What will occur if you increase the effort arm on a lever?

a. it will increase the amount of force needed

b. it will decrease the amount of force needed

c. it will not change the amount of force needed

d. the amount of force needed would vary

Which sequence correctly shows the path of carbon dioxide during repiration?

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

Me the formula cacl2 represents the compound