Answer:
Homologous structures can be described structures which originate in different organisms from a common ancestor and may or may not have the same functions.
Zeuglodons can be described as ancient whales and Orca is a common whale today known as the killer whale.
<u><em>Scientific studies show that Zeuglodans and Orca have many structures in common such as:</em></u>
- <u><em>Having teeth with two roots</em></u>
- <u><em>The presence of nostrils</em></u>
- <u><em>Pelvis and internal femur bones</em></u>
A large central vacuole, and chloroplasts.
Given that an average human has a heart rate of 70 beats per minute and if one is to have a 70 year life span, the number of times it will beat is 2,575,440,000 times. This was computed by multiply 70 years by 365 days/year x 24 hours/day x 60 minutes/hour x 70 beats/min. Thus, the heart will beat numerous times before it finally stops.
Biochemistry is the study of the chemical processes occurring in living matter.
After mining, to reclaim the land, the depression is filled with rocks then the top is filled with loosely graded soil. Introduction of early succession plants is important before big trees can grow. The early succession plants help in the breaking down of the rocks into soil hence making the topsoil deeper to support trees.