Answer:
1- The amount of time passed in hours before getting a sunburn.
2- 30 minutes, 1 hour 30 minutes, 5 hours
3- SPF 15 so that person C won't get a sunburn until after 15 hours.
4- SPF 15 is more effective because when you add the time passed until you got a sunburn with SPF 4 and compared that to what you got when adding up the data from using SPF 15, you can see that it is more effective.
5- The number in the SPF rating stands for about how much time an average person can go without getting sunburned.
Hope this helps!
-Coconut;)
The answer is C. If it's being controlled then the ones caring out the experiments are the head of it.
Answer:
Stem cells are simple, unspecialised cells found in animals and plants that have the ability to divide to form cells of the same type. They can also differentiate into a variety of specialised cells. Stem cells can be harvested from embryonic umbilical cord or adult bone marrow.
The student is actually doing replication
Answer: Option B
<u>Explanation:</u>
A student reads about a particular experiment, gets inquisitive to learn more and hence tries to copy that particular experiment. This is called as replication as the student tries the same methodology and process adapted to perform the experiment. He tries to obtain the same result.
This result fascinates him giving assurance of the experiment. It also helps motivate trying different experiments. It also inspires him to make further researches.
