6.10 Module 6 Regular Exam
Score:
36 of 42 points
Answer Key
Question 1 (Worth 2 points)
(06.03 MC)
In what way are slime molds similar to kelp?
They are both aquatic protists.
They are both autotrophic protists.
They are both colonial protists.
They are both heterotrophic protists.
Points earned on this question: 0
Question 2 (Worth 2 points)
(06.01 MC)
In which of the following ways have scientists been able to improve the classification system
first devised by Linnaeus in the early 1700s?
Developing genetic engineering techniques has allowed us to add entire kingdoms to the
original classification system.
Knowing the complete sequence of an organism's DNA allows us to name it more
accurately.
Improved tracking and mapping technology has provided better information on the
geographical ranges of individual species.
Advances in gene and protein sequencing have led to a better understanding of the
evolutionary relationships between species.
Points earned on this question: 2
Question 3 (Worth 2 points)
(06.01 MC)
When the Linnaean system of classification was first developed in the early 1700s, it had three
kingdoms. By the mid-1900s, it had five kingdoms. Which of the following best explains why
the number of kingdoms increased?
The original three kingdoms soon filled up with newly discovered species which created a
need for additional kingdoms.
New kingdoms were needed that reflected our growing knowledge of the differences
between living organisms.
Many new animal species were discovered during that time which meant the animal
kingdom needed to be divided.
More kingdoms were needed once non-living things, such as viruses, were included in the
classification system.
Points earned on this question: 2
Question 4 (Worth 2 points)
(06.06 MC)
Which of the following statements correctly compares the functions of a plant's roots and stem?
The stem contains a high percentage of cells that provide structural support, unlike the roots.
The stem is the first part of the plant to emerge from a seed, followed by the roots.
The roots contain ground tissue that stores water and glucose, unlike the stem.
The roots contain stomata that allow for gas exchange, while stems do not.
Points earned on this question: 2
Question 5 (Worth 2 points)
(06.01 HC)
Based on the concept of phylogeny, an organism that was ancestral to both the Bacteria and
Eukaryota domains would exhibit which of the following characteristics?
It would have mitochondria and other membrane-bound organelles.
It would have DNA.
It would have a nucleus.
It would have cell walls as well as cell membranes.
Points earned on this question: 2
Question 6 (Worth 2 points)
(06.04 MC)
Which of the following best explains a characteristic that differentiates Fungi from Plants?
Fungi are made up of cells that do not have cell walls, while Plant cells have walls
containing cellulose.
Fungi are unicellular and form colonies, while Plants are multicellular with specialized
tissues.
Fungi are decomposers that break down dead plant and animal matter, while Plants are
autotrophs.
Fungi are able to reproduce either sexually or asexually, while Plants reproduce only
sexually.
Points earned on this question: 0
Question 7 (Worth 2 points)
(06.01 MC)
Which best explains why viruses are not classified by Linnaean taxonomy?
Viruses do not contain any genetic information or a cell wall.
Viruses share many characteristics with several of the kingdoms.
Viruses cannot reproduce outside a host cell and are therefore nonliving.
Viruses lack a protein coat and any metabolic activity.
Points earned on this question: 2
Question 8 (Worth 2 points)
(06.02 MC)
Which of the following correctly summarizes why Bacteria and Archaea are not in the same
kingdom?
Their cell walls are created from different substances and Bacteria has an RNA polymerase
that Archaea lacks.
Only Bacteria are both prokaryotic and single-celled organisms
Only Archaea have cell membranes made from straight chains of peptidoglycan.
Archaea are believed to be the ancestor of Bacteria and therefore cannot be in the same
kingdom as Bacteria.
Points earned on this question: 2
Question 9 (Worth 2 points)
(06.03 MC)
How are the autotrophic protists different from the heterotrophic protists?
The autotrophic protists can photosynthesize, while the heterotrophic protists cannot.
The heterotrophic protists can all move around, while the autotrophic protists are immobile.
The heterotrophic protists reproduce by spores, while the autotrophic protists form eggs.
The autotrophic protists eat by endocytosis, while the heterotrophic protists use pinocytosis.
Points earned on this question: 2
Question 10 (Worth 2 points)
(06.07 MC)
Which of the following best compares the roles of the reproductive structures found in an
angiosperm?
The male stamens hold the pollen, the female pistil holds the ovule, and the petals attract
pollinators.
The female anthers holds the eggs, the male anthers contain pollen, and the petals provide
nutrients for the growing embryo.
The male anthers hold the pollen tube, the female ovule holds the egg, and the petals grow
around the seed to form a fruit.
The female stamens hold the ovules, the male pistil forms the pollen tube, and the petals
provide nectar to pollinators.
Points earned on this question: 2
Question 11 (Worth 2 points)
(06.08 MC)
Which of the following best describes a feature that distinguishes animals from fungi?
Animals have cell walls containing cellulose and proteins, while fungi have cell walls
containing chitin.
Animals are heterotrophs, while most fungi are chemoautotrophs.
Animals reproduce sexually or asexually, while fungi reproduce by binary fission or
budding.
Animals digest their food inside their bodies, while fungi digest their food externally.
Points earned on this question: 2
Question 12 (Worth 2 points)
(06.02 HC)
The processes of transformation and transduction are important to which kingdom and why?
Protista: Both processes are steps in the process of putting the Protista into the endospore
state which provides protection from harsh conditions.
Bacteria: Both processes provide the Bacteria with new genes that might provide new ways
of dealing with environmental changes.
Viruses: Both processes would help a virus strain produce flagella to move away from
difficult environmental conditions.
Fungi: Both processes would allow Fungi to form physical connections to other Bacteria so
they could trade genes useful for survival.
Points earned on this question: 0
Question 13 (Worth 2 points)
(06.06 LC)
Which of the following plant organs contains the highest concentration of chloroplasts
responsible for photosynthesis?
Flowers
Roots
Stems
Leaves
Points earned on this question: 2
Question 14 (Worth 2 points)
(06.08 MC) <object:standard:sc.912.l.15.6 >
Which of the following best explains ways in which fish and mammals
differ?</object:standard:sc.912.l.15.6 >
Fish are invertebrates and have scales and paired fins, while mammals are vertebrates and
have fur or hair.
Fish are ectothermic and lay eggs to reproduce, while mammals are endothermic and give
live birth to offspring.
Fish are endothermic and have gills, while mammals are ectothermic and have lungs.
Fish have streamlined bodies and three-chambered hearts, while mammals are bipedal and
have four-chambered hearts.
Points earned on this question: 2
Question 15 (Worth 2 points)
(06.05 LC)
Which division of plants in the plant kingdom has species that reproduce sexually by producing
cones?
Flowering vascular plants
Seedless vascular plants
Nonflowering vascular plants
Nonvascular plants
Points earned on this question: 2
Question 16 (Worth 2 points)
(06.04 MC)
Which of the following accurately compares the stolon and mycelium in fungi?
The stolon transports water and nutrients, while the mycelium releases spores.
The stolon contains sporangia, while the mycelium stores water and nutrients.
The stolons of two fungi connect to form gametangia, while the mycelium is made up of
hyphae.
The stolon releases enzymes to break down food, while the mycelium provides structure and
support.
Points earned on this question: 2
Question 17 (Worth 2 points)
(06.02 MC)
A pathogenic strain of bacteria has become resistant to an antibiotic that once could kill it. What
has happened to these bacteria to make this happen?
The bacterial cells learned to remove the receptors on their cell surfaces, making it
impossible for the antibiotic to attack them.
Most of the bacteria make changes to their DNA to protect themselves, making themselves
immune to future attacks.
Some of the bacterial cells were able to produce toxins against the antibiotics, making them
more likely to survive.
Only the few bacteria that were immune to the antibiotic survived and reproduced, making
all their offspring immune to it as well.
Points earned on this question: 2
Question 18 (Worth 2 points)
(06.06 MC) <object:standard:la.910.2.2.3 >
Which of the following does this chart represent?
</object:standard:la.910.2.2.3 >
Promotes Growth
Abscisic acid
Auxins
Controls Tropisms
X
Controls Budding
Flowers
X
Cytokinins
Ethylene
Gibberellins
X
X
X
X
The completed plant tissues and the cells that initiate their growth
The relationship between different types of plant hormones and their functions
The differences between plant structures and the hormones they produce
The types of plant cells and their functions within the plant
Points earned on this question: 2
Question 19 (Worth 2 points)
(06.08 LC) <object:standard:sc.912.l.15.6 >
Which of the following organisms is an acoelomate?</object:standard:sc.912.l.15.6 >
Earthworm
Insect
Flatworm
Clam
Points earned on this question: 2
Question 20 (Worth 2 points)
(06.01 LC)
Recently it has been proposed that three domains be added to our hierarchy of classification of
living things. When these domains are added, where do they fit in the hierarchy?
After the class level and before the family level
Below the kingdom level
Above the kingdom level
Between the order and phylum levels
Points earned on this question: 2
Question 21 (Worth 2 points)
(06.07 HC) <object:standard:sc.912.l.14.7 >
The sporophyte of an unknown plant species grows as a separate plant than the gametophyte.
The plant produces both female and flagellated male gametes from the same gametophyte, and it
releases spores into the environment. Which of the following is the best conclusion about the life
cycle of this plant?</object:standard:sc.912.l.14.7 >
The plant is a gymnosperm, and the gametophyte is its dominant phase.
The plant is an angiosperm, and the gametophyte is its dominant phase.
The plant is a moss, and the sporophyte is its dominant phase.
The plant is a fern, and sporophyte is its dominant phase.
Points earned on this question: 2