Question

Which organisms would likely be the most difficult to kill?

A. endospore

B. staphylococci

C. streptococci

Burning fossil fuels and deforestation have resulted in an increase in the concentration of _________ in the atmosphere, which may be causing the global climate to change.

A. O3

B. DDT

C. CO2

D. NO2

In a food chain, which organisms are in the first trophic level, supporting all of the other levels?

A. producers

B. primary consumers
C. secondary consumers
D. tertiary consumers

Which terrestrial biome is characterized by mild, rainy winters; long, hot, dry summers; and the presence of dense, spiny evergreen shrubs?

A. chaparral

B.tundra

C.savanna

D. desert

Answer 1

Which organisms would likely be the most difficult to kill?

A. endospore

Endospore is a dormant tough structure that bacterium transforms into in order to survive a harsh environmental condition.

Burning fossil fuels and deforestation have resulted in an increase in the concentration of _________ in the atmosphere, which may be causing the global climate to change.

C. CO2

CO2 is a green house gas which can trap heat in the earth's atmosphere and stops it from getting out keeping the earth warm. Increase in this gas causes increase in global temperature resulting in global warming

In a food chain, which organisms are in the first trophic level, supporting all of the other levels?

A. producers

Producers are normally the photosynthetic organisms like plants or green algae which can trap the light energy and use it to make food ( glucose)

Which terrestrial biome is characterized by mild, rainy winters; long, hot, dry summers; and the presence of dense, spiny evergreen shrubs?

A. chaparral