4. A plane inclined at 30° to the horizontal is used to load a drum of oil weighing 700 N onto a cargo truck 2 m high. If the system
provides 75% efficiency, calculate its mechanical advantage.

The phylogeny chart shows the evolution of camels. camelus is the modern-day camel. based on this chart, which three statements are true? ⭕ modern camels are more related to stenomylus than to eschatius. ⭕ stenomylous and modern camels do not share a common ancestor. ⭕ modern camels are more related to camelops than to aepycamelus. ⭕ pliauchenia and oxydactylus may share similar features. ⭕ procamelus and stenomylous may share similar features.

What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?

Which is an important function of normal flora? a. aid with bone marrow production. b. crowd out pathogenic bacteria. c. destroy digestive track pathogens. d. manufacture iron in the bloodstream.