CSU Life 103 Final Exam
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94 Terms
The correct sequence, from the most to the least inclusive (having the most taxa to having the least taxa), of the taxonomic levels listed here is
domain, kingdom, phylum, class, order, family, genus, and species.
3 multiple choice options
The relationship among plants, animals and fungi is best described by
animals and fungi are sister taxa
3 multiple choice options
Which of these is the most common compound in the cell walls of gram-positive bacteria?
peptidoglycan
3 multiple choice options
The scientific discipline that is most interested in studying groups of interacting populations from multiple species is:
Community Ecology
3 multiple choice options
Which of the following statements is(are) NOT true?
Disperal requires humans to facilitate the movement of organisms
3 multiple choice options
Has an outer membrane that with the inner membrane sandwiches the cell wall
Gram Negative Bacteria
Has an alternation of generations lifecycle
Bryophyte
Is a flagellated Eukaryote
Euglenozoan
Your new roommate is highly germophobic and not terribly well-read in biology. She tells you that you need to clean AND dry the kitchen counter four times a day because the bacteria use their fimbriae to move through the water on the surface and contaminate any food that touches the counter. You point out to your new roommate that:
bacterial fimbriae, or attachment pili, do not help the bacteria move but to stay put
3 multiple choice options
In a hypothetical situation, the genes for sex pilus construction and for tetracycline resistance are located together on the same plasmid within a particular bacterium. If this bacterium readily performs conjugation involving a copy of this plasmid, then the result should be
the rapid spread of tetracycline resistance to other bacteria in that habitat.
3 multiple choice options
To reconstruct a phylogeny we can use information from which of the following?
All of the above
3 multiple choice options
A branch point on a phylogenetic tree
separates sister taxa if the branch point separates only two nodes.
3 multiple choice options
Bees and the flowers they pollenate have what kind of relationship?
Mutualism
3 multiple choice options
A mutualism of bacteria and humans might include:
Bacteria living in the digestive tract that receive nutrients from the food ingested and convert some of the material into nutrients that the human needs.
3 multiple choice options
Plastid formation in Archaeplastida is due to
endosymbiosis of a cyanobacterium by a eukaryote
3 multiple choice options
Which is true about Malaria?
It is caused by a eukaryote that requires a mosquito and a human as hosts.
3 multiple choice options
The fruiting body of a cellular slime mold is composed of
A individual amoeba cells that are generally but not necessarily genetically related.
3 multiple choice options
Which of the following permits some species of bacteria to respond to taxes (plural of taxis)?
flagellum
3 multiple choice options
The liverworts, hornworts and mosses all share in common
alternation of generations
3 multiple choice options
Has the ability to move but does not have flagella as a mature organism
Plasmodial slime mold
Has phycoerythrin in addition to chlorophyll
Red algae
Is an important factor in the climate impact of hydroelectric power
Methanogens
Bacteria can reproduce by
Binary fission
3 multiple choice options
Bacterial transduction involves:
bacteriophages
3 multiple choice options
Eukaryotic nutrition involves
all of the above.
3 multiple choice options
A halophile is adapted to live:
In an environment with high salt content
3 multiple choice options
Rhizaria have a hard shell-like structure called __ which is perforated to allow for the organism to use __
Test, pseudopodia
3 multiple choice options
he process/structure found at point 2 is BEST described as:
Meiosis
3 multiple choice options
The phase of the lifecycle labeled 4 is best described by:
Diploid
3 multiple choice options
The process found at point 1 is BEST described as:
Fertilization
3 multiple choice options
The organism in the figure is
Isomorphic
3 multiple choice options
Which of the following is NOT part of double fertilization?
Sperm fertilization of the integument
3 multiple choice options
A spine is to leaf as a thorn is to
Stem
3 multiple choice options
In gymnosperms the megaspore is:
Haploid cell that grows into the female gametophyte
3 multiple choice options
The food reserves in a gymnosperm seed are
Haploid and come from the female gametophyte
3 multiple choice options
Which of the following is NOT a derived trait of seed plants?
Alternation of generations
3 multiple choice options
A Drupe is:
A fruit with a hard endocarp and fleshy mesocarp and fleshy exocarp
3 multiple choice options
What are the adaptive advantages of Leeds and pollen
No need for water in the transfer of pollen to the ovary and The offspring can be transported long distances
3 multiple choice options
Which is true of Magnoliids?
They have two cotyledons
3 multiple choice options
Contains the microsporangium
Stamen
Leaf that can act like a petal
Bract
Leaf that provides structural support
Tendril
A complete flower requires this, but a perfect flower does not
Sepal
Which of the following are not structurally supportive roots?
Pneumatophores
3 multiple choice options
In Colorado, a tree "ring" would result from:
the cambium going dormant in the winter with a new set of early wood cells following late wood cel
3 multiple choice options
Which of the following are eudicots?
None of the above
3 multiple choice options
Which of the following flower characteristics are evolved based on the pollinator?
All of the above are influenced by the pollinator
3 multiple choice options
Which of the following best describes how a plant cell takes up sucrose (a neutral solute) from the surrounding environment?
membrane potential exists such that sucrose is cotransported with H+ down a steep proton gradient
3 multiple choice options
Hormonal regulation of seed germination involves water inhibiting __ and activating __
Abscisic Acid and Gibberellins
3 multiple choice options
Adhesion and cohesion function via what mechanism?
hydrogen bonds
3 multiple choice options
Pollen grains
contain the gametophyte
3 multiple choice options
You observe a small plant that is growing in your garden. You pull this weed and note that it has a fibrous root system and the leaves have parallel veins. You deduce that this plant is most likely a:
Monocot
3 multiple choice options
A small worm is eating the root hairs off your pansy (a eudicot). If this continues it will likely result in:
The plant wilting
3 multiple choice options
Which of the following is NOT true about translocation of the phloem sap?
all of the above are true
3 multiple choice options
Darwin and Darwin explored the process by which a coleoptile grows toward the direction of light. Which of the following statements is true about the process?
Cells on the coleoptile that are away from the light source elongate
3 multiple choice options
The collenchyma is BEST defined as:
cells with lignin in their cell walls that are found in young plants
3 multiple choice options
A sieve tube cell can be characterized as a dependent to the companion cell because:
Companion cells retain nuclei, sieve cells do not
3 multiple choice options
A plant cell with a water potential of -0.8 Mpa is placed in a solution with a water potential of -0.3 Mpa.
The cell will become turgid
3 multiple choice options
Apical Dominance means
Axillary buds are dormant while apical buds continue to grow
3 multiple choice options
he epigeal cotyledon is?
The first leaf (or leaves) that grow from the germinating seedling and appear above ground, thus conduct photosynthesis
3 multiple choice options
The __ is the route that water and nutrients must take to pass the Casparian strip and enter the xylem.
symplastic route
3 multiple choice options
Signal transduction in plant cells is facilitated by
Second messengers or relay proteins
3 multiple choice options
In the above diagram, assuming it is an angiosperm seed, the ploidy of each part (in order, 1, 2, and 3) is:
2n, 3n, 2n
3 multiple choice options
Using the phylogeny at the back of the exam, we can reasonably conclude that organisms in the clade Loricifera have which of the following traits?
Molt to increase size
3 multiple choice options
Using the phylogeny at the back of the exam, the sister taxon of Rotifera is?
Micrognathozoa
3 multiple choice options
Using the phylogeny at the back of the exam, which of the following is not an animal?
Choanoflagellates
3 multiple choice options
The two morphological forms of Cnidaria are
Polyps and Medusae
3 multiple choice options
Almost all the major animal body plans seen today appeared in the fossil record over 500 million years ago at the beginning of the
Cambrian period
3 multiple choice options
During the development of a Protostome:
The cleavage is spiral
3 multiple choice options
An adult animal that possesses bilateral symmetry is most certainly also
Triploblastic
3 multiple choice options
Octopuses belong to which set of clades?
Protostomes, mollusca, cephalopoda
3 multiple choice options
Flatworms and Cnidaria have in common
A digestive cavity with only one opening
3 multiple choice options
Arthropods
Have a cuticle made from chitin
3 multiple choice options
Which phylum is characterized by animals that have a segmented body?
Arthropoda
3 multiple choice options
Which organism is a member of Echinodermata?
Sea star
3 multiple choice options
Which of the following taxa are in the clade, Gnathostomes?
Amphibia (frogs and salamanders)
3 multiple choice options
Which of the following is true of Echinodermata?
They are Deuterostomes
3 multiple choice options
In your kitchen, you see an organism with the following: Antennae, segments, two pairs of legs per segment and have modified appendages as mouth parts. You know
You are safe, as it is not venomous
3 multiple choice options
Fungi can reproduce by
Sexual reproduction and Asexual reproduction
3 multiple choice options
The ventral and dorsal sides are separated by the:
Frontal Plane AP
3 multiple choice options
Hippopotami (in Mammalia) and crocodiles (in Reptilia) both have eyes positioned on the tops of their heads, as both spend a large part of their lives in water. The best explanation for this pattern is:
Convergent evolution
3 multiple choice options
Which of the following is NOT connective tissue?
All of the above are connective tissue
3 multiple choice options
Primates include which of the following?
Humans
3 multiple choice options
The derived characters of chordates.include which of the following?
All of the above are derived characters of chordates
3 multiple choice options
Thermoregulation can NOT be accomplished by:
Warming by evaporation
3 multiple choice options
In very cold climates, there is a trend toward larger organisms.
Cold temperatures cause small endotherms to expend relatively more energy for thermoregulation than larger endotherms
3 multiple choice options
Which is true of birds?
Birds are reptiles
3 multiple choice options
Monotremes have:
Bilateral Symmetry
3 multiple choice options
A weight lifter injures herself by attempting to lift too much weight. The muscle tissue damage is
in the skeletal muscle
3 multiple choice options
In most fungi, karyogamy does not immediately follow plasmogamy (fertilization), which consequently
Results in heterokaryotic or dikaryotic cells
3 multiple choice options
The neuron consists of three parts. They are:
Axon, Dendrites, Cell Body
3 multiple choice options
Which of the following correctly describes cavities of a vertebrate?
Ventral cavity is divided into the thoracic and abdominopelvic cavities
3 multiple choice options
The difference between endocrine signaling and nervous signaling is
the endocrine signal is sent throughout the body and all cells with the correct receptors receive the signal while the nerve signal transmits information between specific locations
3 multiple choice options
Which of the following statements is correct?
Homeostasis can adjust to changes in the environment by acclimization
3 multiple choice options