE. When shed the spores develop into the HAPLOID GAMETOPHYTE through the process of MITOSIS.

DERIVED TRAITS OF LAND PLANTS- alternation of generation, multicellular gametangia, walled spores, multicellular gametangia and apical meristem

DERIVED TRAITS OF VASCULAR PLANTS- reduced gametophytes with heterospory, presence of ovules, pollen and seeds.

DERIVED TRAITS OF GYMNOSPERMS AND ANGIOSPERMS-a) presence of seed, ovules, pollen thick cuticle with modified leaves, cones,b)presence of flowers, fruits, double fertilization and the rapid maturation.

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