Bio 1500 Final Exam review Questions and Answers 100% Pass

Bio 1500 Final Exam review Questions and Answers 100% Pass Suppose you worked very hard and have earned a 100% average for lab this semester. You have unexcused absences for many Discussions, though, giving you a Discussion average of 60%. How is your combined 'Lab and Discussion' score for the course calculated and what will it be? - Lab and Discussion Score are multiplied and the combined score would be 60% Think about the Timeline and the "From LA to NY - Deep time analogy" videos reviewed in the course. They show us that the major events in the history of life happened .................. - Most events happened in the last 1 billion years Which of the following organisms evolved the earliest among them and which one was the last one to appear on earth? dinosaurs - cyanobacteria - dragonflies (e.g. meganeura) - first animals - Evolved first: cyanobacteria Last one to appear: dinosaurs 2100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 Simple diffusion is very efficient for moving molecules around inside cells, but it is inefficient for moving molecules from one part of the body to another part of the body. Why? - Since the time of diffusion increases with the square of the distance, diffusion is to slow to move molecules around the body. Which statement describes best the feeding habits of adult dragonflies? - Adult dragonflies hunt other flying insects while they are flying themselves; they cannot feed while walking or sitting. Thinking about the online lecture on the history of Oxygen: Which process/factor explains the low level of atmospheric Oxygen from 2.5 to 1 billion years ago, despite the presence of photosynthetic activities by cyanobacteria and algae? - The O2 oxidized other substances (e.g. iron or silicone) resulting in most of today's minerals Diffusion is often defined as 'the movement of molecules from an area of high concentration to an area of low concentration.' Which of the following statements best explains the reason for this pattern of movement? - The molecules move randomly, resulting in more of them moving away from a high-density area than moving away from a low-density area. According to the Earth viewer activity you did as one of your online learning assignments, the atmospheric Oxygen level in the Carboniferous period was lower and the Carbon Dioxide level was higher than/as today. - higher 3100% Pass Guarantee Sophia Bennett, All Rights Reserved © 2025 A drop of dye was put in a glass of water. After many hours, the dye is equally distributed in the water, thus, diffusions has reached equilibrium. How do dye particles behave when equilibrium has been reached? - The dye particles switch places with neighboring dye particles Which is the correct scientific definition of evolution? - The change of allele frequencies in a population over time In a population of minnows (=little fish) living in a stream, individuals with long bodies are able to swim faster than minnows with shorter bodies. Body length is determined by an individual's genes. A large predatory fish invades the stream and begins feeding on the minnows. Over time, the average length of the minnows in the population increases. Why? - Minnows with long bodies are reproducing more than minnows with short bodies. Why do cells perform photosynthesis? - to make glucose/c