Review Unit 3

Structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

• Charles Darwin

• Mutation

• Chromosome

• Nucleotide

The process by which populations of organisms with variations that help them survive in their environment live longer, compete better, and reproduce more.

• Natural Selection

• Adaptation

• Structural Adaptation

• Behavioral Adaptation

Which letter represents the most recent common ancestor of sponges and mushrooms?

• A

• B

• C

• D

• E

Based on the cladogram, what trait was last developed?

• Opposable thumbs

• lungs

• claws / nails

• fur / mammory glands

The structures shown are_________

• homologous
• heterologous
• analogous
• vestigial

  The diagram shows an image of a Pterosaur wing, bat wing, and bird wing.  These are all different organisms, but share similar wing structures.  If these structures are similar due to common ancestry, which of the following best describes them?

• a.  Vestigial Organ
• b.  Embryological Similarities
• c.  Homologous Structures
• d.  Analogous Structures

A fossil of an extinct dinosaur is found and the anatomy of the fossil shows similarities to that of a bird. What could this mean?

• This is purely by chance and isn't significant
• The extinct dinosaur and modern bird share a common ancestor
• All dinosaurs evolved into birds and that's why there aren't any dinosaurs alive today
• Dinosaurs choose to fly, and evolved into birds to escape predation and capture food

Penguin flipper and fish fin

• Homologous

• Vestigial

• Analogous

• None of the above

____________ & _________________ are organelles that definitely arose from endosymbiosis.

• Nucleus and cell membrane

• Chloroplast and mitochondria

• Mitochondria and nucleus

• Cell wall and chloroplast

The 8 levels of classification, most broad to most specific.

• Domain, Genus, Family, Order, Class, Phylum, Kingdom, Species
• Domain, Species, Kingdom, Genus, Phylum, Family, Class, Order
• Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
• Order, Kingdom, Species, Domain, Phylum, Family, Class, Genus