answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lara31 [8.8K]
2 years ago
13

What quantity of carbon dioxide was in the atmosphere in 1980? 317 ppm 326 ppm 339 ppm 371 ppm

Biology
2 answers:
mylen [45]2 years ago
8 0
<h3><u>Answer;</u></h3>

371 ppm

<h3><u>Explanation;</u> </h3>
  • <em><u>371 ppm is the quantity of carbon dioxide that was in the atmosphere in 1980.</u></em>
  • <em><u>Atmospheric carbon dioxide concentrations in parts per million (ppm) was 371 in 1980. However, this has increased over the years due to human activities such as burning of fuels which release carbon dioxide into the atmosphere.</u></em>
  • In 2017, the average global atmospheric coincentration of carbon dioxide was 405.0 parts per million.
SOVA2 [1]2 years ago
7 0
The answer is 371ppm
You might be interested in
Single strands of nucleic acids are directional, meaning that there are two different ends. What functional groups define the tw
worty [1.4K]

Answer:

The 5' end has free phosphate group while the 3' end has free OH group.

Explanation:

Each DNA strand has two ends that differ from each other with respect to the functional group. The nucleotide present at the 5' end of a DNA strand has a free phosphate group. This phosphate group of other nucleotides of the DNA strand is bonded in phosphodiester bonds. Likewise, the 3' end of a DNA has a free OH group. This makes the two ends of a DNA strand quite different from each other. A DNA new nucleotide can be added to the 3' end due to the presence of a free OH group.

7 0
2 years ago
Which of the following claims about the TYR, TRP2, and TRP1 mammalian genes is most likely to be accurate?
Illusion [34]

The TYR, TRP2, and TRP1 genes are located next to each other on a single chromosome and are organized into an operon is most likely to be accurate.

The option a is correct.

Explanation:

The genes for the Tyrosinase, TRP2 and TRP1 are located on the same chromosome and are operons. These are operons because they are controlled by same transcription factors on mRNA.

Tyrosinase enzyme is important for the synthesis of melanin, eye pigments and hair colour. The synthesis of all these is completed in three distinct reactions  catalysed by TRP1, TRP2 and Tyr genes. These work as operon and the protein product is almost 40% similar of the three genes.

The amount of melanin production depends on tyrosinase enzyme activity of all the three genes.

The genetic regulation is done by operons.

4 0
2 years ago
Where are carbohydrates found in the body? And in cells?
slavikrds [6]

Hi,

Answer: The Liver

<u>My work:</u> Carbohydrates are usually located and converted in the Liver.

<u><em>Extra Information:</em></u> The body uses Carbohydrates as glucose. From there glucose can be converted to glycogen.

<u><em>Words you might not know:</em></u>

1) Converted - To change.

2) Glucose - Energy source.

3) Glycogen - Stores Carbohydrates

I Hope I Helped!

<em>~KingJupiter</em>



3 0
2 years ago
Read 2 more answers
If i wanted to look at a onion cell what type of microscope would be best to use
poizon [28]
It is best to use regular light microscopes to observe that.

For simple structures, onion cells doesn't require a very large magnification. Magnifications for such as 100X or 150X is already enough to determine the different structures of onion cells such as cell walls or cytoplasm.

It is not very suitable to use a electron microscope especially as high school or college students, as electronic microscopes can be really expensive, usually only top universities have them. Also, it is quite complicated to control the microscope comparing to the common light microscope that we can easily find in many school laboratories. They're easy to function and they're a lot cheaper.

So, it's best advised to use a light microscope, unless if you're really into studying very detailed structures and you're experienced in doing these sorts of things, then you should use a electron microscope.
7 0
2 years ago
Improper home canning procedures are the most common cause of ____ poisoning.​
topjm [15]
Food poisoning..
is the correct answer....


HOPE IT HELPS YOU '_'
7 0
2 years ago
Read 2 more answers
Other questions:
  • Use this link to explore the habitat of a giraffe, then answer the question provided. Describe the habitat of the giraffe.
    13·2 answers
  • Brainliest answer for correct. Thanks
    7·1 answer
  • To code for the operating microscope, what verbiage are you looking for in the medical record?
    14·1 answer
  • There are more than 1/4 million species of beetle. Assume the average length of a beetle is 1cm and the average walking speed is
    6·1 answer
  • Imagine walking through a tropical rainforest. You notice that there are different types of trees, birds, insects, and other org
    6·2 answers
  • The proximal end of the radius illustrates the relationship of form and function. The cup-like surface of the radial head articu
    9·1 answer
  • Which of the following best predicts the most direct effect of exposing prokaryotic cells to streptomycin?
    9·1 answer
  • The primary way in which toddlers play is
    11·2 answers
  • Which human activity can produce disruption of fish breeding habits, increase in mosquito population, and flood control? constru
    10·2 answers
  • A student observed a palisade cell using a microscope. The microscope had four objective lenses, each with a different magnifica
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!