What is the relationship between the change in migration pattern and the evolution of physical characteristics of the U. K. blackcaps?

Asnail, elodea (aquatic plant), or both were added to the tubes and they were stoppered. tubes were placed under a grow light for 24 hours and the results recorded. the test tubes were then covered for 24 hours to produce a dark environment and the results recorded. which statement best explains the change in test tube d from the light setup to the dark setup.

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity

What are two ways that harvesting algae from the ocean may benefit human society? how might the harvest of algae negatively impact the ocean communities where that algae grows? how could this be prevented?