Carrying capacity

What is a biotic or Abiotic factor that restricts the growth of the population

限制动植物数量增长的因素叫做：

• carrying capacity

• limiting factor

• abiotic factor

• biotic factor

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

What is the carrying capacity of the graph?

• around 500

• more than 500

• less than 500

• around 600

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is the carrying capacity of the following graph?

• 1000

• 8000

• 800

• 600

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What will happen if all of the frogs in a population die?

如果种群中的青蛙都死了会怎样？

• The frogs' predators will decrease and the frogs' prey will increase

  青蛙的捕食者数量会下降，青蛙的猎物数量会上升。

• The frogs' predators will increase and the frogs' prey will decrease. 青蛙的捕食者会上升，它的猎物会下降。

• We better all pray because there isn't anymore frogs.

  还是祈祷吧，因为没有青蛙了

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Food, water, sunlight, shelter, and space are resources that can be__________.

• limiting factors

• wet

• messy

• found in rocks

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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 interaction is depicted here? 两只北极狐和一只北极熊在争一只海狮的尸体。一只狐狸吸引熊的注意力，另一只在吃。这里面的关系有什么？

• Predator-Prey Relationships

• Competition

• Parasitism

• Natural disaster

Tags

NGSS.MS-LS2-2

A group of elephants gets stuck in mud at the edge of the river from a recent mud slide. What is the limiting factor to the elephant population? 一群大象陷入了泥沼中，这里的限制因子是什么？

• Predator-Prey Relationships

• Natural Disaster

• Competition

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

When resources are not available a population will _____________ in size.

• increase

• decrease

• stay the same

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What happens if a population grows past its carrying capacity? 种群数量超过承载能力会怎样？

• The population starts to die off

• The entire species will go extinct

• The carrying capacity just increases

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field? 如果灾害破坏了田地中的大麦，这对吃大麦的鸟类有什么影响？

• The bird population would stay the same

• The bird population would infinitely increase

• The bird population would decrease

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4