What evidence did scientists use to decide that hominids were more diverse than has been suggested by the early australopithecine finds such as Lucy?

What evidence did scientists use to decide that hominids were more diverse than has been suggested by the early australopithecine finds such as Lucy? What evidence did scientists use to decide that hominids were more diverse than had been suggested by the early australopithecine finds such as Lucy? Fossil finds in East and South Africa […]

What is national budgeting process?

What is national budgeting process? Government budgeting is the critical exercise of allocating revenues and borrowed funds to attain the economic and socia l goals of the country. Budgeting for the national government involves four (4) distinct processes or phases : budget preparation, budget authorization, budget execution and accountability. What is the difference between business […]

What is the drop out rate for students who fall into the popularity category of rejected aggressive?

What is the drop out rate for students who fall into the popularity category of rejected aggressive? – Rejected children’s drop out rate is 20-30%, against 8% of other status groups. Aggressive-rejected: – Higher levels of externalizing behaviours such as hyperactivity, ADHD, conduct disorders and delinquency. – Internalizing problems: depression, loneliness, obsessive-compulsive behaviours. Which children […]

What is the difference between a reliable source and a non reliable source?

What is the difference between a reliable source and a non reliable source? Reliable sources have links to verifiable, current evidence, unreliable sources do not. What are reliable sources? A reliable source is one that provides a thorough, well-reasoned theory, argument, discussion, etc. based on strong evidence. Scholarly, peer-reviewed articles or books -written by researchers […]

Why is Opal a Mineraloid?

Why is Opal a Mineraloid? Opal is a hydrated amorphous form of silica (SiO. nH2O); its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Because of its amorphous character, it is classed as a mineraloid, unlike crystalline forms of silica, which are classed as minerals. What […]

Why do caterpillars shoot their frass?

Why do caterpillars shoot their frass? behavior. Perhaps launching their frass is a way to avoid being found by predators. To evaluate whether the smell of frass helps predators find and locate silver-spotted skippers, Martha conducted an experiment with a wasp predator that eats these caterpillars. Why do silver-spotted skippers shoot their frass? Many caterpillars […]

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