Exam 1: The Study of Life

Wood becomes petrified when its tissues are replaced by minerals. Although petrified wood is no longer part of a living organism, which property of life will still be present in the wood?

In the late 1800s, Louis Pasteur was searching for a vaccine for anthrax in livestock. One French veterinarian had a local reputation for being able to cure anthrax by applying oils and wrapping the animal in cloth to induce a fever. Pasteur also knew that some animals got well on their own when left untreated. Pasteur tested the effectiveness of the local veterinarian's methods by injecting four cattle with anthrax bacteria. He then directed the veterinarian to perform his procedures on two cattle. The other two cattle were left alone. One cow from each group died and the other one in each group survived. Pasteur dismissed the veterinarian's procedure as ineffective, but he also considered this to be a poor test. Why would he consider this to be a poor test?

Which statement about living organisms is false?

Which of the following might plausibly be said by a scientist?

Which of the following statements regarding the scientific method are true? Check all that apply.

Which classification category includes the most species?

What is the correct format for the binomial name of a manatee?

When comparing energy and chemicals in an ecosystem

Which statement regarding science and technology is true?

Using technology in the field of agriculture which has enabled farmers to feed a growing human population is an example of a beneficial use of technology.

The three major domains of life are

Corn belongs to the kingdom

The smallest structural and functional unit in a multicellular organism is a(n)

Which statement about ecosystems is true?

The body temperature in humans is maintained around 37°C. Which characteristic of life does this information represent?

You have discovered a previously unknown organism. It is multicellular with a filamentous form, and it absorbs food from its environment. Upon microscopic examination, you see that the cells have nuclei. How would you classify this organism?

A multicellular, photosynthetic organism with complex, specialized cells and tissues would most likely be assigned to

An unmanned spacecraft has been sent to another planet to detect new life forms. If the probe could only send back one image, which property or properties of life would be observable in the picture?

The most important factor that determines where major ecosystems are located on the globe is

The statement "plants grown from cross-pollinated seeds will grow taller and produce more fruit than plants grown from self-pollinated seeds" is an example of a scientific theory.