Answer:
a. It can be used for photosynthesis.
Explanation:
Since carbon dioxide is needed in the photosynthesis process, then much of the carbon dioxide which is produced by green plants is not always excreted in form of metabolic waste because it can be easily used in the photosynthesis process.
Animals expel energy to keep warm
Answer:
A respiration rate under 12 or over 25 breaths per minute while resting is considered abnormal.
Explanation:
A person's respiratory rate is the number of breaths you take per minute. The normal respiration rate for an adult at rest is 12 to 20 breaths per minute.
Learned about eating healthy
It is a positive relationship because they go hand in hand and both promos are about the same thing