Pearson 10: Evolution - Comprehenison Quizizz

Pg. 69 - What do fossils of birds and theropod dinosaurs reveal about their relationship?

• They are completely different from each other

• They have a few similarities in their structure

• They are unrelated species

• Theropod dinosaurs were the ancestors of birds

Pg. 69 - What is evolution?

• A sudden genetic change in a species

• A gradual change in the structure of a species over time

• A type of bone in the limbs of lobe-finned fish and amphibians

• A process that occurs only in horse-like animals

Pg. 70 - What is the significance of the gradual decrease in the number of toes in horse evolution?

• It allowed horses to run faster while supporting a large body.

• It increased the overall size of the horse.

• It allowed horses to adapt to different environments.

• It had no significant impact on horse evolution.

Pg. 70 - Which genus of horse is recognized as a direct ancestor of the modern horse?

• Hyracotherium

• Merychippus

• Equus

• Mesohippus

Pg. 71 - Which of the following characteristics are considered homologous?

• A cat's paw and an insect's foot

• A cat's paw and a lion's paw

• An insect's wing and a bird's wing

• A bird's beak and a fish's fin

Pg. 71 - What is a homologous structure?

• Characteristics that have the same basic structure and function in all related species.

• Characteristics that have the same function in all related species, but with different structures.

• Characteristics that have the same basic structure, but not necessarily the same function in all related species.

• Characteristics that have different structures and functions in all related species.

Pg. 71 - How do genes relate to homologous structures?

• The more alike two organisms are, the fewer genes they share.

• The more alike two organisms are, the more genes they share.

• Genes are not related to homologous structures.

• Homologous structures are controlled by different inherited genes.

Pg. 72 - Why are the streamlined bodies and dorsal fins of dolphins and sharks considered analogous structures?

• They have the same genetic origin.

• They are inherited from a common ancestor.

• They evolved in similar marine environments.

• They are only found in animals with a close evolutionary relationship.

Pg. 72 - What is artificial selection?

• The process of selecting only wild animals for breeding

• The process of selectively breeding particular organisms with desirable features

• The process of releasing animals back into the wild after breeding them in captivity

• The process of allowing animals to breed naturally without human intervention

Pg. 72 - How did breeders create the different colours and patterns of pet budgerigars we have today?

• By using genetic engineering

• By allowing random mating

• By selecting wild budgerigars with desirable traits as parents and breeding from them

• By releasing different coloured budgerigars into the wild