What is the Wallace Line and why is it significant?
The Wallace and Weber lines are imaginary dividers used to mark the difference between species found in Australia and Papua New Guinea and Southeast Asia. This is especially apparent when considering the difference in mammals between the two regions.
What does the Wallace line tell us about evolution?
To account for the phenomenon, Wallace proposed an imaginary line to divide the region into two parts. The animals found on each side of the line can be shown to have an evolutionary connection to either Asia (to the West of the Wallace line) or Australasia (to the East).
What is interesting about the Wallace Line?
The Wallace Line does not actually exist in reality. It is an imaginary line that intersects the Lombok Strait between the Indonesian islands of Bali and Lombok to the south, and extends north through the Makassar Strait between Kalimantan (Borneo) and Sulawesi.
What is the significance of Wallace’s biogeographical regions?
Many cosmopolitan animal groups live in multiple of these regions, but Wallace thought constructing biogeographical regions was still important because, as the title of his book suggests, a sense of what regions share biota can help scientists figure out historical associations between different landmasses.
What is Wallace’s line quizlet?
Wallace's line is the zoogeographical boundary proposed by Alfred Russel Wallace that separates the marsupial fauna of Australia and New Guinea from the non-marsupial fauna of Indosnesia.
Who made the Wallace Line?
naturalist Alfred Russel Wallace Wallace Line, boundary between the Oriental and Australian faunal regions, proposed by the 19th-century British naturalist Alfred Russel Wallace.
How did Wallace contribute to the history of ideas about evolution?
How did Wallace contribute to the history of ideas about evolution? He proposed a theory of evolution similar to Darwin's. How did the geologist Charles Lyell influence Darwin? He suggested that slow, gradual changes shaped the features of Earth.
What is the Wallace line for kids?
The Wallace Line is an imaginary line in Indonesia between Borneo and the island to its immediate east, Sulawesi. The line has ecological significance because it separates two zoogeological regions that are respectively associated with Asia and Australia.
What did Alfred Russel Wallace discover?
Alfred Russel Wallace discovered the concept of evolution by natural selection. Although now rarely mentioned as the discoverer (Darwin, who discovered the theory independently, is usually cited) Wallace enjoyed a high reputation in his lifetime and received many of science's most prestigious awards.
Why is Wallace’s Line significance in biogeography quizlet?
Why is Wallace's line significant in biogeography? Because Wallace's line divides two very distinctive faunas that are geographically very close together.
What is the Wallace Line Group of answer choices?
The Wallace Line or Wallace's Line is a faunal boundary line drawn in 1859 by the British naturalist Alfred Russel Wallace and named by English biologist Thomas Henry Huxley that separates the biogeographical realms of Asia and Wallacea, a transitional zone between Asia and Australia.
How did Wallace influence Darwin?
After a variety of zoological discoveries, Wallace proposed a theory of evolution which matched the unpublished ideas Darwin had kept secret for nearly 20 years. This encouraged Darwin to collect his scientific ideas and collaborate with Wallace. They published their scientific ideas jointly in 1858.
How did Wallace contribute to the theory of evolution quizlet?
How did Wallace contribute to the history of ideas about evolution? He proposed a theory of evolution similar to Darwin's. How did the geologist Charles Lyell influence Darwin? He suggested that slow, gradual changes shaped the features of Earth.
When was the Wallace Line invented?
1859 The Wallace Line or Wallace's Line is a faunal boundary line drawn in 1859 by the British naturalist Alfred Russel Wallace and named by English biologist Thomas Henry Huxley that separates the biogeographical realms of Asia and Wallacea, a transitional zone between Asia and Australia.
How did Alfred Wallace impact Darwin in his work?
How did Alfred Wallace impact Darwin in his work? In 1858, Darwin received a manuscript from Alfred Russell Wallace, who had developed a theory of natural selection similar to Darwin's. Darwin quickly finished the Origin of Species and published it the next year.
Why don t Scientists agree on a single definition of species?
Why don't scientists agree on a single definition of species? –Because research method can dictate which definition is most useful. -Because they have not discovered the true definition of a species.
What did Wallace contribute evolution?
His research on the geographic distribution of animals provided critical support for his evolutionary theories and led him to draw a boundary line through Southeast Asia that divides Asian and Australian animal groups. Wallace's Line, as it was later named, runs from the Indian Ocean to the Philippine Sea.
What best describes Alfred Russel Wallace’s contributions to science quizlet?
Alfred Russel Wallace Best known for independently conceiving the theory of evolution through natural selection. His paper on the subject was jointly published with some of Charles Darwin's writings in 1858, which prompted Darwin to publish his own ideas in On the Origin of Species.
Who created the Wallace Line?
naturalist Alfred Russel Wallace Wallace Line, boundary between the Oriental and Australian faunal regions, proposed by the 19th-century British naturalist Alfred Russel Wallace.
What was the significant difference between Darwin and Wallace’s theories?
Darwin argued that human evolution could be explained by natural selection, with sexual selection as a significant supplementary principle. Wallace always had doubts about sexual selection, and ultimately concluded that natural selection alone was insufficient to account for a set of uniquely human characteristics.
Do animals mate with other species?
Usually, different species don't mate. But when they do, their offspring will be what are called hybrids. The molecules of DNA in each of an animal's cells hold instructions. These guide what an animal looks like, how it behaves and the sounds it makes.
What was Alfred Wallace’s theory?
Wallace noticed a striking pattern in the distribution of animals around the archipelago. He proposed an imaginary line dividing the region in two parts. Later known as Wallace's Line, this marked the boundary between the animal life of the Australian region and that of Asia.
What was the significance of Alfred Wallace to Charles Darwin quizlet?
Alfred Russel Wallace Best known for independently conceiving the theory of evolution through natural selection. His paper on the subject was jointly published with some of Charles Darwin's writings in 1858, which prompted Darwin to publish his own ideas in On the Origin of Species.
What’s the Wallace?
a person who takes part in an armed rebellion against the constituted authority (especially in the hope of improving conditions) English naturalist who formulated a concept of evolution that resembled Charles Darwin's (1823-1913) synonyms: Alfred Russel Wallace. example of: natural scientist, naturalist.
What did Darwin and Wallace discover?
Abstract. Charles Darwin and Alfred Russel Wallace independently discovered the mechanism of natural selection for evolutionary change.
Which of the following was the key point of Darwin and Wallace’s theory of evolution by natural selection?
The four key points of Darwin's Theory of Evolution are: individuals of a species are not identical; traits are passed from generation to generation; more offspring are born than can survive; and only the survivors of the competition for resources will reproduce.
Do monkeys give oral?
Different forms of self and partner genital stimulation have been observed in the animal kingdom. Oral sex has been observed throughout the animal kingdom, from dolphins to primates. Bonobos have been observed to transition from a simple demonstration of affection to non-penetrative genital stimulation.
Can a gorilla and a human breed?
Probably not. Ethical considerations preclude definitive research on the subject, but it's safe to say that human DNA has become so different from that of other animals that interbreeding would likely be impossible.
How is Wallace’s view scientific?
Wallace devised the first modern definition of what a species is – a slightly modified version of which would later become known as the Biological Species Concept; in addition he believed that speciation typically occurs in allopatry or parapatry – when diverging populations are geographically separated or abutting.
How did Alfred Wallace contribute to the theory of natural selection?
Wallace's research on the geographic distribution of animals among the islands of the Malay Archipelago provided crucial evidence for his evolutionary theories and led him to devise what soon became known as the Wallace Line, the boundary that separates the fauna of Australia from that of Asia.