Units 6-8 EOC Review

Front

What is the correct phenotype for an organism with genotype BB?

Back

The phenotype is blue.

Front

What is the term for a feature that allows an organism to survive better in its environment?

Back

Adaptation.

Front

What is the genotypic percentage resulting from a cross of BB x bb?

Back

BB = 25%, Bb = 50%, bb = 25%.

Front

What happens to a population when the death rate is equal to the birth rate?

Back

The population stays the same.

Front

Which group of animals is most closely related to birds?

Back

Saurischian dinosaurs.

Front

Define phenotype.

Back

The observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.

Front

Define genotype.

Back

The genetic constitution of an individual organism.

Front

What is natural selection?

Back

The process whereby organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is a homologous structure?

Back

An anatomical feature in different species that is similar due to shared ancestry.

Front

What is a vestigial structure?

Back

A structure that has lost most or all of its original function through the course of evolution.