Piano Guidance
Piano Guidance
Photo: Brenda Timmermans
Despite being useful as multipurpose tools, that fact females can cope without them would suggest tusks aren't essential for survival.
It's based on ostinato bass figures in 8/8 time, and mostly uses the 12-bar blues harmonic scheme. Mar 31, 2020
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PARTS OF THE COMPUTER KEYBOARD AND THEIR USES Numeric keys: It is used to enter numbers. ... Alphanumeric keys: These are used for typing letters,...
Read More »List an elephant's most iconic characteristics and tusks should be right behind the long trunk, and arguably above big ears and thick skin. Tusks are elongated teeth that grow continuously and are used to dig for food and nutrients, clear paths through vegetation, mark or remove tree bark, and for fighting between males. The tusk can serve those diverse purposes thanks to the properties of its main material, ivory, which makes it strong and stiff, hard and tough. Ivory's impressive properties are attractive to humans. Traditionally used to make art and ornaments of cultural value, it's become a valuable status symbol. But as studies have shown, demand for ivory has helped to fuel a multibillion-dollar wildlife trade that encourages illegal hunting. And now new research has shown that this may also have left an evolutionary mark on elephants. A recent study by biologists at Princeton University looked at African savannah elephants in Mozambique's Gorongosa National Park. During a civil war that lasted from 1977 to 1992, more than 90 per cent of large herbivores were slaughtered, including elephants: the population dropped from more than 2,500 individuals 50 years ago, to less than 250 in 2000. And while the population decreased, the proportion of female elephants without tusks increased: comparing historical videos to modern footage showed a rise from 19 per cent to 51 per cent. Among females born after the war, one-third are tuskless. In mammals, sex is dictated by a pair of chromosomes: females are XX, males XY. Because nearly all male elephants have tusks, the Princeton biologists suspected that the tuskless trait was linked to the X. If inheriting the genes for making tusks is lethal when inherited on a male's lone X chromosome, a female with two Xs could be spared if they inherit one normal copy of the gene. The pattern of genetic inheritance for the tuskless trait was consistent with that hypothesis. After searching the genomes of 11 tuskless elephants for signatures of recent evolution, the biologists found one relevant DNA sequence on the X chromosome: AMELX, a gene that helps produce enamel and cementum, two minerals that coat tusks and teeth. Mutations that delete the equivalent gene in humans can cause an inherited disorder where women lack 'maxillary lateral incisors', the teeth that become tusks in elephants (the ones next to the canines).
C# Guitar Chord (E Shape) To play this chord: Barre your 1st finger across all the strings on the 9th fret. Place your 3rd finger on the 11th fret...
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American basswood is a stately, wide-spreading tree, 60-80 ft. tall, occasionally growing taller. Conical in its younger form, the crown becomes...
Read More »Though humans are technically part of nature, calling that process 'natural selection' is vague. The evolution of tuskless elephants is an example of 'harvesting selection' or 'human-driven selection'. Despite being useful as multipurpose tools, that fact females can cope without them would suggest tusks aren't essential for survival. Indeed, among the three living relatives, females of the forest and savannah species of African elephant tend to be tusked, but female Asian elephants might only have short protrusions called 'tushes'. Tusks don't seem to be vital to Asian males either: in Sri Lanka just 10 per cent are tusked. One explanation is that 3,000 years of hunting and domestication favoured the loss of tusks in Asia, whereas African elephants have only recently been exposed to human-driven selection.
The full version of Fur Elise is considered reasonably difficult, broadly an intermediate piece around grade 5, but a shorter arrangement of only...
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The Yamaha P-45 is one of the main keyboards I recommend for kids. It has 88 fully-weighted keys and a solid piano sound. Aug 8, 2022
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“So when you alternate between a light touch and biting, it's a way to heighten arousal and pleasure.” Additionally, some people can become...
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Pianoforall is one of the most popular online piano courses online and has helped over 450,000 students around the world achieve their dream of playing beautiful piano for over a decade.
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the masseter The strongest muscle based on its weight is the masseter. With all muscles of the jaw working together it can close the teeth with a...
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