Chapter 30: Biology: Fundamentals of Life Sciences I
Terms
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- Angiosperms
- Flowering plants
- Gymnosperms
- Pines and Cycads
- Ovule
- Megasporangium
- Anther
- Microsporangium
- Stigma
- Stickey Material; The terminal surface that recieves pollen grains
- Style
- Stigma position; The apical stalk of the pistil
- Ovary
- Ovule development; The swollen base of the pistil containing one or more ovules
- Petal
- Attracting pollinators
- Sepal
- Protects immature flower bed; outer leaves
- Pistil
- A structure composed of 1 carpel and 2 or more fused carpels
- Petals
- Inner leaves
- Corolla
- Collectively the inner leaves
- Calyx
- Collectively the outer leaves
- Cycadophyta
- Palm like plants of the Tropics and Subtropics, growing as tall as 20 meters high; probably closest to the earliest seed plants
- Ginkophyta
- Were common during the Mesozoic era; represented today by a single genus and species, the maidenhair tree (both male and female)
- Gnetophyta
- Consists of 3 very different genera that share certain characteristics with the angiosperms
- Pinophyta
- The conifers; By far the most abundant of the gymnosperms; cone-bearing plants such as pines and redwoods
- Receptacle
- Central Stalk
- Inflorescence
- When flowers are grouped together
- Pollen Grains
- A male gametophyte
- Double Fertilization
- Was long considered the single most reliable distinguishing characteristic of the angiosperms; one sperm combines with the egg to produce a diploid zygote, the 1st cell of the sporophyte generation
- Endosperm
- A triploid tissue; nourishes the embryonic sporophyte during its early development