Keystone Biology Review Module 2

Front

What is a producer in an ecosystem?

Back

A producer is an organism that can make its own food through photosynthesis or chemosynthesis, serving as a primary source of energy for other organisms in the food chain.

Front

What is the role of the sequence of bases in DNA replication?

Back

The sequence of bases in DNA carries genetic information and must be accurately copied to ensure that new DNA strands are identical to the original.

Front

What is an abiotic component of an ecosystem?

Back

An abiotic component is a non-living part of an ecosystem, such as water, sunlight, temperature, and soil.

Front

What does the term 'allele' refer to?

Back

An allele is a variant form of a gene that can result in different traits, such as eye color.

Front

What is the significance of the location of a gene?

Back

The location of a gene on a chromosome determines its expression and the traits it influences.

Front

What is the dominant/recessive pattern of inheritance?

Back

In this pattern, one allele (dominant) can mask the expression of another allele (recessive) in determining a trait.

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype is the observable physical or biochemical characteristics.

Front

What is the function of decomposers in an ecosystem?

Back

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

Front

What is the role of primary consumers in a food chain?

Back

Primary consumers are organisms that eat producers (plants) and are the second level in the trophic pyramid.

Front

What is the importance of annual precipitation in a grassland ecosystem?

Back

Annual precipitation affects the types of vegetation and animal life that can thrive in a grassland ecosystem.