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CED-9 encodes the apoptosis regulator CED-9 protein which is an important negative regulator protein in the apoptosis pathway of C. elegans. [9] The protein consists of 280 amino acids and has a molecular weight of 31824.42 Da. [ 10 ] The structure of this protein has been solved using X-ray diffraction revealing 9 Helices , 2 Beta strands ...
The heliotrope is an instrument that uses a mirror to reflect sunlight over great distances to mark the positions of participants in a land survey. The heliotrope was invented in 1821 by the German mathematician Carl Friedrich Gauss.
Advanced Placement (AP) Human Geography (also known as AP Human Geo, AP Geography, APHG, AP HuGe, APHug, AP Human, HuGS, AP HuGo, or HGAP) is an Advanced Placement social studies course in human geography for high school, usually freshmen students in the US, culminating in an exam administered by the College Board. [1]
A 1740 map of Paris. Ortelius World Map, 1570. Historical geography is the branch of geography that studies the ways in which geographic phenomena have changed over time. [1] In its modern form, it is a synthesizing discipline which shares both topical and methodological similarities with history, anthropology, ecology, geology, environmental studies, literary studies, and other fields.
AP World History: Modern was designed to help students develop a greater understanding of the evolution of global processes and contacts as well as interactions between different human societies. The course advances understanding through a combination of selective factual knowledge and appropriate analytical skills.
Islamic geography began in the 8th century, influenced by Hellenistic geography, [2] combined with what explorers and merchants learned in their travels across the Old World (Afro-Eurasia). [1] Muslim scholars engaged in extensive exploration and navigation during the 9th-12th centuries, including journeys across the Muslim world , in addition ...
The percentage of students scoring a grade of "5" was only 7.0% in the 2021 testing administration. It remains one of the lowest "5" scoring AP Exams to this date right under AP Art History, AP English Literature & Composition, AP English Language & Composition, and AP World History. The AP Environmental Science exam was first administered in 1998.
The tifa, tiwa or tiva is a single-headed goblet drum used throughout the Maluku Islands of Eastern Indonesia, where it is traditionally the "dominant instrument" in Maluku province music. [1] The term tifa has been used outside of the Maluku Islands, including on the island of Java and on the island of New Guinea , in Indonesia's Papuan ...