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Homework answers / question archive / American Military University - SCIN 130 Part 1: Text Material Question1)What is the term for an organisms' ability to maintain constant internal conditions even when environmental conditions change? • A
American Military University - SCIN 130
Part 1: Text Material
Question1)What is the term for an organisms' ability to maintain constant internal conditions even when environmental conditions change?
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A. Equilibrium
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B. Equality
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C. Centered
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D. Homeostasis
Question 2
What is the first step in the scientific process?
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A. Hypothesis formation
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B. Data collection
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C. Observation
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D. Prediction
Question 3
Which is a single cell that lacks membrane bound organelles?
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A. Ribosomes
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B. Eukaryote
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C. Prokaryote
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D. Nucleolus
Question 4
Which type of science seeks to use science to solver real-world problems?
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A. basic
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B. applied
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C. natural
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D. empirical
Question 5
What process do scientists use as a way to perform research with defined steps that include experiments and careful observation?
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A. The right hypothesis
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B. A journal article
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C. The scientific method
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D. A clean lab bench
Question 6
What is the correct order from highest level to lowest level of taxonomic hierarchy?
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A. Genus, species, order, family
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B. Family, order, genus, species
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C. Order, family, genus, species
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D. Species, genus, family, order
Question 7
What is the main reason offspring will belong to the same species as the parents?
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A. They share the same genes.
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B. They share the same food.
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C. They share the same habitat.
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D. They share the same environment.
Question 8
Which type of science seeks to expand knowledge regardless of the short-term application of that knowledge?
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A. natural
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B. applied
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C. empirical
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D. basic
Question 9
What is an example of a response to stimuli in a living organism?
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A. A bacteria taking up nutrients from the soil
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B. A bear hibernating in the winter
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C. A plant bending towards the sun
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D. A fungi crawling away from a person
Question 10
What is an example of gene flow?
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A. In a population flowers that carry purple alleles are pollinated more often.
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B. Purple alleles result in allopatric speciation.
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C. Purple alleles are introduced into population by migration.
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D. A new purple allele arises in the population by mutation.
Question 11
Which of the following is accurate about mutation?
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A. Mutation alone is a strong mechanism of evolution.
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B. Mutation is the ultimate source of novel variation.
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C. Mutation results from bottleneck events.
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D. Mutation causes gene flow between populations.
Question 12
When does allopatric speciation occur?
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A. when individual migrate from one population to another
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B. when mutation increases the number of offspring.
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C. when a parent species becomes two species in one location.
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D. when populations are geographically separated and diverge.
Question 13
How did Darwin define evolution?
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A. change in allele frequency over time
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B. descent with modification
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C. adaptation to climate
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D. inheritance of acquired characteristics
Question 14
What is the change in a population’s allele frequency from one generation to the next that is due to chance known as?
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A. mutation
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B. natural selection
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C. migration
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D. genetic drift
Question 15
Which statement best describes analogous structures?
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A. evolve from a common ancestor
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B. cause increased mutation
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C. result from divergent evolution
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D. occur in unrelated species
Question 16
Which of the following is correct?
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A. Evolution is a just a theory that has little evidence to support it
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B. One important fact of evolution is that organisms evolve on purpose.
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C. Since evolution occurred in the past it cannot be studied scientifically.
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D. Evolution is widely accepted based on scientific data and evidence.
Question 17
A classic scientific study showed that crayfish on one side of the isthmus of Panama were more closely related to other species on the other side of the isthmus than to each other. The most likely explanation for this result is:
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A. dispersal
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B. vicariance
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C. gene flow
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D. mutation
Question 18
A population of pocket mice has two coat colors: black and brown. There are more black mice on
lava rocks where there are hawk predators. This is an example of:
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A. Natural selection
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B. Macroevolution
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C. Genetic drift
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D. Mutation
Question 19
Malaria acts as a natural selective agent so that people with what disorder have a survival advantage?
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A. Hemophilia
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B. Fragile X Syndrome
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C. Sickle Cell Anemia
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D. Thalassemia
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E. Down Syndrome
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F. Cystic Fibrosis
Question 20
It is important to understand issues of the modern world but separating what in current literature?
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A. Television shows and magic
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B. Valid science and pseudoscience
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C. News articles and social media
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D. Interesting articles and boring articles
Question 21
Currently, scientists classify all living organisms into three domains of life EXCEPT which?
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A. Mammalia
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B. Bacteria
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C. Eukarya
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D. Archaea
Question 22
Which scientist is responsible for determining that matter is neither created nor destroyed?
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A. Louis Agassiz
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B. Christian Doppler
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C. Antoine Lavoisier
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D. Charles Darwin
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E. Gregor Mendel
Question 23
Which of the following should be avoided in the lab environment?
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A. Using caution and common sense
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B. Wearing clothes that cover shoulders and legs
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C. Washing hands after doing lab work
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D. Using designated disposal areas for sharp tools
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E. Drinking water or eating food
Question 24
Which of the following should be avoided in the lab environment?
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A. Referring to the MSDS
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B. Using a fume hood
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C. Pipetting by mouth
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D. Wearing closed-in shoes
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E. Using appropriate waste containers
Question 25
As mentioned in the lab, in addition to poaching, why have elephant populations been decreasing over the last few years?
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A. Water Issues
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B. Habitat Loss
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C. Food Shortage
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D. Climate Change
Question 26
Which survey method for elephant counts was an indirect type?
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A. Dung transects
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B. Individual registration
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C. Species range
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D. Individual range
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E. Aerial survey
Question 27
Which of the following about the importance of elephants is NOT true?
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A. They knock down trees, maintaining grassland space.
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B. They provide watering holes for other species.
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C. They disperse seeds up to 57 km from where they were ingested.
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D. They allow for other trees to grow by opening up the tree canopy.
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E. They trample every bush, clearing the way for small rodents.
Question 28
Which survey method for elephant counts was a sample or direct type?
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A. Aerial survey
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B. Dung transects
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C. Species range
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D. Individual range
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E. Individual registration
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F. Acoustic survey
Question 29
Why should we study elephants?
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A. They are invading the local urban areas.
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B. They are a keystone species.
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C. They are big, but not important.
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D. They drink so much water, we don’t want to run out.
Question 30
In a few sentences, what was the overall purpose of the lab for this week? You should include 1-2 sentences on the methods and then the overall reason.