Which of the following is NOT a part of how scientists works?

Biology is the study of

Which of the following is NOT a characteristic of living things?

Which of the following characteristics of living things best explains why some birds fly south for the winter?

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

Which of the following terms includes all the others

Which level of organization includes all of the other levels?

In the metric system, the basic unit of length is the

The basic unit of mass in the metric system is the

To observe a small, living organism, a scientist might use a(an)

The smallest units are considered to be alive are

The chemical reactions through which an organism builds or breaks down materials as it carries out its life process is called

A well tested and supported explanation that unifies a broad range of observations is call a

A possible explanation for a set of observations, also know as an educated guess, is called

A decimal system of measurement is the

In the scientific method, after "stating the problem," the next step is to

After the second step in the above question, the next three steps in the proper order are

The final two steps in the scientific method are

Which of the following makes up a molecule of water?

What type of electron is available to form bonds?

Which of the following is NOT a function of proteins?

In chemical reaction, atom are

What is the process that changes one set of chemicals into another set of chemicals?

What is the term used to describe the energy needed to get a reaction started?

Chemical reactions that release energy, such as heat, light or sound

A substance that speeds up the rate of a chemical reaction is called a (an)

Carbohydrates, lipids, proteins, and nucleic acids are collectively known as

In the reaction 6CO2 + 6H2O (+ sunlight) ---> C6H12O6 + 6Co2 the reactants are

In the reaction 6CO2 + 6H2O (+ sunlight) ---> C6H12O6 + 6Co2 the products are

A group of cells that perform similar functions is called a(an)

An organ system is a group of organs that

The proper order of the levels of organization are

The building blocks of RNA and DNA (nucleic acids) are called

Which of the following organic compounds is the main source of energy for living things?

A monosaccharide is a

The branch of biology dealing with interactions among organisms and between organisms and their environment is called.

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

All of the members of a particular species that live in one area are called a(an)

Green plants are

What is the original source of almost all the energy in most ecosystems

The algae at the beginning of the chain in Figure 3-1 are

An organism that uses energy to produce its own food supply from inorganic compounds is call a(an)

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

Organisms that obtain nutrients by breaking down dead and decaying plants and animals are called

What is an organism that feeds only on plants called?

All the interconnected feeding relationships in an ecosystem make up a food

What animals eat both producers and consumers

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

An interaction in which one organism captures and feeds on another organism is called

The series of predictable changes that occurs in a community over time is called

Which of the following is an autotroph

Which of the following us NOT an example of a heterotroph?

A specialized structure that performs important cellular functions within a eukaryotic cell is

A student is collecting the gas given off from a planet in bright sunlight at a temperature of 27*C. The gas being collected is probably

Photosynthesis uses sunglight to convert water and carbon dioxide into

The reaction, 6CO2 + 6H2O (+sunlight) ---> C6H1206 + 6O2 has the 6's in front of three of the molecules because of the Law of Conservation of

Which of the following is released during cellular respiration?

What is the correct equation fro cellular respiration?

Cellular respiration releases energy by breaking down

Which of these is a product of cellular respiration?

Photosynthesis is to chloroplasts as cellular respiration is to

Which of the following is responsible for recycling nutrients like carbon and nitrogen back to the ecosystem?

Oak trees convert sunlight into usable energy. This energy is stored in oak trees as which substance?

If the population of an organism is removed from their level of the food pyramid, the other levels will

The addition of water to a chain of organic polymers

When water is removed from the reactant organic molecule

Homeostasis is the ability

A deer in the woods gains mass (weight) by

The work of Schleiden and Schwann can be summarized by saying that

Which cell structure contains the cell's genetic material and controls the cell's activities?

Prokaryotes lack

Eukaryotes contain

The main function of the cell wall is to

which organelles help provide cells with energy?

Which organelle would you expect to find in plant cells but not animals cells?

The structure in Figure 19-1 represents a(an)

All viruses are made of proteins and

Invasive species species in an ecosystem

Which of the following factors best describes the fluctuations of the wolf-moose populations on Isle Royale?

A controlled experiment allows the scientist to isolate and test

Which is NOT a unit of measurement in the metric system

The space surrounding the nucleus of an atom contains

The nucleus is made up of

When hydrogen and oxygen combine to form water, water is

When salt is dissolved in water, water is the