Safari File Edit View History Bookmarks Window Help .. . nationalu.brightspace.com C N MyNU B Final Exam - BIO100 Survey of Biosci.. B Quizzes - BIO100 Survey of Bioscien.. ChatGPT Final Exam 0:51:34 remaining Question 42 (2 points) An organism's role in its environment is called its: niche. keystone interaction. bio-economy. O biomass . O population. Question 43 (2 points) You plant one acorn in a forest and a second acorn in an open field. After 20 years, the oak tree in the forest is tall and thin, whereas the oak tree in the field is shorter, thicker, and has a broad crown. What is the most likely explanation for this outcome? The oak tree in the field had heavy competition from the grass species. The oak tree in the forest had higher levels of growth hormones. O The oak tree in the field did not have sufficient shade to reach full height. O The oak tree in the forest had to compete for light with the neighboring trees. The topsoil in the field was less rich in nutrients than the topsoil in the forest. 49 63.780 AUG 29 tv MacBook Pro