A+ Answers

Question

If one group is given some medicine that may cure a disease and the other group is given a sugar pill, the group who got the medicine is the:
hypothetical group.
scientific group.
control group.
experimental group.
Question

Which of the following is NOT true of cell membranes?
They are composed of four carbohydrate layers.
They contain protein molecules.
They regulate movement of some substances into and out of the cell.
They contain phospholipids.
Question

Aerobic cellular respiration requires the use of:
N2.
O2.
H2.
H2O.
_ describes how a cell makes a protein from the protein coding sequence of a gene.
Transcription
Gene expression
Translation
Gene phrasing
Question

A gene that can be masked by another gene is called:
a pleiotropy.
dominant.
incompletely dominant.
recessive.
Question

Hybrid plants are produced by:
cloning.
asexual reproduction.
vegetative reproduction.
sexual reproduction.
Question

Many kinds of disease-causing bacteria are resistant to the standard antibiotics that we use to control them. This is because:
when bacteria are exposed to antibiotics, they mutate.
there is genetic variety within the species and those that already have genes for resistance are the ones that reproduce.
new species of bacteria have evolved that are resistant to antibiotics.
when the size of the population of a species of bacterium is reduced, genetic variety decreases.
Question

A food chain always begins with:
sympathetic decomposers.
photosynthetic autotrophs.
pathetic instructors.
heterotrophic consumers.
Question

Most microorganisms reproduce:
sexually.
by parthenogenesis.
asexually.
by meiosis.

The normal flow of blood would be:
heart ? capillaries ? arteries ? veins ? heart.
heart ? arteries ? capillaries ? veins ? heart.
heart ? veins ? capillaries ? arteries ? heart.
heart ? veins ? arteries ? capillaries ? heart.
Question
In terms of his career, Ryan's communication skills ________.
A) will neither help him find a job nor help him keep it
B) won't make any difference in his salary potential
C) will be perceived as important by his employers, but they cannot be translated into savings for his company
D) will make him a valuable employee
Question

Which of the following is an example of unsuccessful communication?
A) ordering an item online and deciding, after it arrives, that you don't like it
B) asking a friend for advice and then trying to apply it to your problem
C) receiving instructions on how to put something together and then assembling the item
D) making an urgent request on a colleague's voice mail and getting no reply for a week