Final STAAR Biology Practice

Front

What are the reactants of photosynthesis?

Back

Carbon dioxide and water.

Front

What are the monomers of proteins?

Back

Amino acids.

Front

What evidence do scientists use to compare the limbs of organisms?

Back

They have the same basic structure.

Front

What is the role of mutations in natural selection?

Back

A mutation may result in an adaptive trait that makes an organism more likely to survive and reproduce.

Front

What are the possible phenotypes of offspring when one parent is homozygous for brown fur and the other is heterozygous?

Back

100% Brown fur.

Front

Define photosynthesis.

Back

The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is a monomer?

Back

A monomer is a small molecule that can join together with other similar molecules to form a larger polymer.

Front

What is a homozygous genotype?

Back

A genotype consisting of two identical alleles for a particular gene.

Front

What is a heterozygous genotype?

Back

A genotype consisting of two different alleles for a particular gene.

Front

What is natural selection?

Back

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