that occurred in the evolutionary history of the species.
References
Check All That
Apply
Genes Section: 01.01
8.
Award: 10.00 points
Levels of biological organization IV
Which of the following pairs of words is matched correctly?
brain - organ
neuron - tissue
osteocyte - organelle
gene - atom
heart - organ system
The brain is an organ. Genes are molecules, osteocytes and neurons are cells and the heart is an
organ.
References
Multiple Choice Levels of biological
organization IV
Section: 01.01
9.
Award: 10.00 points
Adaptation
Many insects cannot see the color red, and as a result many insect-pollinated flowers are colors
other than red (e.g., purple and yellow). Flower color would be considered a(n)
method for maintaining homeostasis.
way to maintain metabolism.
adaptation.
example of energy flow.
example of nutrient cycling.
Pollination is how flowering plants pass on their genes. Flower color attracts pollinators and
therefore flower color is an evolutionary adaptation that is important for successful plant
reproduction.
References
Multiple Choice Adaptation Section: 01.01
10.
Award: 10.00 points
Natural selection
Simon is an avid gardener who spends a lot of time caring for the plants in his garden. To minimize
damage from pests from his garden, Simon uses a pesticide spray. After a few years of using the
same pesticide spray, he notices that it has become less effective. This is most likely due to
evolution by natural selection.
using the spray incorrectly.
the plants in the garden evolving.
the plants maintaining homeostasis.
something else in the environment.
The pesticide that Simon is using is most likely less effective due to the insects evolving resistance.
During the time that Simon was using the pesticide, the insects that were better adapted to these
conditions had greater reproductive success than the other insects. Assuming the surviving insects
were able to pass on the traits that confer resistance to their offspring, the population would
become more and more resistant to the pesticide.
References
Multiple Choice Natural selection Section: 01.02
11.
Award: 10.00 points
Characteristics of life III
All the chemical reactions that occur in a cell are collectively called
mitosis.
photosynthesis.
cellular respiration.
meiosis.
metabolism.
Food provides nutrient molecules to living things. When cells use these molecules to make their
parts and products, they carry out a sequence of chemical reactions, which are collectively known
as the organisms metabolism.
References
Multiple Choice Characteristics of life
III
Section: 01.01
12.
Award: 10.00 points
Prokaryotic cells
Is the following statement true or false? The only single-celled organisms are prokaryotes, such
as archaeans and bacteria.
true, because prokaryotes are the simplest cell form
true, because all eukaryotes are multicellular
false, because some eukaryotes, including protista, are single-celled
false, because some prokaryotes are multicellular
false, because all single-celled organisms are prokaryotes
Prokaryotes are all unicellular, but eukaryotes can be either unicellular or multicellular.
References
Multiple Choice Prokaryotic cells Section: 01.02
13.
Award: 10.00 points
Evolution
The various species of honeycreepers have an assortment of different beak shapes, but all
honeycreeper species have a similar size and body shape. This is an example of
ascent with new traits.
descent with modification.
taxonomic differentiation.
fixed traits.
modification of adaptations.
Evolution or descent with modification explains how one species can give rise to several different
species.
References
Multiple Choice Evolution Section: 01.02
14.
Award: 10.00 points
Three domains of life
Based on the evolutionary tree of the three domains, which of the following statements is true?
All three domains have a common ancestor.
Domain Bacteria and domain Eukarya are more closely related to each other than to
domain Archaea.
The Eukarya have remained the same throughout evolutionary time.
All three domains are equally related to one another.