Semester 1 Final Review

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.

Front

What is the expected phenotype ratio of offspring from a cross between Aa and Aa?

Back

75% Brown Hair and 25% Blond Hair.

Front

What is the advantage of having different shaped beaks in birds?

Back

To be able to eat the food readily available in the environment.

Front

What is a biotic factor in an ecosystem?

Back

A biotic factor is a living component of an ecosystem, such as plants, animals, and microorganisms.

Front

Which of the following is a biotic factor in an ocean ecosystem?

Back

The fish in the water.

Front

What happens to carbon when humans burn fossil fuels?

Back

Most of the carbon quickly enters the atmosphere as carbon dioxide.

Front

What is the role of respiration in the carbon cycle?

Back

Respiration releases carbon dioxide into the atmosphere.

Front

Define 'ecosystem'.

Back

An ecosystem is a community of living organisms interacting with their physical environment.

Front

What is the difference between biotic and abiotic factors?

Back

Biotic factors are living components of an ecosystem, while abiotic factors are non-living physical and chemical elements.

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged among the biosphere, geosphere, hydrosphere, and atmosphere.