What are homologous structures?

Structures that have the same shape but a different function.

Remains of once living organisms.

Structures that no longer have a function.

Structures that have the same function but different shape.

What are vestigial structures?

Structures that no longer have a function.

Remains of once living organisms.

Structures that have the same shape but a different function.

Structures that have the same function but different shape.

Which of the following explains the genetic variation in this image?

There is a variety of heights in this population of animals.

There was a drought this year and the vines of the fruits are not growing as long as they normally do. Consequently, the fruit is hanging much higher than usual.

The animals. whose DNA codes for tall height are able to reach the food, eat, survive, reproduce, and pass on their tall genes. The shorter animals starve to death

Over time, the advantageous allele for tall height will build up in this population while the not helpful allele for short height will decrease in this population. If there is no further change in the environment, the population will eventually be mostly tall.

Which of the following explains the selective pressure in this image?

There was a drought this year and the vines of the fruits are not growing as long as they normally do. Consequently, the fruit is hanging much higher than usual.

The animals whose DNA codes for tall height are able to reach the food, eat, survive, reproduce, and pass on their tall genes. The shorter animals starve to death.

Over time, the advantageous allele for tall height will build up in this population while the not helpful allele for short height will decrease in this population. If there is no further change in the environment, the population will eventually be mostly tall.

There is a variety of heights in this population of animals.

Which of the following explains the differential survival and reproduction that is shown in this image?

The animals whose DNA codes for tall height are able to reach the food, eat, survive, reproduce, and pass on their tall genes. The shorter animals starve to death.

There was a drought this year and the vines of the fruits are not growing as long as they normally do. Consequently, the fruit is hanging much higher than usual.

Over time, the advantageous allele for tall height will build up in this population while the not helpful allele for short height will decrease in this population. If there is no further change in the environment, the population will eventually be mostly tall.

There are a variety of heights in this populations of animals.

Which of the following explains the change over time that will occur as a result of what you are seeing in this image.

Over time, the advantageous allele for tall height will build up in this population while the not helpful allele for short height will decrease in this population. If there is no further change in the environment, the population will eventually be mostly tall.

There is a variety of heights in this population of animals.

There was a drought this year and the vines of the fruits are not growing as long as they normally do. Consequently, the fruit is hanging much higher than usual.

The animals whose DNA codes for tall height are able to reach the food, eat, survive, reproduce, and pass on their tall genes. The shorter animals starve to death.

A group of organisms that can mate with each other and produce fertile offspring.

A group of organisms that genetically are very different from each other.

A group of organisms that can mate and produce offspring even if those offspring are infertile.

Individual organisms that live in the same environment.

Of the following, which is NOT part of Darwin's theory of natural selection?

Individuals with variations that are beneficial in their environment have shorter lifespans and produce fewer offspring.

Helpful variations in a population tend to be passed on while not helpful variations in a population are not.

Variations in a population exist and those variations are inherited.

Living things tend to produce more offspring than can survive.

Darwin began to formulate his concept of evolution by natural selection after…

observations of many species of plants and animals while aboard the H.M.S Beagle.

reading the writings of Mendel.

a long conservation with Captain Fitzroy.

According to Darwin's theory of natural selection, the individuals that tend to survive are those that have...

variations best suited to the environment.

the ability to change their bodies to fit the environment.

Individuals in a population that have a variation that gives them an advantage in their environment are more likely to …

move to a different environment.

change their characteristics to fit the environment.

The process by which inherited traits of a population change over many generations.

A group of organisms that can mate to produce fertile offspring.

A trait that allows organisms in a population to survive and reproduce in their environment.

The process in which individuals better adapted to their environment are more likely to survive and reproduce.

Which of these statements best describes what Charles Darwin observed on the Galapagos Islands?

The finch population on each island was unique.

The finches on the islands ate seeds and nuts but no insects.

The finches on the islands were the same as the finches in Ecuador.

The finches could produce offspring only with finches from other islands.

What is a population?

a group of organisms of the same species that live in a defined geographical area

a group of organisms that can mate to produce fertile offspring

a process by which inherited traits in a population change over many generations

a process in which better-adapted individuals are more likely to survive and reproduce

Which is a term for the fact that organisms that survive a selective pressure have more opportunities to reproduce, so we can see an increase in the frequency of that trait in the population over time.

Differential Survival and Reproduction

Which of the following is a fossil?

a trace of an organisms that existed in the past

a group of organisms that can reproduce

a structure or organ that no longer functions

T wo organisms that are closely related would have...

exactly the same DNA sequences.

completely different DNA sequence.

Which of the following are homologous structures?

Legs on a beetle and legs on a cat

Human eyebrows and ant antennas

the early stage of development in an organism

the study of the bone structure in an organism

What is suggested by the similarity of early embryos of different species of vertebrates?

Evolution from a distant common ancestor.

No evolutionary relationships between the groups.

Similar environments in the past.

Two organisms that are closely related would have

completely different DNA sequence.

Amino acid sequences in one organism that resemble those of another suggest a

lack of evolutionary relationship.

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.

Why would a population with a large amount of genetic variation be more likely to survive a severe climate change in its environment?

Some individuals will have traits better suited to the new climate and be more likely to pass them on.

Individuals will only create offspring well-suited to the climate change.

The individuals would produce more offspring.

Individuals better suited to the new climate will help less-suited individuals survive.

When scientists compare the amino acid sequences for the red blood cell protein hemoglobin between various species, what can they determine about the evolutionary relationship between the species?

It can provide evidence about the relatedness of the different species: if they are more similar they have a more recent common ancestor.

It can be determined how efficient hemoglobin is for different species.

It cannot determine relatedness between different species, only individuals of the same species.

It can show which species evolved first.

The Table below shows the # of differences in amino acids in a protein called “Cytochrome C” when comparing humans to other organisms. The protein is used by many plants and animals to convert energy in cells. List the 4 closest human relatives based on this biochemical comparison.

chimpanzee, gorilla, rhesus monkey, horse

chimpanzee, horse, rattlesnake, snapping turtle

fruit fly, bread mold, tuna fish, snapping turtle

gorilla, rhesus monkey, rattlesnake, gorilla

How do fossils provide evidence that evolution has happened on Earth?

Fossils show how life forms present today are different than those from the past.

Fossils show how the sizes of certain animals has changed drastically over millions of years.

Fossils show that some species have gone extinct.

Different sedimentary rock layers provide evidence for how the environment has changed over time.

Evolution

Authored by Kimberly Johnson

Biology

KG - University

Used 42+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What did Darwin conclude about the finches on the Galapagos Islands?

They evolved from a common ancestor on the mainland.

They evolved from many different types of birds.

They all came from different countries and continents .

They developed from other types of organisms.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement best describes the process of evolution?

Populations can survive in different locations on earth.

Environmental conditions limit the number of species on Earth.

Populations grow when resources are abundant.

The traits of a species can change over time.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why did the population of peppered moths in England change from light to dark after the Industrial Revolution?

Light moths were easy to see against sooty trees and were eaten.

Light moths were killed by soot.

The birds that ate the dark moths were killed by soot.

Dark moths were produced by industrial processes.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of these would be considered an adaptation of an animal that lives in the snowy tundra?

large webbed feet

a thick coat of fur and fat

green scales

a diet that consists of pineapples and coconuts

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Genetic variation between individuals of a population or species is caused by:

Sunburns

Mitosis

Random mutations

Homologous structures

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In this image, the population of barnacles shows___________.

Variation

Adaptation

Motivation

Natural Selection

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In this population of flowers, pink coloring is an ___________ that attracts more pollinating insects.

Variation

Natural Selection

Adaptation

Speciation

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Evolution

What did Darwin conclude about the finches on the Galapagos Islands?

Which statement best describes the process of evolution?

Why did the population of peppered moths in England change from light to dark after the Industrial Revolution?

Which of these would be considered an adaptation of an animal that lives in the snowy tundra?

Genetic variation between individuals of a population or species is caused by:

In this image, the population of barnacles shows___________.

In this population of flowers, pink coloring is an ___________ that attracts more pollinating insects.

What are the remains of living organisms?

What are homologous structures?

What are vestigial structures?

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