Bellringer 12

Which term means:

the specific role an organism plays within an ecosystem

• community

• habitat

• Niche

Which prefix means to take water out of hydration

• hydro-

• de-

• anti-

Which numbered column in the chart contains 4 terms that correctly identify the most likely types of organisms that could be found at each level of the 4 levels in the pyramid

• 1

• 2

• 3

• 4

These events can be best described as an example of:

• a feedback mechanism that maintains homeostasis

• a cycle that regulates cellular communication

• an immune system response to increasing heart rate

• a body system regulating hormone production

Tags

NGSS.MS-LS1-3

Which statement about competition in ecosystems is correct?

• Organisms compete most when they occupy different niches and resources are plenty

• Individuals need not compete, because resources such as water and food are always plentiful in ecosystems

• Organisms that compete successfully will survive, reproduce, and pass on their traits to offspring

• competition usually results in the extinction of a species, ensuring the survival of other species.