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Olin [163]
3 years ago
9

How many endangered species are there

Biology
1 answer:
GarryVolchara [31]3 years ago
4 0
More than you would think .. i know that much
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The term andropause, or male menopause, is sometimes used to refer to _____.
ss7ja [257]

The answer is the gradual decrease in sexual activity in some males as a result of illnesses and losses. <span>Male menopause involves a drop in testosterone making in men who are age 50 or older. It’s often associated with hypogonadism. Both conditions involve lowered testosterone levels and similar symptoms.</span>

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The monomers used to synthesize proteins
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<span>The monomers used to synthesize proteins are called amino acids</span>
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4 years ago
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Scientists now know how much carbon dioxide was present in the atmosphere as far back as 800,000 years ago. How did they obtain
sertanlavr [38]

Answer:

Ice core records.

Explanation:

  • The origin of man took place about 200,000 years ago and looking at the records that are stored in the ice cores before the existence of man which were found by the deep drilling of the antarctic and Greenland shows that how the temperatures have changed and as the example of the carbon in the air.
  • As in the 800,000 years go the Carbon dioxide levels were on average of 170 to 280 ppm and now they have crossed the 400 ppm mark also at that time the sea levels were high as 80 feet and now are more than 100 feet.
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3 years ago
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Name at least 4 gases in the atmosphere besides oxygen and nitrogen
Virty [35]
78.08% nitrogen 
<span>20.95% oxygen </span>
<span>an average of 0.247% water vapour (very variable) </span>
<span>& approximately 1% of other gases </span>

<span>These other gases are the noble gases consisting of :- </span>
<span>Argon (0.93%) </span>
<span>Neon (less than 0.01%) </span>
<span>Helium (less than 0.01%) </span>
<span>Krypton (less than 0.01%) </span>
<span>Xenon (less than 0.01%) </span>
<span>Radon (less than 0.01%) </span>
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4 years ago
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Quiz
zmey [24]

the answer would be the third option: the cells change after being exposed to the chemical, and this change is passed to the next generation of cells.

6 0
3 years ago
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