How did hummingbirds evolve?

How did hummingbirds evolve? Using DNA data collected from 451 birds representing 284 species of hummingbirds and their closest relatives, McGuire and his colleagues arranged the living groups in a family tree, and concluded that the branch leading to modern hummingbirds arose about 42 million years ago when they split from their sister group, the […]

Are all salmon freshwater fish?

Are all salmon freshwater fish? Typically, salmon are anadromous: they hatch in fresh water, migrate to the ocean, then return to fresh water to reproduce. However, populations of several species are restricted to fresh water throughout their lives. Folklore has it that the fish return to the exact spot where they hatched to spawn. Is […]

What are the different methods of marketing?

What are the different methods of marketing? Types of marketing strategies Paid advertising. This includes multiple approaches for marketing. Cause marketing. Cause marketing links the services and products of a company to a social cause or issue. Relationship marketing. Undercover marketing. Word of mouth. Internet marketing. Transactional marketing. Diversity marketing. What are the 4 types […]

What can you not take with Ritalin?

What can you not take with Ritalin? Because Ritalin is a stimulant medication, it should not be taken with other stimulant drugs or substances such as methamphetamine and cocaine. Doing so can cause a severe overreaction of the central nervous system. Can you take Concerta and Suboxone together? Interactions between your drugs No interactions were […]

Who supported the No Child Left Behind Act?

Who supported the No Child Left Behind Act? The final votes were 87-10 in the Senate and 381-41 in the House. Senators Ted Kennedy (D-MA) and Judd Gregg (R-NH) and Congressmen George Miller (D-CA) and John Boehner (R-OH) were its chief sponsors in the Senate and the House. Which president implemented No Child Left Behind […]

Why is English bond the strongest bond?

Why is English bond the strongest bond? What is the strongest brick bond? When building a 1 brick wall (215mm wide) or wider, the strongest bond is English Bond, this is because there are no vertical straight joints when looking on plan. On a 1/2 brick wide (102.5mm wide) wall, then half bond (stretcher bond) […]

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