Principles and Applications of Biology Test 1

An ecosystem becomes more stable as the diversity of the community

increases

response

is the systems reaction to the stimulus.

Many rickettsia are:

pathogens

Malaria is caused by:

protozoan

Sexual reproduction results in a variation of traits in the offspring of successive generations.

true

The stability of a community is related to the diversity of organisms in the ecosystem.

true

An excellent tool for testing a theory is:

verifying deductive predictions

Which of the following is a good scientific hypothesis?

If a plant is given less oxygen than what is present in the air, the plant will grow more slowly.

Sex chromosome abnormalities are more common than autosomal abnormalities because:

Sex chromosome abnormalities are more common than autosomal abnormalities because:

A "producer" in an ecosystem is:

a plant

Which of the following is a reliable source of background information for researching a problem?

a scientific journal

In an experiment, the hypothesis is that a red shirt fades faster when washed more frequently. This hypothesis is _____.

all of the above

(Select all that apply.) Ecosystems _____.

can be small can be large have nonliving parts

DNA _____.

contains coded information for the creation of proteins

The component of a homeostatic control system which transmits the response is called the

effector

A person surviving a disease acquires what is called passive immunity.

false

All protozoa are also pathogens.

false

All technological advances in biology have been used to improve humanity.

false

Science is not based on inquiry, but rather on facts.

false

When properly conducted, the scientific method can ultimately prove or disprove any problem of inquiry.

false

What is the purpose of the chemical transmitter in a control system?

to enter a cell at a specific receptor site,cause an internal cell reaction which maintains homeostasis

Rapid population growth is not the main cause for hunger in the world.

true