Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
35 Cards in this Set
- Front
- Back
|
The environment elicits a discontinuous "either/or" set of phenotypes (genetic background equivalent). Helps to cope with harsh environmental conditions.
|
Polyphenism
|
|
|
Based on the food nutrition an organism eats will alter its phenotype.
|
Nutritional polyphenism
|
|
|
If kairomones are released into the environment prey alter morphology.
|
Predator-induced polyphenism
|
|
|
Immediate response of an organism due to a change in the environment.
|
Phenotipic plasticity
|
|
|
Albility of an organism to change development due to environmental input.
|
Developmental plasticity
|
|
|
Chemical released by predators into the environment that alters the morphology of prey.
|
Kairomones
|
|
|
Mimic or disrupt the endocrine system (ie. teratogen).
|
Endocrine disruptor
|
|
|
Compounds that can mimic estrogens, can be natural or human made.
|
Phytoestroges
|
|
|
Larger larva express more of this.
|
JH (juvenile hormone)
|
|
|
Environment elicits continuous range of phenotypes for an equivalent genetic background.
|
Reaction norms
|
|
|
Life cycle that involves mitotic divisions, resulting in multicellular organisms in both diploid and haploid generations.
|
Haplodiplontic
|
|
|
Persist long after a plant reaches maturity.
|
Meristem
|
|
|
Eukaryotic, heterosporous organisms.
|
Angiosperms
|
|
|
Have both diploid and haploid multicellular stages in the life cycle.
|
Alternation of generations
|
|
|
Contain both male and female gametophytes.
|
Heterosporous
|
|
|
Signals to the pollen tube where to grow (to high concentrations).
|
GABA (gamma-aminobutyric acid)
|
|
|
Pollen tubes grow every which way, too much GABA.
|
POP 2
|
|
|
Fruit portion
|
Endosperm
|
|
|
Seed portion
|
Embryo
|
|
|
Protective seed coat
|
Integuments
|
|
|
Opening of ovule that the pollen tube finds in order to fertilize the ovule.
|
Micropyle
|
|
|
Female portion of the flower.
|
Carple
|
|
|
Male portion of the flower.
|
Anther
|
|
|
Inner wall of the pollen grain.
|
Intine layer
|
|
|
Outer wall of the pollen grain.
|
Exine layer
|
|
|
Female gametophyte.
|
Ovule
|
|
|
Consumes the generative cell and grows to find the ovule.
|
Tube cell
|
|
|
Consumed by the tube cell.
|
Generative cell
|
|
|
Spongy tissue in the anther, in a mature anther it degrades and releases pollen.
|
Tapetum
|
|
|
Haploid microspore that develops by meiosis into pollen tetrad.
|
Microspore mother cell
|
|
|
Derived from microspore mother cells by meiosis and later develop into tube and generative cells.
|
Pollen tetrad
|
|
|
Stalk attaching ovule to the ovary wall.
|
Finiculus
|
|
|
Ovule containing 7 cells.
|
Embryo sac
|
|
|
Grows down the style and through the micropyle to reach the embryo sac.
|
Pollen tube
|
|
|
After fertilization becomes 3n.
|
Central cell
|
