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Serhud [2]
3 years ago
5

(99 PTS) NEED HELP FAST ILL MARK BRAINLIEST AND RATE 5 STARS AND SAY THANK YOU

Biology
2 answers:
Soloha48 [4]3 years ago
5 0
Its a wind vane..........

sveticcg [70]3 years ago
4 0
That's a wind vane. Hope this helps.
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What evidence in a slice of bread showed the presence of gas?
LenaWriter [7]

Every slice of the bread, contains a number of blister like pores. These blister like pores suggests that the air or some gas might be present there. In case, the bread has no air, the surface of the bread must be smooth rather than rough.

The bread is formed by the fermentation of the sugar molecules present in the dough with the help of yeast. These blisters like structure on the bread is present due to the gas produced during fermentation.

6 0
3 years ago
These organisms obtain energy through chemosynthesis rather than photosynthesis
ASHA 777 [7]

Answer:

Autotrophs

Explanation:

Some rare autotrophs produce food through a process called chemosynthesis, rather than through photosynthesis. Autotrophs that perform chemosynthesis do not use energy from the sun to produce food. Instead, they make food using energy from chemical reactions, often combining hydrogen sulfide or methane with oxygen.

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Which of the following scenarios are examples of positive-feedback mechanisms? Check all that are correct.
solong [7]

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Option (1), (3) and (5).

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Positive feedback mechanism also exist in the environment that increases the causative effect of the environment. The environment can change the temperature, precipitation and other climatic conditions of the area.

The lack of moisture in Sahara desert and deforestation can cause the trees extinction. The temperature can be increased by the green house gases as the warm atmosphere causes evaporation. The snow gets melted due to increase in temperature and the ground becomes more darker.

Thus, the correct answer is option (1), (3) and (5).

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