Semester 2 Advanced Bio

In the nitrogen cycle, the bacteria that replenish the atmosphere with N2 are _____.

• Denitrifying bacteria

• Nitrogen-fixing bacteria

• Nitrifying bacteria

• Ammonifying bacteria

Carbon dioxide is returned to the atmosphere primarily by

• consumption by animals

• combustion and cellular respiration by consumers

• elimination of waste by animals

• photosynthesis by producers

Carbon cycles through the biosphere in all of the following processes EXCEPT

• photosynthesis

• transpiration

• burning of fossil fuels

• decomposition of plants and animals

Nitrogen fixation is carried out mainly by

• humans

• plants

• animals

• bacteria

Which of the following steps of the water cycle is the only step that has to have living organisms in order to happen?

• Transpiration

• Condensation

• Evaporation

• Precipitation

A group of eagles living around Lake Tahoe would be considered a (n) ____.

• abiotic factor

• population

• community

• ecosystem

Fish, their predators, and the water, sunlight, and plants that they rely on would be considered a (n) _____.

• abiotic factors

• population

• community

• ecosystem

Biologists use dichotomous keys to

• evaluate the importance of characters

• estimate the degree of difference between organisms

• analyze evolutionary relationships subjectively

• classify and name organisms

If an organisms divides and produces an exact copy of itself, the organism

• has reproduced sexually

• has reproduced asexually

• must have a virus and is infecting its own cells

• has reproduced through the process of meiosis

Identify the correct sequence sequence from least inclusive (aka most specific) to most inclusive (aka most general.)

• Kingdom, class, genus, species, order, phylum, family

• Species, genus, family, order, class, phylum, kingdom

• Kingdom, phylum, class, order, family, genus, species

• Kingdom, order, class, phylum, genus, family, species