Question: Berries are formed by which number of ovaries?
About the article "Fruit", section "Berries".

Candidate passages:
Some plants commonly called "vegetables," such as the cucumbers, tomatoes, and squash are actually botanically fruits.
Fruits come in three main anatomical categories:  Simple fruits are formed from a single ovary and may contain one to many seeds.
They can be either fleshy or dry.
Examples of simple fleshy fruits are berries, drupes, and pomes.
Examples of dry fruits include nuts.
Aggregate fruits are formed from a single compound flower and contain many ovaries.
Examples include raspberries and blackberries.
Multiple fruits are formed from the fused ovaries of multiple flowers.
An example for a multiple fruit is pineapple.  
Reproductive system.
Female insects are able make eggs, receive and store sperm, manipulate sperm from different males, and lay eggs.
Their reproductive systems are made up of a pair of ovaries, accessory glands, one or more spermathecae, and ducts connecting these parts.
The ovaries make eggs and accessory glands produce the substances to help package and lay the eggs.
Spermathecae store sperm for varying periods of time and, along with portions of the oviducts, can control sperm use.
The ducts and spermathecae are lined with a cuticle.
The ovaries are made up of a number of egg tubes, called ovarioles, which vary in size and number by species.
The number of eggs that the insect is able to make vary by the number of ovarioles with the rate that eggs can be develop being also influenced by ovariole design.
In meroistic ovaries, the eggs-to-be divide repeatedly and most of the daughter cells become helper cells for a single oocyte in the cluster.
In panoistic ovaries, each egg-to-be produced by stem germ cells develops into an oocyte; there are no helper cells from the germ line.
Production of eggs by panoistic ovaries tends to be slower than that by meroistic ovaries.
Accessory glands or glandular parts of the oviducts produce a variety of substances for sperm maintenance, transport, and fertilization, as well as for protection of eggs.
They can produce glue and protective substances for coating eggs or tough coverings for a batch of eggs called oothecae.
Spermathecae are tubes or sacs in which sperm can be stored between the time of mating and the time an egg is fertilized.
Paternity testing of insects has revealed that some, and probably many, female insects use the spermatheca and various ducts to control or bias sperm used in favor of some males over others. 
Female insects are able make eggs, receive and store sperm, manipulate sperm from different males, and lay eggs.
Their reproductive systems are made up of a pair of ovaries, accessory glands, one or more spermathecae, and ducts connecting these parts.
The ovaries make eggs and accessory glands produce the substances to help package and lay the eggs.
Spermathecae store sperm for varying periods of time and, along with portions of the oviducts, can control sperm use.
The ducts and spermathecae are lined with a cuticle.
The ovaries are made up of a number of egg tubes, called ovarioles, which vary in size and number by species.
The number of eggs that the insect is able to make vary by the number of ovarioles with the rate that eggs can be develop being also influenced by ovariole design.
In meroistic ovaries, the eggs-to-be divide repeatedly and most of the daughter cells become helper cells for a single oocyte in the cluster.
In panoistic ovaries, each egg-to-be produced by stem germ cells develops into an oocyte; there are no helper cells from the germ line.
Production of eggs by panoistic ovaries tends to be slower than that by meroistic ovaries.
Accessory glands or glandular parts of the oviducts produce a variety of substances for sperm maintenance, transport, and fertilization, as well as for protection of eggs.
They can produce glue and protective substances for coating eggs or tough coverings for a batch of eggs called oothecae.
Spermathecae are tubes or sacs in which sperm can be stored between the time of mating and the time an egg is fertilized.
Paternity testing of insects has revealed that some, and probably many, female insects use the spermatheca and various ducts to control or bias sperm used in favor of some males over others. 
Botanically, the fruit produced is a berry.
The berries develop later in the season; berry development time varies from species to species from a few weeks to a year, although most philodendrons take a few months.
The spathe will enlarge to hold the maturing berries.
Once the fruit are mature, the spathe will begin to open again, but this time it will break off at the base and fall to the forest floor.
Additionally, the berries are edible, although they contain calcium oxalate crystals, and have a taste akin to bananas.
The color of the berries can vary depending on the species, but most produce a white berry with slight tones of green.
Some produce orange berries and others yellow berries, though.
Still others will produce berries that start off white, but then change to another color with time.
Philodendrons that produce orange berries tend to be members of the section "Calostigma".
Contained within the berries are the seeds which are extremely small compared to other members of the Araceae family.
The berries often give off odors to attract animals to eat and disperse them.
For example, "Philodendron alliodorum" berries are known to emit an odor similar to that of garlic.
The animals that distribute the seeds depends on the species, but some possible dispersers include bats and monkeys.
Insects also may be responsible for dispersing seeds, as beetles and wasps have been seen feeding on philodendron berries.
Chalcid wasps also seek out philodendrons, and are known to lay their eggs in the ovaries of many philodendron species, resulting in galled inflorescences. 
Ovaries of some kind are found in the female reproductive system of many animals that employ sexual reproduction, including invertebrates.
However, they develop in a very different way in most invertebrates than they do in vertebrates, and are not truly homologous.
Many of the features found in human ovaries are common to all vertebrates, including the presence of follicular cells, tunica albuginea, and so on.
However, many species produce a far greater number of eggs during their lifetime than do humans, so that, in fish and amphibians, there may be hundreds, or even millions of fertile eggs present in the ovary at any given time.
In these species, fresh eggs may be developing from the germinal epithelium throughout life.
Corpora lutea are found only in mammals, and in some elasmobranch fish; in other species, the remnants of the follicle are quickly resorbed by the ovary.
In birds, reptiles, and monotremes, the egg is relatively large, filling the follicle, and distorting the shape of the ovary at maturity.
Amphibians and reptiles have no ovarian medulla; the central part of the ovary is a hollow, lymph-filled space.
The ovary of teleosts is also often hollow, but in this case, the eggs are shed into the cavity, which opens into the oviduct.
Although most normal female vertebrates have two ovaries, this is not the case in all species.
In most birds and in platypuses, the right ovary never matures, so that only the left is functional.
(Exceptions include the Kiwi and some, but not all raptors, in which both ovaries persist.)
In some elasmobranchs, only the right ovary develops fully.
In the primitive jawless fish, and some teleosts, there is only one ovary, formed by the fusion of the paired organs in the embryo.