Missouri Biology EOC Practice Test

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring. It is a key mechanism of evolution.

Front

Define carrying capacity.

Back

Carrying capacity is the maximum number of individuals of a particular species that an environment can support sustainably.

Front

What is the significance of beak depth in birds?

Back

Beak depth can indicate the adaptation of bird species to their environment, particularly in relation to food availability.

Front

Explain complete dominance in genetics.

Back

Complete dominance occurs when the phenotype of the heterozygote is indistinguishable from that of the dominant homozygote.

Front

What is the role of phenotypes in natural selection?

Back

Phenotypes are the observable traits of an organism, and they can affect an organism's ability to survive and reproduce in its environment.

Front

What does it mean for a species to adapt?

Back

To adapt means to develop traits that enhance survival and reproduction in a specific environment over time.

Front

How does climate change affect species survival?

Back

Climate change can alter habitats and food sources, leading to changes in population dynamics and survival rates of species.

Front

What is the relationship between precipitation and species population?

Back

In many ecosystems, increased precipitation can support larger populations of species by providing more resources.

Front

Define genotype.

Back

Genotype is the genetic constitution of an individual, often represented by alleles (e.g., AA, Aa, aa).

Front

What is the difference between homozygous and heterozygous?

Back

Homozygous refers to having two identical alleles for a trait, while heterozygous refers to having two different alleles.