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A hydroxide ion acting as a nucleophile in an S N 2 reaction, converting a haloalkane into an alcohol. In chemistry, a nucleophile is a chemical species that forms bonds by donating an electron pair. All molecules and ions with a free pair of electrons or at least one pi bond can act as nucleophiles. Because nucleophiles donate electrons, they ...
Life on Our Planet is an American television nature documentary series released on Netflix and produced by Amblin Television and Silverback Films. Executive-produced by Steven Spielberg and narrated by Morgan Freeman, the series focuses on the evolutionary history of complex life on Earth. Upon its release, the series received generally mixed ...
Life was the first series commissioned by the then Network Controller of BBC One, Peter Fincham, just weeks after he took up the post in March 2005. [4] It was reportedly one of the most expensive documentaries ever ordered by the broadcaster, with a budget of £10 million (though the BBC have never confirmed this figure). [5]
Alternate plant life Physicists have noted that, although photosynthesis on Earth generally involves green plants, a variety of other-colored plants could also support photosynthesis, essential for most life on Earth, and that other colors might be preferred in places that receive a different mix of stellar radiation than Earth.
This is a list of notable films that are primarily about animals.This include film where the main characters are animals or the plot revolves around an animal. While films involving dinosaurs and other prehistoric animals are included on this list, those concerning legendary creatures, such as dragons, vampires, or animal-human hybrids like werewolve are not.
In animals, the plasma membrane is the outer boundary of the cell, while in plants and prokaryotes it is usually covered by a cell wall. This membrane serves to separate and protect a cell from its surrounding environment and is made mostly from a double layer of phospholipids , which are amphiphilic (partly hydrophobic and partly hydrophilic ).
Nocturnal Animals ending: What happens to Edward and Susan? Susan continues to read Edward's novel. In the story, one of the three men who abducted and murdered Laura and India has been killed in ...
The bloodless animals were divided into five groups: cephalopods, crustaceans, insects (which included the spiders, scorpions, and centipedes), shelled animals (such as most molluscs and echinoderms), and "zoophytes" (animals that resemble plants). This theory remained dominant for more than a thousand years.