Eco C: Population interactions within an ecosystem

An area of forest that experiences very little change in species composition is a

• Climax community

• Primary succession

The amount of oxygen in a fish tank is a _______ that affects the number of fish that can live in the tank

• Tolerance zone

• Limiting factor

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

________ describes the events that take place on a hillside that has experienced a destructive mudslide

• Ecological succession

• Secondary succession

Lack of iron in the photic zone of the open ocean restricts the size of plankton populations. Iron is what kind of factor for marine plankton?

• Distribution

• Tolerance

• Limiting

• Biotic

Which is a place you most likely would find pioneer species growing?

• Climax forest

• Coral reef

• Disturbed grassland

• Newly formed volcano

Which statement describes the first changes in a forest that would follow a forest fire?

• A climax community is established

• New plants grow from seeds that the wind carries to the area

• New soil forms

• Pioneer species are established

Which limiting factor is dependent on the density of the population?

• Contagious fatal virus

• Dumping toxic waste in a river

• Heavy rains and flooding

• Widespread forest fires

The role or job an organism has in its habitat

• Abiotic factor

• Niche

• Habitat

The carrying capacity of an environment is determined by the availability of

• Energy

• Water

• Oxygen

• Nutrients

• All of the above

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Concerning the Competitive Exclusion Principle, which of the following statements are true?

• This principle usually involves interspecific competition for the same resources

• Resources ultimately get shared equally between the two competing species

• One species, which is better suited to the niche, usually outcompetes the other and pushes it to extinction or another niche

• Both a and c are true statements