Biology, 20.09.2019 19:30 jessezarate7129

Identify four threats to the biodiversity in your own environment and briefly explain each threat

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A threat to the biodiversity of my own environment is to the orcas or killer whales in southern BC in which only a total of about 80-90 individuals still exist and noise from freighters in the Strait of Georgia bothers them and if the Kinder Morgan pipeline goes through then tanker traffic plying their environment will increase 7 fold in which there will be a risk of a spill that could destroy them altogether. Also, our pine forests in BC are threatened by the pine beetle as a consequence of global warming since they do not get killed off as our winters do not get cold enough for long enough so they have run rampant eating and killing our pine trees by the forest. Another ocean species is the salmon which is threatened by overfishing and the building of hydroelectric dams and runs like the sockeye have been much lower than expected in recent years, On the Canadian east coast the Atlantic Cod has been decimated nearly to the point of extinction by overfishing and very poor management by the Canadian Dept of Fisheries and Oceans. A threat to an abundant species was the annihilation of most of the buffalo on our Canadian Great Plains by overhunting some of it deliberate to destroy the livelihood of the First Nations and Metis peoples.

Answer from: Quest

question#1

ans:

cell is the basic unit of organization of all living things. cells are often called the building block of life and it is the smallest unit of life. the study of cell is called cell biology. cell consists of cytoplasm enclosed within membrane, which contain bio-molecules such as proteins and nucleic acid.

two third of cell is water, which means that two-third of your whole body is water. the rest is the mixture of molecules, mainly proteins, lipids and carbohydrates.

question#2

ans:

organ:

an organ is a group of tissues specialized to form a functional unit. an example is the heart in animals.

organ system:

an organ system is a group of several organs whose functions are synchronized to release an effective action in a living organism. an example is digestive system.

question#3

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#4

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system—working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#5

our body works because of the interactions that happen between organs and organ systems.

for example:

the heart to regulate blood flow throughout the body. the blood carries oxygen and nutrients to the cells and carries carbon dioxide and waste away from the cells. body systems work together in maintaining a constant internal environment. when this balance is disrupted, the body systems may not function properly, and human health can suffer. you start to feel bad.

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links? do you have a link? i don't see anything?

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Identify four threats to the biodiversity in your own environment and briefly explain each threat...

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