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inn [45]
4 years ago
7

Compare and contrast at least two different ways human activity affects the ecosystem both positively and negatively

Biology
1 answer:
kozerog [31]4 years ago
8 0

Answer:

Got dis

Explanation:

When humans mass produce items for others to buy, those factories that make that stuff release carbon dioxide into the atmosphere which kills the ozone layer (the ozone layer basically protects everything on this planet from the suns dangerous UV rays). On the other hand humans try to help out the environment for example those cars that people use that use electricity and not fossil fuels as energy for the car and the fossil fuels have the same affect as the factories but the electricity does not release the fumes that the fossil fuel cars do. Hope this answers your question!

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Various types of plants use different strategies to optimally photosynthesize. A common strategy for plants on the forest floor
EastWind [94]

Answer:

light

Explanation:

The factor of photosynthesis that is maximized by the production of large, thin leaves that span over large areas is light.

<em>Light in the forest floor is limited due to the shade provided by the overstorey layers of the forest. As such, light becomes a limiting factor for photosynthesis for forest floor dwelling plants. In order to overcome this challenge, forest plants increase their leaf surface areas and thickness so as to increase light-gathering efficiency. </em>

5 0
3 years ago
Which of the following layers of the digestive tract surrounds the muscularis mucosae, consists of dense irregular connective ti
alexdok [17]

Answer:

this is the SUBMUCOSA

Explanation:

The wall of  the digestive tract contains 4 walls in addition to the submucosa

These are the muscularis  external ,(the external layers of muscles that contract s and relax  for propelling chime and chyle)

the mucosa

, and serous membrane. The mucous gland secrets Mucus for lubrication of the tubule.

the endoscopy is important for diagnosis and endoscopy therapy

it is also useful for identify the dept of tumor and other abnormalities.

3 0
4 years ago
Which one of the following statements about photophosphorylation is false?
Zepler [3.9K]

Answer:

C)The luminal side of the thylakoid membrane has a higher pH than the stromal side.

Explanation:

During the photophosphorylation, the electrons move through many electron carriers which allow the transport of hydrogen ions in the luminal side against the concentration gradient. This allows the increase in the Hydrogen ion concentration to the luminal side of thylakoid membrane and reduction in the hydrogen ion concentration of the stromal side.

Therefore due to the increased concentration of H⁺ ions in lumen during the photophosphorylation, the lumen has a lower pH than the stroma. During photophosphorylation, the pH of lumen decreases up to 4 and the pH of stroma increases up to 8. So the false option is C.

5 0
3 years ago
In your science fair project, you fed peanuts to
PtichkaEL [24]

Answer:

a and c

Explanation:

6 0
4 years ago
Read 2 more answers
Which of the following is not a freshwater ecosystem?
9966 [12]

Answer:

c

Explanation:

seas water isn't fresh water

4 0
3 years ago
Read 2 more answers
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