<span>This is an example of Experimenter bias.In research itself stated that girls have more multi tasking skills than boys.Boys can concentrate only on a single thing but girls have the ability to do multiple things at the same time.So even in mathematical problems girls can solve easily and find different solution to the same problem but boys will think in only one way to achieve the solution.</span>
Caravels were lightweight ships used in the XV and XVI century, mainly by explorers from Portugal and Spain.
Due to its light weight and large size, the caravel assured a faster sailing time as well as lots of space to transport goods and food for the sailors, thus, making it easier for longer voyages.
Perphaps the most famous caravels were the ones sailed by Columbus in which he discovered America.
Propose a relationship between two variables
Hypotheses propose relationships between two variables. They usually include the direction of the relationship; in other words, they usually include whether the variables move in the same direction (positive) or in opposite directions (negative).
Domain - Archea, Eubacteria, Eukaryote.
Kingdom - Plantae, Animalia, Fungi, Protists, Eubacteria (Monera), Archaebacteria.
Phylum.
Class.
Order.
Family.
Genus.
Species - smallest classification.
Archaea: very ancient prokaryotic microbes.
Eubacteria: More advanced prokaryotic microbes.
Eukaryota: All life forms with eukaryotic cells including plants and animals.
<span>A. A farmer who has to give most of what he farms to someone else
A serf was almost a slave to the king or lord.
Hope that helps.</span>
