The blood flows through the vessels of the heart to keep it going
Answer:
A fall-arrest system should be worn while climbing a tree or any tall structure. This will enable the person to have a thing to break or slow his fall if he loses his grasp from the trunk of the tree.
<span>1. temperature
2.water purification
3. succession
4. alien species
5. conduct a survey of a species population in an ecosystem
6. adopt ecological conservation practices</span>
Answer:
Glucose and oxygen are changed into energy and carbon dioxide, so carbon dioxide are released into the atmosphere during the process of cellular respiration.
