Opposed to this are computations that only occur once, and that do not involve learning. If this is accepted as part of the definition, then it includes the artificial intelligence of robots capable of "machine learning", but excludes those purely autonomic sense-reaction responses that can be observed in many plants. Plants are not limited to automated sensory-motor responses, however, they are capable of discriminating positive and negative experiences and of 'learning' (registering memories) from their past experiences. They are also capable of communication, accurately computing their circumstances, using sophisticated cost–benefit analysis and taking tightly controlled actions to mitigate and control the diverse environmental stressors.
Nuevo León
Nuevo León is a state in the northeast of Mexico and south of Texas. It is known as the financial center of the country. It has a wide range of tourist attractions, such as museums, thematic parks, natural parks, grottos, as well as archaeological sites, gastronomy, and folklore. Its capital, Monterrey, the city of the mountains, is host venue of important international events, congresses, fairs, conventions and exhibitions.
Saale
Saale is the name of two rivers in Germany: Saale in Thuringia and Saxony-Anhalt (German: "Sächsische Saale") and the Saale in Northern Bavaria (German: "Fränkische Saale"). The larger, and better known Sächsische Saale springs out of the Fichtelgebirge at 728 m and joins the Elbe in Saxony-Asshalt. It is 413 km long.
Go Fish
Go Fish is a game with playing cards. 2 to 10 people can play.
Every player gets five cards. The rest of the cards (the deck) are put face down where all the players can get them. Cards that are the same color and the same number are called pairs. If a player has a pair, they put it face up in front of them so everybody can see it. The player to the left of the player who gave everybody their cards goes first. When it is a player's turn, they ask another player for a card that is the same color and number as one they already have. They can ask any player. If the other player has the card, they give it to the one that asked, and the one that asked puts the pair in front of them and gets to go again.
If the other player does not have the card, then they say, "Go Fish," and the player that asked takes a card from the deck and the next player goes. If a player has no cards when it is time for him to go, then he just takes a card from the deck and the next player goes. If there are no cards in the deck and the player has no cards, then that player does not get to go. The game ends when all the cards are face up in pairs. The winner is the player with the most pairs.
Track
Track or Tracks may refer to:
Chicago White Sox
The Chicago White Sox are a Major League Baseball team who play on the South Side of Chicago, Illinois. The club is in the Central Division of the American League. They are managed by Rick Renteria since 2017.
The White Sox won the 2005 World Series sweeping the Houston Astros in 4 games. They won the World Series before in 1906 and 1917 before going into an 88-year championship drought.
The Chicago White Sox finished 2006 with a 90-72 record, four games out of first place after taking two of three from the Minnesota Twins in the final week of the season at the Metrodome in Minneapolis.
The Sox began major league play in 1901. They took their name from the original name of the Chicago Cubs. The Cubs had first been known as the Chicago White Stockings. By 1901, they were being called the Colts. That allowed the new American League team to adopt the old National League team colors.
The Sox first played at South Side Park. In mid-season 1910, they opened Comiskey Park, which was just a few blocks north of South Side Park. They played at Comiskey for over 80 years. In 1991 they opened a park now known as Guaranteed Rate Field, just across the street to the south of Comiskey Park, and have played their home games there ever since.
Pollination
Pollination is part of sexual reproduction in plants. It describes how the pollen grains get to the female parts of a plant. Pollen grains, which contain the male gametes, need to get to where the female gamete(s) are.
What happens is basically the same as sexual reproduction in animals. Each pollen grain is haploid: it has half of the DNA (genetic information) that is needed to make a new plant. During fertilization this combines with the DNA that is in the egg of the female part and a zygote is formed. In seed plants a seed is started.
In flowering plants, pollen has to get from one flower to another. There are two main ways that this can happen: by non-living things like wind or water, or by living things such as insects or birds.
Maize (called corn in some parts of the world) is pollinated by wind. The male anthers let go of their pollen and it blows over to a nearby female flower on another corn plant. Most of the flowers are either male or female on a corn plant (monoecious), rather than both sexes in one flower (hermaphrodite).
Maize flowers have evolved (changed over time) to use wind for pollination. They do not need pretty petals. The pollen is light so it can blow around, and the ends of the female parts (stigma) are fluffy to catch all the tiny pollen grains.
With tomato plants, bees move the pollen from the male parts of one flower (anthers), to the female parts of another flower (stigma). The bee moves between flowers as it collects the nectar that the flowers make. The bees take the nectar and some pollen back to their hive, and the tomato plants get to reproduce (make new tomato plants).
Because the tomato flowers have evolved to attract bees, they have spread-out petals and are white to human eyes (bees, like most insects, can see into the ultraviolet range as well as our visual range of wavelengths). The pollen is often stuck together in clumps called "pollinia", which in turn get stuck to the bee. Bees are extremely hairy, and carry tiny electric charges which attract the pollen onto their bodies. Honey bees have special pollen baskets, usually on their rear legs; they groom the pollen off their bodies into these pockets.
Much of the pollen gets taken back to the nest or hive, where it is used as a source of protein, most needed by the larvae. Some gets rubbed off on the next flower, where the female stigma is sticky. A pollen tube grows down to permit the male gamete to fertilize an egg and make a seed.
90% of flowering plants are pollinated by animals, and only 10% use abiotic (non-living) pollination. Of these abiotic pollinations, 98% is done by wind and just 2% by water.
What happens after pollination is fertilisation. In plants it is a "double" fertilisation in which two sperm cells fertilize cells in the plant ovary. One of these is a normal fertilisation, which produces the embryo. The other is a unique kind of fertilisation which produces the seed endosperm.
The process begins when a pollen grain sticks to the stigma of the pistil (female reproductive structure). Then it germinates, and grows a long pollen tube. While this pollen tube is growing, a haploid cell travels down the tube behind the tube nucleus. This cell divides by mitosis into two haploid sperm cells.
As the pollen tube grows, it makes its way from the stigma, down the style and into the ovary. Here the pollen tube reaches the ovule and releases its contents (which include the sperm cells). One sperm makes its way to fertilize the egg cell, producing a diploid (2"n") zygote. The second sperm cell fuses with two cell nuclei, producing a triploid (3"n") cell.
As the zygote develops into an embryo, the triploid cell develops into the endosperm, which serves as the embryo's food supply. The ovary now will develop into a fruit and the ovule will develop into a seed.