Infected cells can release chemicals that travel through the bloodstream to alert

the brain. the brain then sends signals along [veins; muscles; nerve cells;

bones] to increase the temperature of the body. white blood cells are brought into

the infected area using the [digestive system; respiratory system; circulatory

system; endocrine system]. based on the graph, the infected area most likely

stops releasing chemicals to alert the brain of an infection [2 hours; 3 hours;

5 hours; 7 hours] after the infection starts.

veins; digestive system; 2 hours

muscles, respiratory system; 4 hours

nerve cells; circulatory system; 5 hours

nerve cells; endocrine system; 7 hours

send me question so i can u

alkaline metals are lithium, sodium, rubidium, potassium, cesium and francium.

alkali metals have electronegativity from 0.7 to 1, lowest in periodic table of elements, which means that alkali metals (i group in periodic table) has positive oxidation number in compounds.

electronegativity is a chemical property that describes the tendency of an atom to attract a shared pair of electrons towards itself.

alkaline metals (far left in main group) have lowest ionizations energy and easy remove valence electrons,

for example, potassium is the alkali metal and has a single valence electron in the outer electron shell.

electron configuration of potassium is: ₁₉k 1s²2s²2p⁶3s²3p⁶4s¹.

they can not exist alone in nature, because they are very reactive.

your answer would be “dry”