Tundra has mostly mosses, lichens, and grasses. What abiotic factors prevent other vegetation from growing in this biome? Hot summers and cool winters; low rainfall
Cold winters, high precipitation, and lack of trees
Permanently frozen soil and low precipitation
High precipitation and little seasonal change

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.

answer >   yes we do, women; have three holes, urethral opening(pee hole, vagina, and the women pee/girls pee out of the urethra like the men do; only they have a single opening to pee/ejaculate.   (sorry if i'm too forward with this, but this is for a biology class, isn't it? )

hope that !         : )