Introductory Biology Exam

Though scientists strive to be "purely objective", they:

A valid experiment:

Which of the following situations can be studied by using the scientific method?

Adaptations:

You are testing the effect of sugar on the freezing point of water. Your experimental setup is indicated below. Beaker: Solution (20 mLs per beaker): A 1% sugar B 5% sugar C 10% sugar D 1% salt You place the beakers in the freezer for one hour. You examine them and conclude that your experiment is invalid because:

Observations may:

Which of these characteristics of life takes the longest time?

An atom of magnesium has an atomic number of 12. How many electrons would be found in the third energy level?

Electrons:

The atomic number of oxygen is 8. Oxygen 16 and oxygen 18 are isotopes. They have:

When an atom with seven electrons in the outer shell picks up another one, the atom becomes:

The transfer of electrons between two atoms occurs in a(n)

The atomic # of an element is 10. This element would most likely:

The chemical processes in the living cell are collectively called:

Radioactive isotopes:

In science, a hypothesis that is not rejected after repeated tests is called:

Which of the following best describes the logic of the scientific process?

The epigenetic identical twin mice demonstrate how:

Inorganic compounds:

Which of the following statements is true for water?

The fact that water can maintain a constant temperature well is because it has a:

Which of the following is (are) due to the fact that H2O molecules hydrogen bond to each other in liquid water?

Because ice expands upon forming:

A pH of 10 is how many times as basic as a pH of 7?

A reaction of an acid and a base will produce water and:

In water, H2CO3 dissociates into H+ and HCO3-. This compound, H2CO3, is behaving as a(n):

Most life processes take place at a pH of:

Which is true about the pH scale?

Scientific facts cannot be disputed.

Carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur constitute less than 75% of the composition of living organisms.

The remains of organisms found in geologic formation are called fossils.

The Daddy water bugs story was used to illustrate how the sociocultural framework of scientists can limit their vision.

The power of human belief systems is such that even our immune system response can be modified by previous conditioning.

The bonds in methane (CH4) are ionic.

PET scans are used medically to see activity in the body after a person is given radioactive tracers.

Critical thinking involves examining the big picture and questioning methodology, results, and conclusions.

Heavy hydrogen, an isotope of hydrogen, differs from the regular atom in its charge.

Homologous structures look alike in different lineages but evolved independently.