187 to achieve the maximum benefit for the heart when exercising, the heart rate (in beats per minute) should be in the target heart rate zone. the lower limit of this zone is found by taking 70% of the difference between 220 and the age of the person. the upper limit is found by using 85% of the difference. complete parts a through

Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?

Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?

Consider the venn diagram of plant reproduction. where in this image, areas a - d, would you insert the picture of the orange lily?