4.2 Reproduction in Flowering Plants
Sepal: protects developing flower/supports when open (green/thicker than petals)
Petals: colorful, vary in dimensions, attract insects/birds, release chemicals animals can smell (humans too)
Stamen: male, anther (pollen production), filament (supports anther, slim stalk)
Pistil: female, ovary (large part underneath petal starting point/contains ovules), top part of pistil (stigma) gets pollen on it – sticky substance.
Stigma/ovary connected = long stalk (style)
Pollination: pollen moved between anther/pistil. Moved by wind, gravity, bees, birds, etc.
Fertilization (male/female cells), cells go through style into ovary and creates beginning of plant
Perfect flower: has stamen and pistil
Imperfect flower: only female or male, not both
Spikes cling to bee (pollen)
I just had a great idea: What if I posted my notes (of useful information) in Jiskha, so you could copy my notes and not fail OR cheat? I joined late so you'll only get some notes. Sorry.
18 answers
4.3 Reproduction in Non-Flowering Plants
Male cell must be able to swim to female one (damp places).
Sporophyte: most often seen stage/generation of plant that produces spores.
Spore: single cell produces plant without fusion with another cell.
Fern reproduce: underside of leaves get spores – land in damp place – grow into small gametophyte (makes gametes)
Gymnosperms (CONIFERS): pine, fir, cedar. Usually at sporophyte stage. Don’t need water, use wind and cones. Small cones (male) carry pollen. Large cones (female) carry female gametophyte.
Wind carries pollen male/female – gametes meet – become seeds – tree/sporophyte.
Male cell must be able to swim to female one (damp places).
Sporophyte: most often seen stage/generation of plant that produces spores.
Spore: single cell produces plant without fusion with another cell.
Fern reproduce: underside of leaves get spores – land in damp place – grow into small gametophyte (makes gametes)
Gymnosperms (CONIFERS): pine, fir, cedar. Usually at sporophyte stage. Don’t need water, use wind and cones. Small cones (male) carry pollen. Large cones (female) carry female gametophyte.
Wind carries pollen male/female – gametes meet – become seeds – tree/sporophyte.
i think tat is a great idea i also feel like some of the student like us who help should get paid for tis like we also have work of our own but we take time out of our day to help other jiskha could at least say thank because their tutors are no help
It won't show images I have in my notes :/
Sorry ya'll.
Sorry ya'll.
They're hiring, so I'm guessing everyone left them lol. I only get 5 dollars a week for chores (which is nice), but I am in no way gonna get enough money for a car in a short period. So getting paid on Jiskha would be verrryy nice.
4.4 Successful Plant Reproduction
Changes in flowers/pollinators over long time: coevolution
Pollination must occur for reproduction to be successful
And if anyone has something to add to my notes, just say the module/lesson (4.4) and I'll re-post it.
Changes in flowers/pollinators over long time: coevolution
Pollination must occur for reproduction to be successful
And if anyone has something to add to my notes, just say the module/lesson (4.4) and I'll re-post it.
4.5 Successful Plant Reproduction
Courtship behaviors: male peacock spreads feathers, etc.
Successful courtship = reproduction
Territorial behavior: more access to resources if won (offspring > chance surviving)/mark territory (prevents intruders/fights), displays dominance
Mammals = more care needed
Courtship behavior: attracts opposite gender (as mate)
Animals (pollinators) help reproduce plants by getting reward (nectar, etc.)
Climate change/human activity = less successful reproduction
Stimulus: change in conditions (hibernate/migrate when cold/winter), response is reacton to stimulus
Grouping (group behavior): animals join other animals - group (wolves group - hunt), more complex: bee/ant roles, not all one thing
Courtship behaviors: male peacock spreads feathers, etc.
Successful courtship = reproduction
Territorial behavior: more access to resources if won (offspring > chance surviving)/mark territory (prevents intruders/fights), displays dominance
Mammals = more care needed
Courtship behavior: attracts opposite gender (as mate)
Animals (pollinators) help reproduce plants by getting reward (nectar, etc.)
Climate change/human activity = less successful reproduction
Stimulus: change in conditions (hibernate/migrate when cold/winter), response is reacton to stimulus
Grouping (group behavior): animals join other animals - group (wolves group - hunt), more complex: bee/ant roles, not all one thing
4.6 Analyzing Factors
Reproductive success: number animal can produce of offspring
Zoos breed, release, research endangered, conserve species
Surveying 3,000 children 1/3 got positive learning experience, 15% incorrect information
228 zoos: 30 species worked with for recovery (30 cases can’t be reintroduced).
Population size (all wolf packs in area), pack size (number of wolves in pack).
Patterns of change in graph: trends
Reproductive success: number animal can produce of offspring
Zoos breed, release, research endangered, conserve species
Surveying 3,000 children 1/3 got positive learning experience, 15% incorrect information
228 zoos: 30 species worked with for recovery (30 cases can’t be reintroduced).
Population size (all wolf packs in area), pack size (number of wolves in pack).
Patterns of change in graph: trends
5.1 Reproductive Strategies Introduction (11/10/2021)
Angiosperms: flowering plants
Sexual reproduction: gametes
Asexual reproduction: self reproduction, no gametes
Angiosperms: flowering plants
Sexual reproduction: gametes
Asexual reproduction: self reproduction, no gametes
Will do the rest once I finish my notes. And attend this math LL.
i get paid 5 dollars to 10 if my mom is feeling generous i should get paid more because i sweep mope and i mow the yard and rake and i wash the care that is worth like at least 25$ a week
Luckyy. I don't have to mow the lawn thank goodness (I'm too short, not strong enough either lol). Or wash the car, bc we hardly wash them. They don't get too dirty. And the yard ... Depends on if we still have room in the bin. Dog poop is always fun when it rains, though. Anyyywho.
lucky you also i forgot i do laundry tooo
I do laundry as well. Sometimes folding, sometimes everything. . . It depends.
5.2 Asexual Reproduction Strategies
Binary fission: splits one organism into two. DNA divides - cell itself divides in half.
Budding: Offspring organisms form on surface of parent (fungi, animals). Parent yeast cell – Nucleus – Bud - Nucleus divides by mitosis - Bud separates from original cell - Daughter cell.
Fragmentation: Pieces of parent develop into clones. (Cuttings from plants and putting them in soil or water to grow. Flat worms, sea stars.
Vegetative reproduction (asexual): Modified stem/root of the parent organism grows offspring that stay attached. (Bulbs of flowers, like daffodils and runners, or stolons, of strawberry plants are types of vegetative reproduction.)
Think that's it for this lesson.
Binary fission: splits one organism into two. DNA divides - cell itself divides in half.
Budding: Offspring organisms form on surface of parent (fungi, animals). Parent yeast cell – Nucleus – Bud - Nucleus divides by mitosis - Bud separates from original cell - Daughter cell.
Fragmentation: Pieces of parent develop into clones. (Cuttings from plants and putting them in soil or water to grow. Flat worms, sea stars.
Vegetative reproduction (asexual): Modified stem/root of the parent organism grows offspring that stay attached. (Bulbs of flowers, like daffodils and runners, or stolons, of strawberry plants are types of vegetative reproduction.)
Think that's it for this lesson.
Le gasp: I'll do this for SS as well. I need help on those notes myself, though lol.
Annnddd I misused a comma and the word "though". I am attacked by self-loathing with my diminished use of correct grammatical usage.
Do no beat yourself up over one mistake, some people here can't even spell.
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