What do ecosystem have that is different than the levels that come before it.

The text discusses the concepts of conservation and preservation, and provides examples of how human actions can help preserve and conserve natural resources. Here are the main points of the text:

1. Conservation and Preservation:
- Conservation refers to the wise use of resources and is aimed at preventing resource depletion or extinction.
- It involves controlled and monitored activities, like hunting, based on ecological knowledge.
- Conservation areas often offer recreational opportunities such as hunting and fishing.
- Preservation refers to the protection of resources, particularly endangered species or habitats.
- Wildlife preserves are areas with limited human presence and are monitored to ensure protection.

2. Organizations involved in Conservation and Preservation:
- The World Wildlife Fund is a global organization dedicated to preserving Earth's biological diversity and monitoring pollution and wasteful consumption.
- The Canadian Wildlife Fund advocates for the protection of wild species and places in Canada.
- Manitoba Conservation is a provincial department that enforces hunting laws, funds research projects, protects non-game species, and educates the public.

3. Habitat Preservation:
- Habitat refers to the specific area where an organism lives and depends on for survival.
- Destruction or disruption of habitats is a major threat to species survival.
- Tropical ecosystems are particularly at risk due to land clearance for agriculture, leading to soil erosion and habitat destruction.
- Grassland ecosystems in North America were transformed for agriculture, resulting in the loss of native species.
- Polar habitats are also affected by rising global temperatures, leading to a decrease in ice floes and impacting species like polar bears.

4. Importance of Habitat Preservation:
- Habitat preservation aims to protect critical areas necessary for species survival.
- Preserving habitats helps protect the existence of species and maintains the beauty of natural ecosystems.
- Disruption in one organism's habitat can have ripple effects through food chains and ecosystems.

Overall, the text emphasizes the importance of conservation and preservation efforts to protect natural resources, ecosystems, and biodiversity. It highlights the need to understand the impact of human actions on habitats and the potential consequences for various species. By preserving habitats, we can ensure the long-term survival of many wild species and maintain the balance of ecosystems.

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Answer: 0.0045 mol
Explanation: Convert 30 ml to l: 30 mL = 0.03 L
Molarity = mol/l
mol = molarity * L
mol = 0.15 * 0.03 = 0.0045 mol

Answer:

A

Step-by-step explanation:

The input force is 50 N. But it will not create not any change. No mechanical advantage is observed.

Answer: b. Fiona is correct because the diagram shows two individual simple machines.

Explanation:
A mechanical device using which we can change the direction or magnitude of force applied is known as simple machine.
For example, in the given diagram there are two individual simple machines.
The machine helps in changing the direction or magnitude of force applied by the man. As a result, it becomes easy for him to carry different things easily from one place to another.
Thus, we can conclude that the statement Fiona is correct because the diagram shows two individual simple machines, is correct.

Answer:

52.6 gram

Step-by-step explanation:

It is clear by the equation 2(27+3×35.5)= 267 gm of AlCl3 reacts with 6× 80 = 480 gm of Br2 . So 29.2 gm reacts = 480× 29.2/267= 52.6 gm

15 moles.Explanation:Hello,In this case, the undergoing chemical reaction is:Clearly, since carbon and oxygen are in a 1:1 molar ratio, 15 moles of carbon will completely react with 15 moles of oxygen, therefore 15 moles of oxygen remain as leftovers. In such a way, since carbon and carbon dioxide are also in a 1:1 molar ratio, the theoretical yield of carbon dioxide is 15 moles based on the stoichiometry:Best regards.