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?   •   A

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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.