Answer:
The percentage of carbon dioxide in the air is 0.04%
You could argue that in early succession areas species may have not been adapted or evolved. In Darwin's theory, life began in a shallow, warm pond. If that is the case, species would then venture deeper when their area they are in is suitable and having success
I think the answer is D. A good indicator is the resting heart rate. Exercise strengthen your heart and it makes it more efficient. The resting heart rate shows of the heart is pumping blood normally each time it contracts. Having a normal resting heart rate would mean a healthy heart.
The third one is incorrect.
A plant releases oxygen during photosynthesis not carbon dioxide.
Hope this helps.
Basic charged atomic particles are electrons (negatively charged) and protons (positively charged). It is a particle on an atomic scale that is charged
