WorksheetsFX Bio 20 Unit B Ecosystems and Population Change
Total questions: 36
Worksheet time: 48mins
selective pressure
Why could the same species of moth be two different colors?
Their color was based on their DNA. Sometimes a mutation would cause the moth to be born with a different color.
Their color was caused by the environment. The soot from the factories would fuse with the moth's skin.
Bacteria inside the moth's stomach would sometimes give the moth stomach the ability of the moth to have "active camouflouge." This allowed the moths to change their color at will.
If scientists find fossils of a type of mosquito on the bottom layer and find fossils of beetles towards the top layer, what can scientists infer?
Mosquitos ate the beetles
Mosquitos are older fossils than beetles
Beetles are older fossils than mosquitos
Both mosquitos and Beetles must have lived at the same time.
How do scientists use embryology to support the theory of evolution?
Embryos of many species have a lot of similar characteristics when they are first forming showing different creatures must have a common ancestor
Embryos of many species have very little in common until they start developing for long periods of time
Features like gills and tails prove that all animals are really just fish
Color in peppered moths is controlled by genes. A light-colored variety and a dark colored variety of a peppered moth species exist in nature. The moths often rest on tree trunks, and several different species of birds are predators of this moth. Before industrialization in England, the light-colored variety was much more abundant than the dark-colored variety and evidence indicates that many tree trunks at that time were covered with light-colored lichens. Later, industrialization developed and brought pollution which killed the lichens leaving the tree trunks covered with dark-colored soot. The results of a study made in England are shown.
Which conclusion can best be drawn from the information given?
The trait for dark coloration better suits the peppered moth for survival in non-polluted environments.
The trait for light coloration better suits the peppered moth for survival in polluted environments.
The variation of color in the peppered moth has no influence on survival of the moth.
A given characteristic may be a favorable adaptation in one environment, but not in another environment.
The diagram shows taxonomic groups and a major distinguishing characteristic of all but two of them. Which characteristics will be used to complete the chart?
nonphotosynthetic - photosynthetic
autotrophic - heterotrophic
no nucleus - nucleus
motile - nonmotile
All of the elephants that live in this area at the same time make up a _____________________.
ecosystem
community
population
biosphere
I have cell walls made of cellulose
I am an autotroph
I am multicellular
What kingdom am I?
Plantae
Animalia
Eubacteria
Unicorn
I can be either a heterotroph or an autotroph-
I can be either multicellular or unicellular-
I can have cell walls or not-
The only thing for sure about me is that I have a nucleus in my cells...
I am Kingdom ____________ .
Plantae
Protista
Animalia
Fungi
I am prokaryotic
I am found in extreme ecosystems
What kingdom do I belong to?
3. Some characteristics of a recently discovered organism are listed in the following table. Based on the given characteristics, this organism would be classified in which kingdom?
A. eubacteria
B. fungi
C. plantae
D. protista
Cytochrome c is a protein made up of amino acids. All proteins get their instructions from DNA. According to this data which organism listed below would be most distantly related to humans?
chimpanzees
moth
rattlesnakes
snails
arachnids and insects?
The Hulk and Thanos are fighting over the only 6 small stones in existence, and their survival depends on the stones. The stones are an example of...
a biotic limiting factor
an abiotic limiting factor
a niche
a community
What is a niche?
the ability to survive within a certain range of environmental conditions
the role of an organism and how it obtains its needs for survival and reproduction
the feeding interactions of different organisms
all of the biotic and abiotic factors in an ecosystem
A collection of living organisms that belong to different populations but all live in the same area and interact with one another is a...
Population
Ecosystem
Community
Ecosphere
Which of the following is a biotic factor that would affect the numbers of a population?
Soil
Predators
Rainfall
Sunlight
Which is true of prokaryotic and eukaryotic cells?
Prokaryotic cells are larger than eukaryotic cells.
Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.
Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.
Eukaryotic cells are simpler than prokaryotic cells.
Why do scientists use sampling techniques to gather population data rather than counting everything?
scientists are lazy
sampling is more efficient and achievable
sampling is more accurate
scientists prefer estimations
sampling is cheaper
Lyell
Einstein
What is the value of a transitional fossil?
Transitional forms show the evolutionary steps between species.
Transitional forms are evidence of punctuated equilibrium.
reproductive isolation
Two species of squirrels are closely related, but they mate at different times during the year. This is an example of
Geographic isolation
reproductive isolation
selective pressure
selective advantage
When evolution occurs gradually and slowly over long periods of time
convergent evolution
divergent evolution
Punctuated Equilibrium
Gradualism
divergent evolution
convergent evolution
What type of population would be best to ESTIMATE using a quadrat?
Evolution occurring gradually and slowly over long periods of time
Homeostasis
Stasis
Punctuated Equilibrium
Gradualism
Evolution occurring quickly due to catastrophic events
Homeostasis
Gradualism
Statsis
Punctuated Equilibrim
