The Living Earth Final Exam (Spring 24)

Front

What evidence did Wegener use in his theory of continental drift?

Back

Wegener used evidence such as continents and fossils fitting together like puzzle pieces, glacier scars, temperature evidence, and the alignment of mountain ranges and coal deposits across continents.

Front

What amino acid is represented by the codon UUA?

Back

Leucine

Front

In a pedigree chart, how is a male represented?

Back

A male is represented by a square.

Front

Which type of cell contains chloroplasts?

Back

Plant cells contain chloroplasts.

Front

What is the carrying capacity of a population in an environment?

Back

The carrying capacity is the maximum population size that an environment can sustain, which in this case is 70 deer.

Front

What is the primary function of chloroplasts in plant cells?

Back

Chloroplasts are responsible for photosynthesis, converting sunlight into energy.

Front

Define 'ecosystem'.

Back

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

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic material, recycling nutrients back into the ecosystem.

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a complex network of interconnected food chains.

Front

What is genetic variation and why is it important?

Back

Genetic variation refers to the differences in DNA among individuals, which is crucial for a population's ability to adapt to changing environments.