Which statement is part of Darwin’s theory of evolution by natural selection ?

More offspring are produced than can possibly survive.

The organisms that are the fittest are always largest and strongest.

The number of offspring is not related to fitness.

Which best describes these fossils?

The oldest fossils can be found on the lower layers

The oldest fossils can be found at the top layers

The youngest fossils are always found on the bottom layers

You can not tell the age of any of these fossils

In his observations of the finches in the Galapagos Islands, Darwin stated that we could never “watch” natural selection in action. Why did Darwin believe this?

Natural selection occurs over so many generations, it is impossible to see changes occur.

Natural selection happens so quickly, it is difficult to see.

Natural selection is an internal process that can not be outwardly observed.

Natural selection is a process that occurs randomly, and it is unlikely that a human would be present when it occurs.

The fact that all organisms have DNA as their genetic material is evidence that

all organisms may have descended from a common ancestor.

all organisms undergo natural selection.

selective breeding takes place every day.

genetic resistance rarely occurs.

Which of the following best illustrates natural selection?

An organism with favorable genetic variations 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 utilizing all existing resources and migratory routes.

The largest organisms in a species receive the only breeding opportunities.

Which best describes the phrase survival of the fittest ?

those that can survive and reproduce are most successful

strongest in a population are most successful

fastest in a population are most successful

those that can live the longest are most successful

Mutations are important because they bring about

genetic variation needed for a population to evolve

death of the organism in which they develop

benefits for the individual, not for the population

Hardey-Weinberg equilibrium within a population

Charles Darwin observed that finches of different species on the Galápagos Islands have many similar physical characteristics, this supports the hypothesis that these finches

descended from a common ancestor.

acquired traits through use and disuse.

when two species can no longer interbreed

when a population reaches a balance and change is no longer occuring

when populations move away from each other

when species begin to pass on acquired traits and change their behavior

Humans, birds, whales, and lizards all have similar arm bones. What is the reason for this?

The function of these bones is the same in all animals

They live in similar environments

The possible cause for the finches on the Galapagos Islands to have beaks that are different from the finches living on the south american mainland?

there were different types of food available on the island

mainland finches built different nests.

all the different types of predators living on the island

Mutations can benefit humans because they can:

Make an organism more suited to live in its environment.

Make organisms live shorter lives

Cause organisms to grow extra limbs.

Why are advantageous traits more likely to be passed onto offspring?

Because they are more likely to survive and reproduce.

Because they come from dominant alleles.

Because they come from recessive alleles.

Because the trait is an acquired phenotype.

ability to survive cold weather

The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?

Both will be equally successful

An antibiotic-resistant bacterium

A genetically modified organism

How can individuals help prevent antibiotic resistance?

Finish the full course of antibiotics

Demand antibiotics from doctors

Take antibiotics only when feeling very sick

What is antibiotic resistance?

The ability for bacteria to resist antibiotics.

The ability for humans to resist antibiotics.

The ability for humans to repel bacteria.

The ability for bacteria to become weak from antibiotics.

What is happening because bacteria became more resistant to antibiotics.

Bacteria are starting to multiply and grow

Humans are increasing in population.

Antibiotics are becoming weaker.

How has antibiotic resistance changed over time?

Bacteria are becoming more resistant to the antibiotics that are being perscribed

Antibiotics are being made cheaply and bacteria are becoming more resistant

Humans are buying less antibiotics and becoming weaker

Which one of the statements is true?

Bacteria are still becoming more resistant to antibiotics

Antibiotics are being used less

Humans are becoming more resistant to bacteria

Antibiotics are becoming weaker

Variation and Natural Selection

Authored by Kathleen Edelman

Biology

10th Grade

Used 1+ times

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54 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Any change in the sequence of DNA is a

recombination

mutation

chromatin

independent assortment

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Traits that help an organism survive are called....

evolution

natural selection

adaptations

habitats

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The ability to recognize a predator is an example of a ______adaptation?

behavioral

structural

physiological

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Almost all populations have some variation.

true

false

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which is a group of organisms with similar characteristics and are able to interbreed to produce offspring

Variation

Species

Fitness

Gene

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Differences in DNA between individuals or populations

Environmental Variation

Genetic Variation

Adaptive Feature

Genetic Engineering

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The process of making changes in the DNA code of a living organism is called

selective breeding

genetic engineering

inbreeding

hybridization

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Variation and Natural Selection

Any change in the sequence of DNA is a

Traits that help an organism survive are called....

The ability to recognize a predator is an example of a ______adaptation?

Almost all populations have some variation.

Which is a group of organisms with similar characteristics and are able to interbreed to produce offspring

Differences in DNA between individuals or populations

The process of making changes in the DNA code of a living organism is called

Which statement is part of Darwin’s theory of evolution by natural selection?

Which best describes these fossils?

Individuals that are well adapted to their environment will survive and produce:

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