Evolution Review

Fill in the Blanks

Evolution is change over

.

Multiple Choice

Anaerobic means

• with oxygen

• without oxygen

Multiple Choice

Aerobic means

• with oxygen

• without oxygen

Multiple Choice

The cells that came first were simple _____ cells.

• prokaryotic

• eukaryotic

• muticellular

Multiple Choice

Over time these simple cells evolved to use oxygen then became more complex ________ cells.

• prokaryotic

• eukaryotic

• unicellular

Multiple Choice

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

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

• Fossils show that some species have gone extinct

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

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

Multiple Choice

Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as

• vestigial structures

• analogous structures

• homologous structures

• fossil structures

Multiple Choice

The diagram illustrates an embryonic stage of two organisms.

Which of the following can be determined by observing the embryos shown in the diagram

• The organisms share a common ancestry.

• The organisms belong to the same genus.

• The organisms are native to the same geographic areas.

• The organisms will grow into anatomically similar adults.

Multiple Choice

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

• They have a common ancestor

• All organisms resemble humans

Multiple Choice

The best evidence for evolution is

• fossils

• DNA

• homologous structures

• embryology

Multiple Choice

Vestigial structures

• structures that perform a similar function but are not similar in origin

• remnants of once-important structures that have slowly lost all or most of their function

• features found in different organisms that share structural similarities but may have very different functions

• preserved remains of an organism

Multiple Choice

Which layer is the youngest

• 1

• 2

• 3

• 4

Multiple Choice

According to this data, the unknown bacterial species is most closely related to: 

• Species I

• Species II

• Species III

• Species IV

​Sin cambio no puede haber evolución

Multiple Choice

What do we call all of the genetic information found in a population.

Cómo llamamos a toda la información genética que se encuentra en una población.

• population

• genetic drift

• evolution

• gene pool

​Las mutaciones genéticas son esenciales para la supervivencia y evolución de las poblaciones

Multiple Choice

Mutations are a change in what?

¿Las mutaciones son un cambio en qué?

• DNA

• tRNA

• protein

• rRNA

Multiple Choice

This is the process that ultimately creates new variations and changes in DNA; leads to the creation of new alleles

Este es el proceso que finalmente crea nuevas variaciones y cambios en el ADN; conduce a la creación de nuevos alelos

• Mutation

• Microevolution

• Natural selection

• Gene flow / genetic drift

​El flujo de genes ocurre cuando los individuos entran o salen de una población. Esto generalmente resulta en una mayor variación genética.

Multiple Choice

What is gene flow?

¿Qué es el flujo de genes?

• The addition or removal of genes in a population due to individuals entering or leaving one population for another

• A change in genes frequencies when a new population arises from only a few individuals

• A reduction in population caused by natural disasters, disease, hunting, etc.

• A change in the gene pool due to chance

Multiple Choice

Genetic drift is driven by chance, not natural selection

La deriva genética es impulsada por el azar, no por la selección natural

• true

• false

Multiple Choice

If a trait HELPS an organism survive, what may happen to it?

• It dies and its DNA is not passed on

• It changes its traits to adapt and survive

• It survives and its DNA is passed on

Multiple Choice

The _________________ _________________ occurs when there is a reduction in population due to natural disasters, over hunting or disease.

• founder effect

• gene flow

• bottleneck effect

• genetic drift

Multiple Choice

What does the image represent?

• Gene flow

• Gene drift

• Mutation

• Adaptation

Multiple Choice

A virus killed most of the seals in the North Sea (e.g. dropped the population from 8000 to 800).  In an effort to help preserve the species, scientists caught 20 of the remaining seals and used them to start a new population in the northwest Pacific Ocean.  Which of the following statements would accurately describe the new   population?  

• The new seal population is genetically less diverse than the original population 

• The new seal population is genetically more diverse than the original population

• There is equal genetic variety compared  to the original population 

• None of the answers