Biology EOC Practice Exam 2024/2025with all questions and answers already graded A+

The loulu tree in Hawaii reproduces by a see encased in fruit. Non-native species, such as pigs and rats, eat the fruit as a regular part of their diet, drastically reducing the regeneration rate of the loulu. What most likely would be the outcome for loulu trees in the next century without intervention? - ANSWER the would become extinct Which of these would lead to a lower rate of photosynthesis in a plant? - ANSWER a decrease in the amount of carbon dioxide in the air What is the result of the fertilization of an egg? - ANSWER it restores the diploid number of chromosomes Which of these best describes the initial change caused by a DNA mutation? - ANSWER a change in the sequence of base pairs A new species of snake was introduced to a tropical region. Scientists then notices a steady decline in the presence of field mice and an increase in the number of snakes. Which of these is the most likely explanation about why the population size of each animal changed? - ANSWER The mice became prey to the introduced snakes, allowing the snake population to increase but decreasing the mice population Which statement best describes an advantage of asexual reproduction for a population of organisms? - ANSWER the population can increase in number more rapidly The following cell structures are located within cells that make proteins. Which description best explains the relationship among these cell structures in making a protein. Nucleus, Ribosome, Endoplasmic Reticulum (ER) - ANSWER DNA in nucleus codes for protein - protein assembled in ribosomes and moves to ER - protein folds into its active shape Which of these best describes mutualism? - ANSWER a relationship between two species where both species benefit Which of these would be least likely to diffuse across the phospholipid bilayer of a cell membrane? - ANSWER sodium (Na) ions How would a drop in temperature most likely affect the processes of cellular respiration and photosynthesis? - ANSWER The rates of both cellular respiration and photosynthesis would decrease