help me 1 hour help me

Sigchi4life
Category:
Science
Price: $5 USD

Question description

Population density is defined as

a.

an approximation of a number, based on reasonable assumptions.

b.

the number of individuals of a population in a specific area.

c.

the number of individuals moving into a population.

d.

the smallest level of ecological organization.


Please select the best answer from the choices provided



An early winter frost preventing further growth in a tomato garden is an example of

a.

carrying capacity.

b.

a limiting factor.

c.

a biotic factor.

d.

indirect observation.


Please select the best answer from the choices provided



Observing animal tracks is an example of directobservation, which is used to estimate population size.


Please select the best answer from the choices provided



The carrying capacity is the smallest number of individuals in a population that can live in one area.


Please select the best answer from the choices provided



Why is it important to study whole ecosystems?

a.

It is more interesting

c.

Individual pieces are independent

b.

All parts of an ecosystem are interdependent

d.

Only the primary producers are important


Please select the best answer from the choices provided



If you count 20 beetles in a garden measuring 5 square meters, the population density of the beetles is

a.

100 beetles per square meter.

b.

20 beetles per square meter.

c.

5 beetles per square meter.

d.

4 beetles per square meter.


Please select the best answer from the choices provided



The samplingmethod of estimating involves multiplying the number of organisms in a small area to find the number in a larger area.


Please select the best answer from the choices provided



Population size generally increases if the birth rate is greater than the death rate.


Please select the best answer from the choices provided




A group of zebras breaking off from a herd decreases the size of the herd population through immigration.


Please select the best answer from the choices provided



When determining population size using direct observation, every individual in a population is counted.


Please select the best answer from the choices provided



Studypool has helped 1,244,100 students
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1822 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors