Backyard Biology

The organisms in a typical backyard are likely to include bacteria, grass, shrubs, trees, insects, spiders, birds, and small mammals. Together, all these organisms make up -

• a kingdom

• a population

• a species

• a community

Tags

NGSS.MS-LS2-2

Bears are omnivores, bc they eat both animal and plant matter, such as salmon and blueberries. Which level of the food pyramid lacks that characteristics necessary to sustain Bears?

• the third step of the pyramid

• the top level of the pyramid

• the bottom level of the pyramid

• the second step of the pyramid

Tags

NGSS.MS-LS2-3

A group of organisms of the same species that live in the same area is called a(n)

• population

• ecosystem

• community

Tags

NGSS.MS-LS4-4

Herbivores are which of the following?

• secondary consumers

• decomposers

• producers

• primary consumers

Tags

NGSS.MS-LS2-3

Which phase best describes biodiversity?

• the number of species in an ecosystem

• the number of individuals in an ecosystem

• the amount of available energy in an ecosystem

• the amount of biomass in an ecosystem

Tags

NGSS.MS-LS2-5

An environmental change that removed which of these organisms from the ecosystem would cause the most instability in the ecosystem?

• Auklets

• Foxes

• Salmon

• Zooplankton

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following provide most of the energy in ecosystems?

• producers

• omnivores

• carnivores

• decomposers

Tags

NGSS.MS-LS2-3

What event is most likely to be associated with secondary ecological succession in a forest ecosystems?

• the rapid evolution of a number of animal species from one ancestor

• a meteor impact that kills every occupant of the ecosystem

• a forest fire that kills smaller plants and allows the improved growth of bushes and trees

• a volcanic eruption that destroys the soil in an ecosystem

Tags

NGSS.MS-LS2-4

Hawaii's lush tropical forests arose from a process of

• succession

• destruction

• predation

• regeneration

What characteristic of this ecosystem is best indicated from this graph?

• Species B was preferred as food over species A.

• Species B may replace species A in this environment.

• Species B was more abundant at the beginning of this time period than species A.

• Species B will reproduce more rapidly than species A.

Tags

NGSS.MS-LS2-2