Life Cycles:

Life Cycles of Four Plant Phylum

In Phylum Pinophyta, the dominant generation is __________.

sporophyte

Sporophytes in Phylum Pinophyta produce __________ via meiosis.

microspores

The male gametophyte in Pinophyta is called __________.

pollen grain

The ovule cones in Pinophyta develop __________ via meiosis.

ovules

Pollen fertilizes the egg contained in the ovule cone, forming a __________.

diploid zygote

In Phylum Pinophyta, there is __________ fertilization.

no double

Phylum Anthrophyta are __________-seed vascular plants.

covered

In Anthrophyta, the fertilization process leads to the production of an __________ which makes fruit.

ovary

The second sperm in Anthrophyta forms __________ which is the nutritive tissue in the seed.

endosperm

The process of seed dispersal in both Pinophyta and Anthrophyta leads to the formation of growing __________.

sporophytes

What is Phylum Pinophyta?

Gymnosperms with a dominant diploid sporophyte generation. Pollen grains (male gametophytes) are produced from microspores through meiosis.

What is a sporophyte?

The diploid (2n) generation in plants that produces spores through meiosis.

What are microspores?

Haploid spores (n) formed by the sporophyte via meiosis, which develop into pollen grains (male gametophytes) through mitosis.

What are ovule cones?

Structures that develop ovules (female gametes) in Pinophyta through meiosis, containing megasporangia.

What is double fertilization?

A process in Anthrophyta where one sperm fertilizes an egg and the other fertilizes two polar bodies, forming endosperm.

What is endosperm?

Triploid (3n) tissue formed during double fertilization in Anthrophyta, which serves as nutritive tissue for the seed.

What is Phylum Anthrophyta?

Covered-seed vascular plants with a dominant diploid sporophyte generation.

What is Phylum Bryophyta?

Non-vascular plants where the mature sporophyte depends on the female gametophyte and reproduces via spores.

What is Phylum Pteridophyta?

Vascular plants that reproduce via spores and have a sporophyte that develops from a fertilized gametophyte.

What is a gametophyte?

The haploid (n) generation in plants that develops from spores and produces gametes (sperms and eggs).

What are antheridia?

Male reproductive structure in gametophytes that produces sperm.

What are archegonia?

Female reproductive structure in gametophytes that contains the egg.

What is amenochory?

Seed dispersal method carried out by