Evolution, Bio 20 [Catholic School]

A Adaptation is?

• A Visible or individual difference, can be helpful can be harmful or neutral.

• Helps a organism survive.

• A add of tations

• Study of developing offspring before birth.

3 Adaptation types

• Structural, physical and mental.

• Structural, elemental and behavioral.

• Structural, physical and behavioral.

• Structural, physical and geographical.

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

If a new trait DOES help an organism survive, what may happen to it?

• It dies and its DNA is not passed on

• It survives and its DNA is passed on

• It changes its traits to adapt and survive

 

What is natural selection?

• When reproduction occurs and mutations happen.

• When a offspring has the traits from its parents.

• When an organism is able to camoflauge in its environment.

• the process whereby organisms that are better adapted to their environment tend to survive and reproduce more offspring.

A change in a gene, group of genes or chromosome that results in a change in the proteins

• Replication

• Mutations

• Translation

• Transcription

The gradual change in species over time is...

• Evolution
• Nucleotide 
• Adaptation
• Natural Selection

What type of structures are these?

• homologous
• vestigial 
• analogous
• fossil

If a new trait DOES NOT help an organism survive, what may happen to it?

• It dies and its DNA is not passed on

• It survives and its DNA is passed on

• It survives and DNA is not passed on

This picture is best known as

• homologous structures
• analogous structures
• vestigial structures
• embryology