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Fertilization
* Most fertilization has effects
  - functions
* Most fertilization increases deciduous growth
  - shrub growth
  - leads to development
  - makes reproduction
  - occurs at time
* Most fertilization occurs in aqueous environments
  - cavities
  - control environments
  - gametophytes
  - mantle cavities
  - pistils
  - springs
  - summer
  - stimulates germination
  - triggers pregnancy
* Some fertilization affects distribution
  - fitnesses
  - follows embryo development
  - involves fusion
  - occurs at nights
* Some fertilization occurs in angiosperms
  - carapaces
  - foxes
  - laboratories
  - mammals
  - mucous tubes
  - red foxes
  - produces sporophytes
  - stimulates growth
  - triggers egg activations
* accelerates the rate of stand development.
* activates the egg to complete meiosis and begin development.
* acts as a stimulus.
* affects the tolerance of plants to dry weather.
* allows the flower to develop seeds.
* begins in the fallopian tube
  - when a man's sperm cell enters a female's egg, creating a zygote
* biological process that has important social, economic and medical implications.
* can help produce large flowers
  - provide nutrients necessary for plant growth and improve overall health
  - thus take place several weeks after mating with the male
* causes cortical rotation and thereby creates bilateral symmetry.
* completes the sexual process, and as a result produces a seed from a fertilized ovule.
* creates a diploid embryo, which grows into the sporophyte, and the cycle then repeats.
* defects in sperm from mice lacking fertilin beta.
* depends on availability
  - water
* determines the size and quality of the flowers and foliage.
* effects on physically protected light fraction organic matter
  - physically-protected light fraction organic matter
* enhances both weed biomass and seed production.
* forms a zygote which enlarges by water uptake to form an auxospore
  - the diploid zygote and triggers the onset of embryonic development
* further establishes the polar axes within the egg.
* helps trees withstand repeated defoliation.
  - genetic variation
  - variation because two haploids become a diploid
* involves a number of changes in the sperm and ova
  - several steps
* is almost always external
  - also an effective and economical way to prevent the growth of many aqua-tic weeds
* is an active process which requires an interaction between the sperm and the eggs
  - important biological process resulting in the first embryonic stage, the zygote
  - avoided by preventing contact between spermatozoa and the ovum
  - by means of spermatozoids which swim in water
  - complete when the sperm and egg nuclei fuse
  - creations
  - dependent on water - sperm are splashed or swim to the archegonia
  - enrichment
* is important on both upland and flatwoods pine plantations
  - to keep plants growing vigorously
  - in most cases cross-fertilization
  - most likely to occur from intercourse during the six days that end in ovulation
  - much more difficult to accomplish when sperm motility is reduced
* is one of the things that makes cotton more intensive and challenging
  - step of the reproduction process both in animals and plants
  - only the beginning of animal reproduction
  - possible even in cases with scant sperm or compromised sperm function
  - sex at the genetic level, and seed are seed
  - the penetration of the egg by a sperm
  - unnecessary for many of the spring flowering shrubs
* is usually external, but in brooding species occurs in the mantle pallial cavity
  - internal, another adaptation for terrestrial life
* leads to a gestation period of about fifty to seventy days
* means adding nutrient to soil.
* mediates within-tree phytochemical induction by the gypsy moth in oaks.
* mitogenic stimulus that triggers the zygote to re-enter the cell cycle.
* occurs ad the fertilized macrogamete becomes an oocyst.
* occurs after the deposition of the cocoon
  - plant is pollinated
* occurs and a zygote is produced within the host cells
* occurs and the fertilized eggs are harvested either surgically or non-surgically
  - formation of a zygote, sporophyte and then finally a fronds develop
  - then eggs travel down the oviduct
  - as the eggs and milt intermingle
* occurs by chance
  - combining egg of female and sperm of the male
  - zygote dies
  - externally in most species
  - externally, with development following in the open water
  - high up in the oviduct and a shell gland puts on the shell afterward
  - if the sperms meet an egg
* occurs in a tube
  - an aqueous environment
  - fallopian tubes
  - mesohyl followed by development of flagellated larva
  - much the same way in all flowering plants
  - spring summer
* occurs in the a. vagina
  - archegoniophore
  - body cavity or just after the ovum enters the oviduct
* occurs in the fallopian tube or oviduct
  - tubes rather than in the laboratory
  - female's reproductive organs
* occurs in the laboratory outside the woman's body
  - when the sperm are mixed with the eggs
  - laboratory, hence the term test-tube baby
  - mesenchyme and the zygotes develop into ciliated larvae
  - outer portion of the tube when the sperm penetrates the egg
* occurs in the oviduct leading to the uterus
  - or ovary itself
  - proximal oviduct ampulla
  - upper half of the oviduct
  - uterine tubes
* occurs in the water and the eggs become sticky
  - column
* occurs inside the female coral, and a small planula develops inside it
  - umbrella and a microscopic sporophyte forms within the tissue
* occurs internally and results in the production of jelly-like eggs
  - in the female
  - internally, and is followed by a long period of gestation
  - naturally in the fallopian tubes
  - only if a sperm meets an egg from the same species
  - outside of the body for organisms such as fish
  - shortly after pollination and begins the process of seed development
  - through pollen-tubes with two male nuclei
* occurs when a father's sperm and mother's egg unite at the time of conception
  - female gamete and a male gamete join to create a zygote
  - male and female gamete join to form a zygote
* occurs when a sperm and egg interact
  - fuses with an egg to form a zygote
  - swims to an archegonium
  - unites with the egg
* occurs when an egg and a sperm cell fuse to form a diploid zygote
  - is joined with a sperm and an embryo results
  - flagellated sperm swim to the egg
  - one of the sperm nuclei unites with the egg nucleus
  - sperm and egg nuclei unite
  - the egg and sperm fuse and join
* occurs when the male and female cells unite to produce a seed
  - gametes unite with the female egg in the ovule
  - sex cell joins the female sex cell
* occurs when the nuclei of an egg and a sperm cell fuse to form a zygote
  - the sperm and egg meet and join together or fuse
  - nucleus of a sperm cell fuses with the nucleus of an egg cell
* occurs when the sperm nuclei fuses with the female egg nucleus
  - successfully enters the ovum's membrane
* occurs within the oviduct
  - protection of the archegonium
* often takes place without the formation of an ovum at one of the two oocyte stages.
* process which takes place gradually and in secret.
* produces a diploid zygote which develops into the next sporophyte generation
  - zygote, and meiosis produces haploid spores
  - an embryo that stimulates another hormone to maintain the uterus lining
* promotes selective association of the abl kinase with the egg cytoskeleton.
* provides nourishment.
* refers to the initiation of a new human being
  - union of the sperm and the egg to form a zygote
* relies on spermatozoa for most sexually reproductive animals.
* requires at least a thin film of water so sperm can swim to egg
  - moisture
  - water to be active
* restores chromosome number to the normal state
  - diploid chromosome number and paired condition for alleles in zygote
* results in a diploid zygote
  - an embryo which develops inside protective layers of tissue
* results in constant growth
  - population growth
* results in the development of oocysts that are excreted in the stool
  - oocysts, which are excreted in the stool
* results in the formation of oocysts, which are then passed out with the feces
  - zygote which begins to develop into an embryo
  - production of a zygote
  - re-establishment of the diploid number of chromosomes
* returns the haploid gametophyte generation to the diploid sporophyte generation.
* slow process in pines.
* still takes place in the fallopian tube, like normal.
* stimulates growth and increases water needs
  - of phytoplankton which is, in turn, consumed by filter-feeding carp
  - seed germination
* stimulates the growth of plankton algae
  - secretion of wall material which occurs in the periplasm
* takes place after a flagellated sperm swims to the archegonium
  - at that time, but embryos remain in a dormant state for several weeks
  - by osmosis
  - during the morning, and the flowers usually wither and die about noon
* takes place in che uterus
  - oviduct around midpoint of dark cycle
* takes place in the fallopian tube close to the ovary
  - mid portion of the tube, called the ampulla
  - open water and cell division begins
  - upper oviduct before albumin and shell are added
  - water column
* takes place inside the anemone instead of in the water
  - females and results in planula larvae
  - sporophyte which is retaining the gametophyte
* takes place internally , although the mode of sperm transmission varies widely
  - for boa constrictors
  - once mature flowers have developed on the tomato plant
* takes place outside the body in a small glass dish
  - prior to elongation of the stalk, and a sporophyte is formed
  - when a choanocyte fuses with the egg
* takes place when the male and female cells unite in the ovule
  - sperm and egg nucleus unite
* takes place within the clitellum, a thicker glandular mid section band of the body
  - placein the water
* therefore occurs outside the body.
* triggers completion of meiosis in most vertebrates
  - the completion of meiosis and the female pronucleus is formed
  - their activation and the onset of development