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To discuss the use of stars and planets with regard to the development of calendars (m20213)
Subject: Science and Technology
Language: English
Popularity: 61.04%
Revised: 2009-03-12
Revisions: New
To discuss the ways in which organisms change over time (m20259)
Subject: Science and Technology
Language: English
Popularity: 65.44%
Revised: 2009-03-12
Revisions: New
To distinguish between herbivores, carnivores and omnivores (m20147)
Subject: Science and Technology
Language: English
Popularity: 91.01%
Revised: 2009-03-11
Revisions: New
To distinguish the most important groups of materials (m20311)
Subject: Science and Technology
Language: English
Popularity: 53.93%
Revised: 2009-03-13
Revisions: New
To Eat or to Mate? Sexual Cannibalism in Mantodea and Arachnid Species (m34755)
Keywords: Arachnid, cannibalism, Mantodea, sexual selection
Summary: Fatal attraction takes on an entirely new meaning in the behavior of sexual cannibalism. In many spider and mantis species, mating can turn fatal when the female consumes the male before, during, or immediately after copulation. This curious behavior has widely contested adaptive value. Males incur obvious fitness costs from ... selection pressures
Subject: Science and Technology
Language: English
Popularity: 82.99%
Revised: 2010-07-15
Revisions: 3
To emphasis the sensible use of the resources of the earth (m20318)
Subject: Science and Technology
Language: English
Popularity: 3.88%
Revised: 2009-03-13
Revisions: New
To examine the magnetic field of a bar magnet (m20371)
Subject: Science and Technology
Language: English
Popularity: 3.22%
Revised: 2009-03-14
Revisions: New
To explain convection as a natural phenomenon (m20158)
Subject: Science and Technology
Language: English
Popularity: 69.49%
Revised: 2009-03-11
Revisions: New
To explain how fossils were formed (m20249)
Subject: Science and Technology
Language: English
Popularity: 57.95%
Revised: 2009-03-12
Revisions: New
To explain that all matter occupies space and has volume and mass (m20459)
Subject: Science and Technology
Language: English
Popularity: 85.56%
Revised: 2009-03-16
Revisions: New
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Total Collections: 1317
Total Modules: 21935