Population Growth & Ecological Relationships Do Now

Remoras are small fish that attach to sharks but do not harm them. When sharks tear prey apart, remoras eat the leftovers. What relationship do remoras have with sharks?

• mutualism

• parasitism

• predator-prey

• commensalism

What type of growth is shown in the diagram?

• exponential growth
• logistic growth 
• predator-prey cycle
• boom-bust curve

Tags

CCSS.HSF-IF.C.7E

What type of growth curve is pictured?

• exponential 
• logistic
• predator-prey
• invasive

Tags

NGSS.MS-LS2-1

What kind of limiting factor is disease?

• density-independent

• density-dependent

What kind of limiting factor is a flood?

• density-independent

• density-dependent

Logistic growth has 3 phases. In Phase 1, the population grows rapidly. In Phase 2, population grows slowly. In Phase 3, growth stops. What causes growth to stop in the 3rd phase of logistic growth?

• Emigration
• Immigration
• Exponential Growth
• Carrying Capacity

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-6

Which limiting factor is independent of the number of individuals in a population?

• competition
• parasitism/disease
• stress
• natural disasters

What causes competition to occur in an environment?

• Good conditions make resources plentiful.

• Organisms struggle for a limited resource.

• Members of a population have different roles.

• A population falls below the environment’s carrying capacity.

Tags

NGSS.MS-LS2-1

A cuckoo may lay its eggs in a warbler's nest. The cuckoo's young will displace (or move) the warbler's young and will be raised by the warbler. What type of ecological relationship is this?

• Parasitism

• Commensalism

• Predation

• Competition

A flea feeds on a mouse's blood to the mouse's detriment (or harm). What type of ecological relationship is this?

• Predation

• Parasitism

• Commensalism

• Mutualism