Quiz Ch. IV

Results Reporter
Out of 15 questions, you answered 15 correctly, for a final grade of 100%.
15 correct (100%)

0 incorrect (0%)

0 unanswered (0%)

Your Results:
The correct answer for each question is indicated by a .



1
CORRECT

An important function of lipids for marine birds is which?



A)
carrying oxygen in the blood



B)
structural support



C)
keeping feathers dry



D)
speeding up metabolic processes.






2
CORRECT

Like complex carbohydrates, nucleic acids are large molecules, but unlike carbohydrates, they contain which of these?



A)
carbon



B)
hydrogen



C)
oxygen



D)
nitrogen






3
CORRECT

The direct function of genes is to



A)
code for a trait, such as blue eyes.



B)
allow natural selection to proceed.



C)
specify the order of amino acids in one protein.



D)
make perfect copies of each strand of DNA.






4
CORRECT

In photosynthesis,



A)
carbon dioxide and water are used to produce glucose.



B)
glucose is broken down into carbon dioxide and water.



C)
energy stored in organic matter is transferred to ATP.



D)
carbon is converted to an inorganic form.






5
CORRECT

In the ocean, the most important nutrient is



A)
nitrate.



B)
phosphate.



C)
silicate.



D)
iron.






6
CORRECT

Unlike animal cells, plant cells have which of these?



A)
flagella



B)
a nucleus



C)
mitochondria



D)
a cell wall






7
CORRECT

A salmon is an osmoregulator. As it moves out of fresh water into seawater, what happens?



A)
Water tends to move out of its tissues.



B)
Water tends to move into its tissues.



C)
The fish must excrete more water



D)
The fish must retain more salt.






8
CORRECT

A biologist suspects that a polychaete worm uses active transport to remove a pollutant from its tissues. Evidence for this idea would be which of the following?



A)
an increased concentration of the pollutant at the exits of its excretory organs as opposed to inside its tissues



B)
presence of excretory organs



C)
a greater concentration of the pollutant in the sediment outside the worm than inside of it



D)
survival of the worm in polluted mud






9
CORRECT

Tunas are considered to be poikilotherms because



A)
their internal temperature remains the same despite external changes.



B)
they cannot retain heat generated by their muscles.



C)
they do not have blubber.



D)
their internal temperature varies with the temperature of the water outside.






10
CORRECT

To be a large animal but have a high surface to volume ratio



A)
is impossible.



B)
can happen if the animal is nearly flat.



C)
can happen in a spherical animal.



D)
can happen if the animal can regulate its body heat.






11
CORRECT

In sexual, but not asexual, reproduction



A)
buds can break off.



B)
meiosis occurs.



C)
cell division occurs



D)
offspring are genetically identical to the parent.






12
CORRECT

Strictly speaking, evolution refers to



A)
genetic changes in populations.



B)
survival of the best-adapted individual.



C)
the origin of life.



D)
the establishment of new species.






13
CORRECT

In a museum's catalog of specimens, a biologist reads "Echinoidea: Echinidae: Echinus esculentus". She can assume from the label that



A)
someone made a mistake. Only two names should be used.



B)
someone made a mistake. The first three names are identical.



C)
Echinoidea is a class and Echinidae is a family.



D)
The first two names should be underlined or in italics.






14
CORRECT

The Archaea are now considered separate from Bacteria because



A)
there are differences in their RNA.



B)
they have more than one cell.



C)
they have mitochondria.



D)
they have no metabolism.






15
CORRECT

A zygote



A)
forms by meiosis.



B)
is diploid.



C)
is haploid.



D)
forms after cell division.