7th grade science exam review

Front

Micrometers are a ____ times smaller than a meter.

Back

million

Front

What is the basic unit of structure and function in living things?

Back

cells

Front

If yellow seeds are dominant to green seeds in pea plants, what is the genotypic ratio of the offspring when crossing a heterozygous yellow seed with a green seed?

Back

50% Gg, 50% gg

Front

Which is larger: cells or molecules?

Back

cells

Front

What is the process by which plants make their own food using sunlight?

Back

Photosynthesis

Front

What is the smallest unit of matter?

Back

Atom

Front

What is the term for a trait that is expressed when at least one dominant allele is present?

Back

Dominant trait

Front

What is the genetic makeup of an organism called?

Back

Genotype

Front

What is the observable physical characteristic of an organism?

Back

Phenotype

Front

What is the process of change in the heritable traits of a population over generations?

Back

Evolution