Limiting Factors

Two arctic fox are fighting with a polar bear for a sea lion carcass. One fox distracts the bear while the other eats. What type of limiting factor is the polar bear?

• Predator-Prey Relationships

• Competition

• Herbivory Effect

• Weather

Tags

NGSS.MS-LS2-1

A group of elephants gets stuck in mud at the edge of the river from a recent mud slide. A lion waits for an elephant to get tired before it attacks. What is the limiting factor to the elephant population?

• Predator-Prey Relationships

• Natural Disaster

• Herbivory Effect

• Competition

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

A duck population is breeding at exponential rates. The snakes that hunted them have been collected by fur collectors. They make boots from python snake skin. What is the limiting factor to the snakes?

• Ducks

• Predator-Prey

• Exponential Growth

• Humans

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A duck population normally begin migrating south right after the last rain of the late summer season. Suddenly, they’re migrating much earlier. The climate has been changing far too often which is altering the effects of their magnetite.

• Predator-Prey Relationships

• Weather

• Herbivory Effect

• Competition

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

One of the wolf populations leaves the forest. Over time, bushes, trees and moisture begin to leave as well. There is an effect on the producer populations because the herbivores are overgrazing the land. What is the limiting factor to the producer?

• Competition

• The wolf

• Herbivory Effect

• Mutualism

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

One of the wolf populations begins to compete with a new bear population for the same herbivores. Over time, bushes, trees and rivers improve in numbers. There is an effect on the producer populations. What is the limiting factor to the herbivore?

• Predator-Prey Relationships

• Herbivory Effect

• Competition

• Wolves and Bears

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Small krill sweep the river bottom rocks for debris and muck. Next, the krill is suddenly swooped up by a small fish. The small fish then gets eaten by a salmon. A week after the bear eats the salmon, it begins to have symptoms. Over time the bear weakens from a botfly infection. What is the limiting factor to all the consumers?

• Predator-Prey Relationships

• Parasites

• Disease

• Competition

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A honey-badger digs the ground tunnels in search for snakes. In one occasion, the badger finds a snake and competes with it. The badger leaves scratches and bite marks on the snake before it escapes. After twenty-four hours the snake dies. What is the limiting factor to the snake?

• Predator-Prey Relationships

• Competition

• Disease

• Predation

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

The wolf population gets reintroduced to the ecosystem. There is enough deer to go around, so they eat comfortably. The wolf population begins to grow out of control with so much food. The different wolf families then begin to compete for the few caves that exist. Not everyone has good shelter so some have to sleep in the forest floors. What is the limiting factor to the wolves?

• Overcrowding

• Competition

• Weather

• Shelter

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The wolf goes extinct, and the deer population has no predator to worry about. They graze the land. Because there is no more food. Some of the deer begin to bite at each other, while others die of starvation. What is the limiting factor to the deep population?

• Competition

• Overcrowding

• Predator-Prey Relationships

• Herbivory Effect

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4