What is the genetic material that contains the information for life?
What is DNA?
Yellow beetle and green beetles live in the rainforest canopy. What will happen to the populations of beetles?
The green population will increase and the yellow will decrease?
What is a species?
A group of similar organisms that can reproduce fertile offspring.
Can an organism "CHOOSE" to evolve and change?
No, organisms CANNOT CHOOSE to change their genes or traits!
In an arctic (cold) environment, which would survive longer: red foxes or white foxes?
White foxes
What is how well an organism is suited for its environment based on reproductive success?
What is "fitness"?
What is most likely to happen to this moth population in an environment with light colored sand? Why?
Dark moths--hunted easily, dark moths--population decreases.
Does natural selection typically take a long time or a short time?
What is a Loooooooooooooooooooooooooooooooooooooong time?
Which of the following is a major factor that drives biological evolution?
a. Individuals share unlimited resources
b. variation exists within populations
c. organisms produce very few offspring
d. helpful variations cannot be inherited
b. variation exists within populations
Who was the scientist that studied organisms in the Galapagos islands?
Charles Darwin
What is a change in a gene that results in a new trait?
What is a mutation?
Scientists estimate that there are more than 20,000 species of ants. The species range in size from 1 mm long to 38 mm long and live in most environments. The diets of ants range from flowers and seeds to fluids from their own larvae. Ants have been able to successfully inhabit so many different environments because their populations have been able to-
A. hybridize with other species of insects
B. adapt to a variety of habitats and food sources
C. fill niches usually occupied by mammals
D. occupy habitats that have no other life-forms
B. adapt to a variety of habitats and food sources
Some organisms have genes that improve their ability to survive and reproduce. If the genes also help their offspring survive and reproduce, then which of the following will most likely increase?
A. The frequency of the genes in one individual
B. The frequency of the genes in the population
C. The number of genes in one chromosome
D. The number of genes in the species
B. The frequency of the genes in the population
Which condition is essential for natural selection to result in a new species?
A. Unlimited resources
B. An inherited variation
C. A non-changing environment
D. A long life span
B. An inherited variation
What two main organisms did Charles Darwin study that led to his discovery of Natural Selection?
Finches and Tortoises.
A TRAIT that helps an organism to survive and reproduce in its environment
What is Adaptation?
What would happen if the environment changes drastically and no organisms have fitting adaptations?
Species could go extinct
Genetic variation can aid in the survival of species when the environment changes. Which of the following is the best example of an organism with a genetic variation that could improve survival chances over time?
A. An ant that is resistant to pesticide
B. A wasp that is infected with parasites
C. A cactus that has no spines
D. A mouse that has learned to avoid mousetraps
A. An ant that is resistant to pesticide
Due to pollution, a pond becomes darker over time. Which trait variation became more common?
a. light colored fish
b. fast fish
c. dark colored fish
d. slow fish
dark colored fish
How did different beak sizes show natural selection occurred in the Galapagos?
Because it showed that the birds adapted to be able to access different food sources
In the context of natural selection, what is fitness?
What is the ability to survive & reproduce
Which of the following are factors that influence natural selection- pick all that apply.
A. variation
B. competition
C. fitness
D. meiosis
variation, competition and fitness
What is the "goal" of natural selection for a species?
To "SURVIVE" and "REPRODUCE?"
What term refers to a species creating more offspring than can survive to reproduce?
Rattlesnakes use camouflage to blend in with their environment. Is this a type of behavioral or physical adaptation?
Physical