2+3
Which of the following is an example of artificial selection?
A farmer only plants seeds from the largest plants in his crop.
biodiversity
Abiotic
common descent
All things come from a single ancestor
Natural selection is the only nonrandom cause of evolution. T/F
True
ecosystem
all the organisms living together in a particular place along with their non-living environments.
botic factors
the parts of an ecosystem that are living or that results from the activities of living things.
When humans play a role in the traits a population of animals have this is called
Artificial selection
descent with modification
Artificial selection
Why are some organisms less generically diverse
Isolation, low population
An organism many other organisims depend on is
Keystone organism
Agro-chemical companies created Golden Rice, a genetically modified food species of rice, to help fight "Blank" in developming countries"
Malnutrition
Natural Selection
Nature decides which traits to keep amd which traits to get rid off
What is least likely to be an example of a variation whitin a species?
Number of limbs
Individual
One single organism
Suppose a new animal is introduced into this desert ecosystem. The new animal has no natural predators. It eats the same plants the wild burros (the horse looking animal) do. Which parts of the ecosystem might be (directly or indirectly) affected by this change? Other animals, plants, flow of energy, cycling matter
Other animals, plants, flow of energy, cycling matter
Which of the following items can be found in an ecosystem? Plants, Animals, Water, Rocks
Plants, animals, water, rocks
Which of the following does NOT provide evidence of natural selection to explain the high percentage of elephants with tusks in the Gorongosa National Park before the Mozambique civil war?
Soldiers purposely bred elephants to have tusks so they could be sold to raise money for weapons.
Biodiversity is made of
Species diversity, ecosystm diversity, genetic diversity
Mongolian gerbils are prey for hawks. If a wildfire blackens the landscape how will the frequency of the a allele for black fur color change compared to the A allele for brown fur color?
The a allele for black fur color will increase compared to the A allele for brown fur color.
In order for natural selection to occur, certain conditions must be present in a population. Which of the following is NOT one of the necessary conditions for natural selection to occur?
The ability for an organism to adapt
The beaks of finches found on various Galapagos Islands varied based on
The available food supply
In the phrase "survival of the fittest", the term "Fittest" refers to:
The best adapted organism
Evolution
The change in inherited traits of a population over many generations
trait distribution
The range of characteristic differences in a population
Why would you put the gene of a fish in a tomatoe?
To keep the tomatoe from freezing?
A change to any part of an ecosystem may disrupt the flow of energy and matter T/F
True
Can you take a gene from a fish and put it into a tomato?
True
Each level of organization (organisms, population, community) gets more complex as more of the environment is considered T/F
True
How quickly an ecosystem can recover depends on the type and serverity of the disturbance.
True
Is natural selection a observable fact T/F
True
The higher percentage of tuskless elephants after the Mozambique civil war is best explained by natural selection T/F
True
The living pares of an ecosystem interact with each other and with nonliving parts. Because of these interactions, ecosystems are dynamic- meanng they are always changing. T/F
True
The playground in the back of the school should be considered an ecosystem T/F
True
Species
organisms of the same king and can successfully reproduce, resulting in fertile offspring.
species diversity
refers to the number of species that are in a given area as well as the number of individuals of each species in a given area.
Ecosystem diversity
refers to the variety of ecosystems in a given area.
Generic Diversity
refers to the variety of genes within a species or population in a given area.
Which of the following is an example of an environmental pressure?
A lake that's gradually running out of water
Monkey flowers are found in a variety of colors ranging from white to pink to red. Animals such as bees and hummingbirds help these plants reproduce by transferring pollen as they travel from flower to flower. Hummingbirds prefer red flowers. Bumblebees prefer pink flowers. Which population distribution of hummingbirds and bumblees would you expect to find if there were mostly pink monkey flowers in one area?
A large population of bumblebees and a few hummingbirds.
What is a common ancestor?
An animal from which two or more different species evolved
Identify which of the following could be an ecosystem disturbance. Clear cutting trees, oil spill, volcanic eruption, increase in a insect group, wildfire
Clear cutting tree, oil spill, volcanic eruption, wildfire
What proves common decent
DNA, comparative anatomy, biology, math, embryology, fossils
Genetic variation
Different types of genes in a population for an inherited characteristic
Dogs closest common ancestor are domestic cats T/F
False
What is necessary for evolution to occur?
Genetic Variation, Genetic Mutation
abiotic factors
nonliving things in an ecosystem
In which of the following situations is a population most likely to become extinct?
When an environmental change is rapid, and the population is unable to adapt to the change over a few generations.
Ecosystem disturbance
a change in environmental conditions that causes a change in the ecosystem
Ecosystem
a system made up of the interactions between the living and nonliving parts.
Ecosystem stability
factors stay more or less within a certain range and in a mostly stable condition, even as individual parts change.
Population
group of the same type of organisms
Community
multiple living things from a variety of animal and plant species.
