Lactic acid build up in muscles is a sign that

a. aerobic respiration capacity has not been reached

b. respiration is operating effectively

c. insufficient oxygen is reaching the muscles

d. the muscles will be able to operate continuously for a long time

Which of the following is true about the solar wind? select all that apply the solar wind blows dust around on the moon. the solar wind interacts with earth's magnetosphere. the solar wind only interacts with the earth and its moon. the solar wind may be the source of water on the moon.

What is a cordon and where is it found

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.