Fiona wants to use the scientific method to answer the question “do oxygen levels in the air affect rates of photosynthesis? ” she reads about photosynthesis in her biology book and is ready to carry out the next step. what should she do next?
perform an experiment
design a procedure
make observations
form a hypothesis

What is the inability of an individual or a society to achieve a minimum standard of living known as ?

Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.