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Ecosystems can exist together because of:

1 Species inbreeding, niche limiting factors, exceeding carrying capacity
2 Photosynthesis, pollution, overpopulation
3 Biodiversity, symbiotic relationships, evolution

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Related questions

Chapters 3 and 4- Critical Thinking and Discussion Questions

Answer the following questions for Chapter 3:

1.Compare and contrast the history of bacteria and the history of the human species.

2. What are some factors that might cause microclimates to develop within larger ecosystems?

Answer the following questions for Chapter 4:

3. Some people assert that human population growth is the sole environmental problem affecting the planet. Do you agree? Why or why not?

4. Do you think that buying greener products has a net positive effect on limiting climate change, reducing pollution, preserving biodiversity, and so forth? Or do you think that buying biodegradable, nontoxic, and recyclable products simply spurs more consumption?

6. What are your thoughts on Consumerism?

1. At 50% of field capacity, the matric potential of clay soils is:

A. less negative than loam and sand

B. more negative than sand and less negative than loam

C. more negative than loam and sand

D. less negative than sand and more negative than loam

E. matric potential is equivalent for all soils at the same water content

2. Factors that affect percentage base saturation of soil include (choose any/all that apply):

A. clay content

B. parental material

C. total precipiation

D, soil water content

E. depth of O horizon

F. soil microbial respiration

G. soil pH

3.Which of the following statements about symbiotic nitrogen fixation is true (select any/all that apply)?

A. It requires a symbiotic association between a plant and either a prokaryote or fungus.

B. it is only found in the plant family Fabaceae

C. It can be an important source of N to soils and protein to herbivores.

D. It occurs in specialized root structures of the host plant.

E. it is found in all species of Fabaceae

F.. it is found throughout the plant kingdom

G. Symbiotic N-fixers require photosynthetic carbon from their hosts

1) Which of the below is NOT true?

A) A single hurricane can blow over 10% of the carbon sequestered by all US forests in a single year.

B) A managed forest can have a substantially greater carbon sequestration rate than an unmanaged forest.

C) Oak /Hickory forests have more carbon stored within them (carbon stocks) than Pine forests do.

D) Climate change may disrupt predator-prey relationships and this may lead to insect and/or disease outbreaks in forest ecosystems.

E) Species richness typically increases with increasing temperature

2) Which of the below is NOT true?

A) In the NE United States, the industrial sector releases the greatest amounts of CO2.

B) Silviculture is the art and science of managing forests

C) Resiliency of a forest involves its ability to regain normal function after a disturbance

D) Forest managers should plan on cultivating mixed species stands instead of single species stands

E) Currently, the level of CO2 in the atmosphere is greater than 380 ppm

3) Which of the below is NOT a negative aspect of plantation farming of trees?

A) very little carbon sequestration occurs

B) low forest resiliency

C) watershed health may be threatened

D) low biodiversity

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