WorksheetsMidTerm Study Guide
Total questions: 20
Worksheet time: 13mins
Individuals that are well adapted to their environment will survive and produce
fewer mutations
more offspring
stronger gene
better traits
According to Darwin's theory of natural selection, individuals who survive are the ones best adapted to their environment. Their survival is due to the (Chose all appropriate answers.)
possession of adaptations developed through use.
possession of inherited adaptations that maximize fitness
lack of competition within the species
variations best suited to the environment.
ability to withstand all of the selection pressures acting on them
One of the biggest ways that a species evolves is because some organisms with some traits survive and reproduce better than others. This process is known as
natural selection
convergent evolution
coevolution
sexual selection
Which of the following FOUR items are considered necessary factors for natural selection and/or evolution?
The potential for a species to increase in number
Plasmid transfer from one bacterium to another
Competition for limited resources
The proliferation of organisms better able to survive (surviving organisms reproduce)
Genes can be passed on from generation to generation
Which of these are adaptations? [Select all that apply]
camouflage
protective layers
mimicry
warning coloration
Which of these best illustrates natural selection?
An organism with favorable genetic variation will tend to survive and breed successfully
A population monopolizes all of the resources in its habitat, forcing other species to migrate
A community whose members work together utilize all existing resources and migratory routes
The largest organisms in a species receive the only breeding opportunities
The dominant genes become more common with each generation
Which of the following is REQUIRED for the process of natural selection to occur?
Numerous species must have recently become extinct
A food source must disappear
The must be a sudden change in the environment
Traits must be passed from one generation to the next
Genes for traits that help an organism be more successful reproductively can be expected to
cause it to evolve into a new species.
become more common in the future
cause the extinction of the species
eventually be eliminated by natural selection
If a mutation introduces a new skin color in a lizard population, which factor might determine whether the frequency of this new phenotype will increase?
whether the mutation resulted from harmful chemical introduced into the ecosystem as pollution
whether the mutation makes some lizards more fit for their environment than other lizards
whether the mutation formed due electromagnetic radiation or excessive solar radiation
There are two variations of a species of peppered moth. One is a very light gray and the other is black. All of the moths live on trees with white bark. What is most likely to lead to more black moths and fewer gray moths?
Drought kills many of the trees
A contagious disease kills many of the moths.
Air pollution stains the tree bark a darker color
New predators are introduced and eat more moths
Which statement below would best illustrate the concept of natural selection?
an organism can return to the characteristics of its ancestors
a population of animals will move from one region to another
those organisms that are best adapted to the environment will survive to produce more offspring
all organisms are made up of cells
Charles Darwin's observations that finches of different species on the Galapagos Islands have many similar physical characteristics supports the hypothesis that these finches
all eat the same type of food.
acquired traits through use and disuse
descended from a common ancestor.
have the ability to interbreed
Which scientist formulated the theory of evolution through natural selection?
Charles Darwin
Thomas Malthus
James Hutton
Jean-Baptiste Lamarck
The process by which organisms adapt to their environment over time.
(a)
Theorized that evolution occurred through use & disuse of physical features. Now proven to be a false concept.
Charles Darwin
Jean Baptiste De Lamarck
This is an inherited characteristic that increases an organism's chance of survival.
(a)
A substance that stops or slows down the growth of microorganisms
(a)
Protect America from health, safety and security threats, both foreign and in the U.S.
Resistant
Binary Fission
Centers of Disease Control (CDC)
Anti-Bacterial
A type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes
Sexual Reproduction
Asexual Reproduction
Asexual reproduction by a seperation of the body into two new bodies
(a)
