Semester 2 Spring Final 2019

When individuals with an average form of a trait have the highest fitness the result is

A change in the DNA sequence is called a

The first organisms on Earth were most like today's

The movement of organisms into a given area from another area is called

Each of the following is an abiotic factor in the environment EXCEPT

If an allele makes up 1/4 of a populations alleles for a given trait, its relative frequency is

Traits that are produced by the interaction of several genes are said to be

The total amount of living tissue within a given a trophic level is called

Nitrogen fixation is carried out primarily by

The Cambrian Explosion resulted in the evolution of the first

Symbiosis in which both species benefit is called

The length of time required for half of the radioactive atoms in a sample to decay is

What are 2 ways a population can decrease in size?

Darwin called the ability of an organism to survive and reproduce in its environment

Carbon cycles through the biosphere in all of the following processes EXCEPT

Earth's most recent era is the

Genes contain instructions for assembling

Biology is the study of

A snake that eats a frog that has eaten an insect that fed on a plant is a

Which of the following has been produced through selective or artificial breeding?

Mendel concluded that traits are

Gametes are made by the process of

How many codons are needed to specify three amino acids?

RNA contains the sugar

Which of the following is a density-independent factor?

If an organisms diploid number is 12, its haploid number is

The distribution of phenotypes for a typical polygenic trait can often be expressed as

What is the combined portions of Earth called in which all living things exist?

Organisms that have two identical alleles for a particular trait are said to be

The variable that is purposefully changed is called the _________ variable

An organism that cannot make its own food is called a(n)

How many chromosomes are in a normal human karyotype

What animals eat both producers and consumers?

Examples of fossils include preserved

Gregor Mendel used pea plants to study

Which of the following are shown in a karyotype?