A scientific theory is

The process by which organisms keep their internal conditions relatively stable is called

Salivary amylase is an enzyme in humans that breaks down starch. The optimum pH for this reaction is 6.7. The rate of this reaction would NOT be affected by which action?

How do lipids mainly function in living organisms?

What subunits of the molecule are shown?

During replication, the strands of a double-stranded DNA molecule separate from each other when a set of bonds are broken. What did these bonds join together?

During replication, which sequence of nucleotides would bond with the DNA sequence TATGA?

The scientist(s) responsible for the discovery of bacterial transformation is (are)

The two "backbones" of the DNA molecule consist of

When prokaryotic cells copy their DNA, replication begins at

The enzyme that unwinds DNA during DNA replication

This enzyme adds new nucleotides during transcription

This enzyme adds new nucleotides during DNA replication

How does RNA differ from DNA?

Using the chart, Which of the following codons signifies the end of translation?

Which of the chains of amino acids corresponds to the nucleotide sequence UCAAGCGUA?

In eukaryotes, functional messenger RNA molecules are made from

Which of the following describes how ALL consumers get their energy?

The total amount of living tissue at each trophic level in an ecosystem can be shown in a (an)

Nutrients move through an ecosystem in

An increase in the greenhouse effect causes and increase in

A relationship in which an organism is helped and another organism is neither helped nor hurt is called

Fires, hurricanes, and other natural distrubances can result in

The first organisms to repopulate an area affected by a volcanic eruption are called

The number of individuals of a single species per unit area is known as

The area inhabited by a population is known as its

The maximum number of organisms of a particular species that can be supported by an environment is called

The demographic transition is considered complete when

Which of the following human activities has NOT had an important role in transforming the biosphere to date?

The conversion of a once soil-rich area to an area of little or no vegetation is called

The concept of using natural resources at a rate that does not deplete them is called

The burning of fossil fuels is a direct cause of each of the following EXCEPT

In many cells, the structure the controls the cell's activities is the

Despite difference in size and shape, at some point all cells have DNA and a

What distinguishes a eukaryotic cell from a prokaryotic cells is the presence of

Cell membranes consist mainly of

Which of the following is true of ALL single-celled organisms?

The movement of water molecules across a selectively permeable membrane is known as

A substance that moves by passive transport tends to move

Which of the following are autotrophs?

The principle chemical compound that livings things use to store energy is

In addition to light and chlorophyll, photosynthesis requires

The leaves of aplant appear green because chlorophyll

The first process in the light-dependent reactions of photosynthesis is

The light-independent reactions of photosynthesis are known as the

The process that releases energy from food in the presence of oxygen is

The first step in releasing the energy of glucose in the cell in known as

The net gain of energy from glycolysis is

The Krebs cycle takes place within the

The electron transport chain uses high-energy electrons from the Krebs cycle to

Because fermentation takes place in the absence of oxygen, it is said to be

The process carried out by yeast that causes bread dough to rise is

During heavy exercise, the buildup of lactic acid in muscle cells results in

The process that increases genetic diversity within a population is

Sister chromatids are attached to each other at an area called the

In plant cells, what forms midway between the divided nuclei during cytokinesis

Which of the following is the correct order of mitosis

Which type of cell has the potential to develop into any type of cell?

A situation in which a gene has more than two alleles is known as

Unlike mitosis, meiosis in male mammals results in the formation of

Suppose that an organism has the diploid number 2N=8. How many chromosomes do this organism's gametes contain?

Which of the following disorders can be observed in a human karyotype?

A normal human diploid zygote contains

Organisms that contain genes from other organisms are called

When cell transformation is successful, the recombinant DNA

Which of the following characteristics is often genetically engineered into crop plants?

To separate DNA fragments from one another, scientists use

Genetic markers allow scientists to

Which of the following ideas proposed by Lamark was later found to be incorrect?

An inherited characteristic that increases and organisms's ability to survive and reproduce in its specific environment is a (an)

Structures that have different mature forms but develop from the same embryonic tissue are called

The combined genetic information of all members of a particular population forms a

The type of selection in which individuals of average size have greater fitness than small or large individuals have is called

A random change in a population's allele frequency is known as

Temporal isolation occurs when two different populations

When two populations no longer interbreed, what is the result?

The science of naming and grouping organisms is called

Solely from its name, you know that Rhizopus nigricans must be

A specific trait that is used to construct a cladogram is called a

A branch of a cladogram that consists of a single common ancestor and all the descendants of that ancestor is called

The three domains are

Which of the following kingdoms includes only heterotrophs?

Which of the following is a characteristic specific of primates?

How many hominine species exist today?

Hominoids include all great apes. The hominoids in the lineage that led to humans are called