Scientific Investigation
Life at the Molecular and Cellular Level
Life at the System and Organisms Level
Interaction of Life Forms
Misc.
100
A student is investigating the effect of plants on indoor air quality and states, "If plants are added to an indoor environment, the air quality will improve." This statement is an example of -
A hypothesis
100
Place the phases of mitosis in the correct sequence.
B, A, C, D
100
Red flower color is dominant to white flower color in rose plants. What is the expected result of a cross between two heterozygous rose plants?
75% red, 25% white
100
For a population to continue increasing indefinitely, what must be true?
The resources in the environment must be unlimited.
100
A teacher in a biology laboratory is using a chemical to dissolve an eggshell. Which picture shows the safest laboratory practice?
D
200
A biologist gathered data to show the interaction of the golden-cheeked warbler and juniper tree populations. Which conclusion did the biologist most likely make from the data shown?
The optimum habitat for the golden-cheeked warbler is 100 juniper trees per acre.
200
What did Rosalind Franklin contribute to the understanding of DNA?
An image indicating the shape of a DNA molecule.
200
To classify an organism a scientist finds in the field, which of these will the scientist first compare to other known organisms?
Dietary habits, ecological niche, physical structure, or reproductive methods.
Physical structure
200
Darwin's explanation for evolution was dependent on which of the following scientific concepts?
The ability of organisms to learn, the significance of social behaviors to survival, the existence of variations in a population or the relationship between size and survival/
The existence of variations within a population.
200
A student conducted an investigation to determine the effect of water temperature on the amount of sugar that dissolves in a beaker of water. Which columns labelled in the image represent constants, and which represent variables?
A, B = Constants
C, D = Variables
300
Some functions of several structures of a fish are listed in the chart. Which cellular structures correspond to each letter?
A - Nucleus
B - Cell membrane
C - Vacuole
D - Flagellum
300
This chart shows observations made of an unknown organism. Based on this information, the organism most likely belongs to the kingdom-
Fungi
300
Which of the following best helps scientists determine the age of fossils?
Physical traits, genetic makeup, reproductive strategy, or radioactive isotopes
Radioactive Isotopes
400
What can be concluded from this graph?
The enzyme lowers the energy of activation for the reaction
400
Although controversial at first, the germ theory of disease proposed that microorganisms were the cause of many diseases. What was a medical result of the general acceptance that microorganisms cause disease?
The development and use of antibiotics
500
Studying the differences between fossils and modern organisms helps scientists better understand the-
Evolution of organisms over time