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JulsSmile [24]
3 years ago
7

PLS HELP IM TIMED

Biology
1 answer:
tia_tia [17]3 years ago
4 0

Answer:

b

Explanation:

On Earth, human activities are changing the natural greenhouse. Over the last century the burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.

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Bonnie is preparing dinner and begins to wonder why cutting onions always makes her cry. Using the scientific method, she decide
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Answer: c. If you cut an onion near a person, then his/her eyes will always begin to produce tears

Explanation:

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Which of these choices is the cytoskeleton's main structure? It provides support, structure, and
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Answer: The answer is B
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Looking at the image of the freshwater lake ecosystem in the reading, can you name biotic and abiotic factors in this specific e
atroni [7]

Answer:

Biotic factors include: Fish (phytoplankton-eater, zooplankton-eater, predator)

, Crayfish

, Zooplankton

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Abiotic factors include: Sunlight, Rainfall, Sedimentation, Weather, Minerals, Temperature.

Changes that would impact the biotic factors include:

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Explanation:

An ecosystem is composed of biotic and abiotic factors. Abiotic factors are non-living environmental factors such as water, air, soil, sunlight, and minerals. In aquatic ecosystems, abiotic factors include substrate type, water depth, nutrient levels, temperature, salinity, and waterflow. Biotic factors are the living organisms in the ecosystem and they include animals, birds, plants, fungi, etc.

In the image of the freshwater lake ecosystem given,

Biotic factors include: Fish (phytoplankton-eater, zooplankton-eater, predator)

, Crayfish

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Abiotic factors include: Sunlight, Rainfall, Sedimentation, Weather, Minerals, Temperature.

Changes that would impact the biotic factors include:

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Human activities: such as overfishing, rechanneling of the water for purposes such as irrigation, domestic or industrial use, or dredging of the bottom of the lake.

8 0
3 years ago
Read 2 more answers
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This is because there are many organelles inside a cell and  a collection of same cells that creates tissues, a collection of tissues form organs, to carry out a particular function, and a collection of organs working together is an organ system. I think this is what they're after as I had a similar question a little while ago.


5 0
4 years ago
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Most of the energy in the United States comes from:
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