Biology 1A Exam

Phosphorus is very important in living things because living organisms need phosphorus to

Which of the following is true about non renewable resources?

A personal preference or point of view is

The movements of organisms into a range is called

__________ are a nonnative species that have dramatically affected the Miss. River and are a potential threat to GL

Nitrogen fixation is carried out primarily by

What is one difference between primary and secondary succession?

Introduced species can threaten biodiversity because they can

What is one environmentally negative consequence of the Industrial Revolution?

Developer is building a new development. Which of the following plans would be LEAST harmful to the environment?

Only 10% of the energy stored in an organism can be passed onto the next trophic level. Where does the remaining go?

How are plants in a sunny mountain meadow and the bacteria at the rim of a volcano alike?

How do most primary producers make their own food?

Which of the following describes a population as its decreases?

What is at the base of all ecological pyramids?

Biodiversity is valuable partly because it

What is the term for each step in the transfer of energy and matter within a food web?

The various growth phases through which MOST populations go are represented on

After analyzing data from observation or experimentation a scientist will

Science is best described as a

How do scientific theories compare to hypotheses?

The number of different species in the biosphere or in a particular area is called

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

A hypothesis

How does studying science help you be a better member of society?

Plants are

The work of scientists usually begins with

Information gathered from observing a plant grow 3 cm over a two-week period is called

How are species diversity and genetic diversity different?

Introduced species can threaten biodiversity because they can

During a controlled experiment, a scientist isolates and tests

A location that has 170 species of birds has greater ___________ than a location that has 100 species of birds.

A toad is introduced to an environment with no natural predators, the toad population would most likely

The movements of energy and nutrients through living systems are different because

Which of the following is true of an ecological pyramid?

What are two kinds of ecological pyramids?

A major factor that negatively affects biodiversity is

Based on your observations, you suggest that the presence of H2O could accelerate the growth of bread mold. This is

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

When rabbits have no natural predators and begin to crowd the native animals out of their habitats, that is called

One of the greatest threats to biodiversity is

An example of human-caused disturbance is