Which of the following statements is not consistent with Darwin's theory of natural selection?
Individual organisms exhibit genetic change during their life spans to better fit their environment.
You notice that over the past month, many students on campus have started wearing a new style of school sweatshirt. You think to yourself that perhaps the bookstore has recently started selling this sweatshirt style. This prediction is an example of
If you eat a hamburger, you are mainly eating ground-up beef muscle. What levels of organization are represented in this ground-up muscle?
Organelle, cell, and tissue
A scientist performs a controlled experiment. This means that
two experiments are conducted, one differing from the other by only a single variable.
Which of the following organisms belongs to the group represented in Box 1?
Tree (diagram of sunlight entering, exiting as heat, and going through the tree as chemical energy)
The tree in your backyard is home to two cardinals, a colony of ants, a wasp's nest, two squirrels, and millions of bacteria. Together, all of these organisms represent
The role of a control in an experiment is to
provide a basis of comparison to the experimental group.
To have confidence that the results of the experiment were valid, you'd also want to know
whether any volunteers had colds at the start of the experiment.
Which of the following statements about living systems is false?
Living systems are composed of two or more cells.
Which of the following statements regarding a common cellular activity is false?
New cells are derived from cellular components like organelles.
The teeth of grain-eating animals (such as horses) are usually broad and ridged. This makes the teeth suitable for grinding and chewing. Meat-eating animals (such as lions) have pointed teeth that are good for puncturing and ripping flesh. This illustrates
a result of natural selection and connection between form and function.
Which of the following observations would provide the strongest evidence that the many different plants we call orchids are actually related to one another?
They all have the same common ancestor.
Consider the following statement: "If all vertebrates have backbones, and turtles are vertebrates, then turtles have backbones." This statement is an example of
A scientist examining a group of cells under the microscope notices the presence of nuclei within these cells. Chemical tests reveal that each cell is surrounded by a wall composed of cellulose. These cells must come from an organism that is a member of the kingdom
An antibiotic kills 99.9% of a bacterial population. You would expect the next generation of bacteria
to be more resistant to that antibiotic.
All organisms belonging to the kingdom Plantae
are photosynthetic and contain cells that are surrounded by cells walls with cellulose.
Which of the following statements about ecosystems is false?
Bacteria and fungi recycle energy within an ecosystem
Which of the following statements about the properties of life is false?
All organisms have the ability to maintain a constant internal temperature.
Which of the following statements about the leopard is false?
Leopards are the largest cat in the genus Pantera.
Your instructor asks you to look into your microscope to see a prokaryotic cell. You will be looking for a cell that
has a membrane.
Members of the kingdom Fungi
include the mushrooms and yeasts, and decompose the remains of dead organisms and absorb nutrients from the leftovers.
Which of the following statements about genetics is true?
Differences among organisms reflect different nucleotide sequences in their DNA.
Which was the experimental group? (Look back at test)
Group A only. (Took 3,000 mg of vitamin C daily; recovering from cold)