1answer.
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
mars1129 [50]
2 years ago
14

I need someone to help me by answering this questions....

Biology
1 answer:
iren2701 [21]2 years ago
6 0

sorry I don't know maybe I should try

You might be interested in
The bark of a tree trunk includes which of the following tissues?
rosijanka [135]
D. Secondary online and layers of periderm
7 0
3 years ago
The table below shows the radioactive decay of' a 10 kg sample of carbon-14. Create a graph using the data
tatyana61 [14]

C-14 half-life is the time it takes for half of the isotope mass to decay into its daughter form. Line graphs are the best way to represent data about half-lives and the amount of isotope (gr).

<h3>What is Carbon 14?</h3>

Carbon 14, also known as radiocarbon, is a radioactive carbon isotope.

Isotopes are the atoms of the same element -carbon- that vary in neutrons and, hence, in their massic number. They are alternative forms of the same element.

The radioactive C14 nucleus contains 6 protons and 8 neutrons and has a half-life of 5730 years.

The term <u>half-life</u> is a reference. It means that an organism that has been dead for 5730 years has half the C14 amount or concentration than the same organism had when it was alive.

In other words, the half-life is the time it takes for half the mass of this isotope to become its daughter form.

Knowing the half-life of an element is useful to determine the age of the dead matter.

C14 is used in radiocarbon dating techniques or methods to estimate the age of fossils. This is a reliable technique used for dating organic samples that are less than 50,000 years old.

An easy way of representing the change in mass of the isotope through the years is to make a line graph, which is easy to interpret and compare the information.

In this example, our line graph must represent the number of half-lives related to the amount of parent isotope in grams.

The table details the years and the amount of isotope. So, by kowing the half-life of C-14, we can get how many half-lives there are.

5,700 years ---------- 1 half-life

11,400 years--------- X = 2 half-lives ⇒ (5700 x 2) or (11,400/5,700)

17,100 years -------- X = 3 half-lives ⇒ (5700 x 3) or (17,100/5,700)

22,800 years ------ X = 4 half-lives ⇒ (5700 x 4) or (22.800/5,700)

28,500 years ------ X = 5 half-lives ⇒ (5700 x 5) or (28,500/5,700)

34,200 years ------ X = 6 half-lives ⇒ (5700 x 6) or (32,200/5,700)

39,900 years ------ X = 7 half-lives ⇒ (5700 x 7) or (39,900/5,700)

45,600 years ------ X = 8 half-lives ⇒ (5700 x 8) or (45,600/5,700)

51,300 years ------- X = 9 half-lives ⇒ (5700 x 9) or (51,300/5,700)

Now, we can make a new table,

<u>Number of half-lives       Carbon-14 (g) </u>

                0 ..............................10,000

                 1 ...............................5,000

                 2................................2,500

                 3 ................................1,250

                 4 ................................  625

                 5 ................................  312

                 6 ................................  156

                 7 .................................   78

                 8 .................................   39

<u>                  9 .................................   20         </u>

<u />

Finally, we can make the line graph using the data of this new table. You will find it in the attached files.

In conclusion, the best graph you can make is a line graph, and if they ask you to graph the number of half-lives and give you the number of years, you can just make the conversion using the half-life of the isotope.

You can learn more about isotopic half-life at

brainly.com/question/12341489

brainly.com/question/4702752

brainly.com/question/14508944

brainly.com/question/13462855

brainly.com/question/16930674

#SPJ1  

5 0
2 years ago
Why do living things go to great lengths to increase<br> their chances of reproduction?
IgorLugansk [536]

Answer:

Living things use structural strategies and behavioral strategies that increase their chances of reproduction.

Living things do so to reach the reproduction goal that is to pass genes on to offspring. For example: the pouch of a kangaroo, a frog croaking a mating call,  and colorful petals of flower etcetera helps in increasing mating chances so that their genes can be followed to the generation.

7 0
2 years ago
1. Digital signals carry less information per second.
DENIUS [597]

Answer:

2. Information can be stored for future recovery.

3. Digital signals can be transmitted over long distances.

Explanation:

This world is moving towards digitalization. The digital signals are able to transmit the data over long distance. This has squeezed the world information and the data are run to distant places within seconds. The information on digital signals can be stored for later use.

5 0
3 years ago
A food web is more realistic because a snake
Katen [24]

Answer:

B. eats more than just frogs

Explanation:

A food web is more realistic because a snake <u>eats more than just frogs</u>

7 0
2 years ago
Read 2 more answers
Other questions:
  • More energy can be released from a fat molecule
    12·1 answer
  • Global warming is caused by carbon dioxide.<br> A: True<br> B: False
    5·2 answers
  • What is the symbol of a circle with an x going through it?
    15·1 answer
  • Where does the energy to change the shoreline come from?
    11·1 answer
  • In dry environments, farmers often dig wells to provide irrigation for their crops. Which of the following is an environmental r
    9·2 answers
  • What are some important interactions between substances in living things?
    11·1 answer
  • I need help with biology if you’re willing to help pls lmk :)
    15·1 answer
  • Which types of organisms perform both
    9·1 answer
  • You are a volunteer at one of Pusat Pemindahan Sementara during this recent flood incident in Malaysia. Suddenly, a young lady c
    7·1 answer
  • Scientific laws commonly answer which question about the world?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!