Answer:
6.25 g of radon-222 is left over after 15.2 days
Explanation:
You must start by finding out how many half lives have occurred over the time. This can be done by dividing the time passed by the half-life.
15.2/3.8=4
Now that the amount of half-lives is known now you must take that amount away from the original sample.
100/2=50
50/2=25
25/2=12.5
12.5/2=6.25
Answer:
B. cellular respiration breaks down glucose while photosynthesis produces glucose
Pretty sure that the endocrine system is represented by the diagram
So the answer is endocrine
Answer: NO.Not a MONOPHYLETIC group yet.
This because MYRIMICA one of the decendant of most common ancestors of this group has been left out.Therefore MYRIMICA should be added.
Explanation: