People traveling to foreign countries are often advised to boil their water before they drink it. Boiling kills any parasites in the water. Both protists and bacteria can be transmitted by drinking unclean water. How are protist and bacteria cells different? (science btw)

In what part of the body does the most muscle activity happen?

Can a trait be both polygenic and have multiple alleles? explain why or why not.

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water