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9966 [12]
2 years ago
5

How much has the greenhouse gas carbon dioxide increased in the air just in the last few years? ITS DUE IN A FEW HOURS PLEASE HE

LP!
Biology
1 answer:
ipn [44]2 years ago
6 0

Answer:

approximately 2.3 parts per million (ppm) per year

Explanation:

In 2019, the global amount of atmospheric carbon dioxide (CO2) has been estimated at approximately 410 parts per million (ppm). These levels are higher than at any time in the last 800,000 years, and it has been estimated that in 2025 the CO2 levels will be higher than at any time in the last 3.3 million years. In 2018, there has been an increase of approx. 2.5 ppm, the same increase observed between 2017 and 2018. Moreover, the average increase of the CO2 levels in the atmosphere between 2009 and 2018 was 2.3 ppm each year.

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Which of the following is a trait that links modern primates into a single taxonomic group?
swat32

Answer:a. Retention of five functional digits on the tore and hindimbs

Explanation:

The presence of five digits or pentadactyly on the fingers as well as on the toes makes the primates distinct from other mammals. Also the keratin nails are present on each digit makes these organisms distinct from other mammals.

The five digits on the hindlimbs helps in grip of objects and on toes helps in climbing.

6 0
3 years ago
Which mantle is under the crust the upper mantle or the lower mantle
Ivenika [448]

You're right. The Upper Mantle is directly under the Crust. Hope this helped! =^-^=

4 0
3 years ago
Read 2 more answers
Which of the following describes the embryonic period? the period during which the zygote moves down to the uterus and begins to
muminat

Answer:

Option (2).

Explanation:

Zygote is formed by the fusion of the male and female gamete during the process of sexual reproduction. The zygote undergoes further development inside the female womb.

The embryonic period starts from the third week after the conception. The important organs and structure development occur during the embryonic period. The formation of three germ layers occur in this period.

Thus, the correct answer is option (2)

6 0
3 years ago
What is true about translation? Choose ALL that apply.
Licemer1 [7]

<u>In the process of translation, the statement stands correct and applies are as follows:</u>

  • The ribosome has two sub-units that work together.
  • Amino acids are joined by peptide bonds.
  • Each tRNA brings in exactly one amino acid that corresponds to the anti-codon.
  • The order of the amino acids is determined by the mRNA which is transcribed from DNA.

Answer: Options A, B, C, and E

<u>Explanation:</u>

In the process of translation, ribosomes are the structural unit where the translation is being performed and it has the two sub-units which enact together the translational process.

Any two amino acids are bonded together by peptide bond and tRNA brings one amino acid at a time which corresponds to the anti codon. The order of amino acids is determined by mRNA transcribed from the DNA, and not from the ribosome. Thereby, all given options are correct except the option D.

8 0
3 years ago
Where do you think the oxygen atoms are coming from?
lina2011 [118]

Answer:

oxygen atoms come from  split water molecules

Explanation:

6 0
2 years ago
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