The concept of the struggle for existence<span> concerns the competition or battle for resources needed to live. It can refer to human society, or to organisms in nature. The concept is ancient, and the term </span>struggle for existence<span> was in use by the end of the 18th century. From the 17th century onwards the concept was associated with a population exceeding resources.
Hope this helped!
STSN</span>
So other scientists can try the exact same experiment and see if they both got the same results.
Answer:
B
Explanation:
A resource population is any part of the environment that can be used to meet another organism's needs. The first population acts as this because the second population is surviving by eating the first.
By assembling the rocks into parts of a bigger rock that might have eroded over time.
The answer is D because its comparing and the other will just be listing
