How do scientists count a species population?
o
a. add up the individuals who leave an area or die.
o
b. add up the individuals who come into an area because of
reproduction or immigration,
o
c. add up the individuals who come into an area and subtract those
who leave the area.
o
d. add up the biodiversity in an area.

Why is this statement not a hypothesis? sunflowers require soil and plenty of sunlight and water to grow and thrive. a. it is a well-known fact. b. it is a proven theory. c. it is not falsifiable. d. it is difficult to test.

Which of the following discoveries would be most likely to cause a scientific paradigm shift? a. the discovery of more rings around uranus b. the discovery of a new pathogenic virus transmitted by mosquitoes c. the discovery that a dormant volcano is showing signs of activity d. the discovery of a new species of salamander in the amazon rainforest e. the discovery that excess heat is radiating from the center of the earth and causing global climate change

Which scholars explained the roles of the public and private sectors by comparing it to maneuvering a boat?