The sentences below combine to form a strong explanation. check each sentence that resembles part of your response. a percentage compares the number of birds in the flock to the total number of birds in all flocks. if the percentage is high, the flock is more successful, so the flock should grow. if the percentage is low, the flock is struggling to eat, so the flock should shrink. i included of the above.

All resembles part of response  

Explanation:

All the given options are a part of a strong response. A strong response in general has following parts -  

a) A statement identifying the tool to evaluate the result with an explanation why particularly this tool has been chosen. Here in this example "percentage"is used and why it is used has also been explained well.

b) Interpretation of the result based on the selected tool for both positive and negative scenario

Here in this example both the cases "when percentage is high or low" has been explained well with proper reasoning.  

Hence, All resembles part of response  

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.