Final Exam Garcia December 2017

The algae at the beginning of the food chain are

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

Solutions that contain concentrations of H+ ions lower than pure water:

A controlled experiment allows the scientist to isolate and test.

What must occur in a population for it to grow?

An organism's niche is

In a logistic growth curve, exponential growth is the phase in which the population

Information gathered from observing a plant grow 3 cm over a 2 week period results in

The reactants of enzyme-catalyzed reactions are known as:

A scientific theory

Which of the following is NOT likely to be a limiting factor on the sea otter population?

I hear the pitter patter on the roof, I conclude it must be raining. I have just made an:

The pH of rainfall in NY shows the pH of rain varies 4.22 to 4.40. Which has the most rain?

What is happening in a population as it decreases?

How many students were able to find materials after 20 minutes?

When salt is dissolved in water, water is the

What was the control (constant) in the experiment?

In a solution, the substance that dissolves another substance is called

The building blocks of carbohydrates are

A scientific fact is

A law in science

Which of the following descriptions about the organization of an ecosystem is correct?

Each of the following is a density-dependent limiting factor EXCEPT

Hydrogen bonds form because of which property of water?

Which are two ways a population can decrease in size?

What is the label of the x axis?

A substance that controls the pH of a solution is called a

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

How many single bonds can oxygen make?

Which of the following is NOT a goal of science?

The elements or compounds that are formed during a chemical reaction are known as :

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

When organisms move out of the population, this is known as

To which group of macromolecules does this molecule belong?

The building blocks of nucleic acids are

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

A substance with a pH of 8 would be a

Which of the following is NOT one of the factors that play a role in a population growth rate?

What was the independent or manipulated variable in this experiment?

In a solution, all the components are

How many single bonds can nitrogen make?

Water molecules are polar, with the

What is the dependent variable in the hypothesis?

Enzymes affect the reactions in living cells by changing the

Which of the following is a density -independent limiting factor?

Science differs from other disciplines, such as history and the arts, because science relies on

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

A hypothesis is

How many single bonds can carbon make?

In a solution, the substance that is dissolved is called the

In a substance with a pH of 7, you would expect to find:

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

What is the control (constant) in the hypothesis?

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

All of the members of a particular species that live in one area recalled a(n)

What was the dependent or responding variable in the experiment?

The building blocks of lipids are

Which of the following does NOT require sunlight to live?

A biotic or an abiotic resource in the environment that causes population size to decrease is a

What is the independent variable in the hypothesis?

All of the following are limiting factors EXCEPT

When individuals in a population reproduce at a constant rate, it is called

Branch of biology dealing with interactions between organisms and their environment is called

Plants are

How many single bonds can hydrogen make?

What is the label of the Y-axis?

An advantage for a scientist using the metric system is that

The elements or compounds that enter into a chemical reaction are known as:

Which of the following statements is true about catalysts?

Suspensions are mixtures

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

The building blocks of protein are

What would be the molecular formula of this molecule?

Which axis represents the dependent, corresponding variable?