AP Biology Test 1 Exam Guide latest 2024

AP Biology Test 1 Exam Guide latest 2024 what is the correct ordering of the levels of complexity at which life is studied, from most simple to most complex? - CORRECT ANSWER-Cell, tissue, organ, organism, population, community A key point in Darwin's explanation of evolution is that? - CORRECT ANSWER-Any trait that confers even a small increase in the probability that its possessor will survive and reproduce will be a strongly favored will spread through the population After observing that fish live in clean water but not in polluted water, researchers state that "polluted water kills fish" This simple statement is an example of? - CORRECT ANSWER-a prediction The main purpose of any single experiment is to? - CORRECT ANSWER-test a prediction that is based on a hypothesis The advantage of controlled experiments is that? - CORRECT ANSWER-all variables are held constant except for one An example of what can be answered by means of hypothesis - CORRECT ANSWERAre red roses more beautiful than yellow roses? The atomic number of an element is the same as the number of ? in each atom - CORRECT ANSWER-protons Phosphorus has an atomic number of 15 and an atomic mass of 31. How many neutrons does it have? - CORRECT ANSWER-16 The ability of an atom to combine with other atoms is determined by - CORRECT ANSWER-the number and distribution of electrons Because atoms can have the same number of protons but a different number of neutrons, elements have - CORRECT ANSWER-isotopes