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
Fynjy0 [20]
2 years ago
8

if a sample contains 20g of an isotope that has a half life of 1000 years how much will be left after 2000 years

Biology
2 answers:
GarryVolchara [31]2 years ago
8 0
5 grams will be left. After the first 1000 years, there will be half of 20 left, or 10. After 2000 years, half of 10 will remain, which is 5.
Vladimir [108]2 years ago
7 0

Answer:

5g

after 1000 we will have 20/2 which is 10

after 2000 we will have 10/2 which is 5

You might be interested in
Are plates the same as continents?
victus00 [196]

Answer:

No

Explanation:

The tectonic plates make up the earth's crust. Continents are huge visible land masses.

7 0
2 years ago
.They are usually found in air * True False
murzikaleks [220]

Answer:

true

Explanation:

I hope it helps

pa brainliest po

3 0
2 years ago
Read 2 more answers
What is the most common protein in the body
bekas [8.4K]
The answer you are looking for is Collagen.

Hope this helps!:)
6 0
3 years ago
Read 2 more answers
Which statements describe steps taking place in the nitrogen cycle shown above?
astraxan [27]

The statements that describe steps taking place in the nitrogen cycle are

  • Many biotic and abiotic factors play a role in recycling nitrogen ( A )
  • Farming practices and chemicals lead to a build-up of nitrates in the soil ( E )

Nitrogen cycle is biochemical process whereby nitrogen is converted to various chemical forms as it passes through the atmosphere, Marine and terrestrial ecosystems .

Nitrogen cycle undergoes four ( 4 ) important processes which are :  

  • Fixation
  • Ammonification
  • Nitrification and
  • Denitrification

Hence we can conclude that The statements that describe steps taking place in the nitrogen cycle are :

Many biotic and abiotic factors play a role in recycling nitrogen and

Farming practices and chemicals lead to a build-up of nitrates in the soil

Learn more about Nitrogen cycle : brainly.com/question/1380063

5 0
2 years ago
Given the mRNA sequence below, what would tRNA anticodons be in response? A-U-G-C-C-U-A-C-G-G-G-G-G-C-C-A
Lesechka [4]

Answer:

U-A-C-G-G-A-U-G-C--C-C-C-C-G-G-U

Explanation:

The mRNA (messenger RNA) is produced via the process of TRANSCRIPTION, which is the first stage of gene expression in living cells. The mRNA sequence formed is further read in the ribosomes in a group of three nucleotides called CODONS. This reading is done by another type of RNA called transfer RNA (tRNA).

The tRNA uses a set of three nucleotide bases that are complementary to that of the mRNA codons called ANTICODON. The anticodons are complementary to the mRNA codon i.e. A on the mRNA sequence will be read and recognized by U on the tRNA anticodon.

Hence, given the mRNA sequence: A-U-G-C-C-U-A-C-G-G-G-G-G-C-C-A, the tRNA anticodons that will read this sequence will be: U-A-C-G-G-A-U-G-C--C-C-C-C-G-G-U

8 0
2 years ago
Other questions:
  • Hawaii has not recorded any bullfrog sightings. What policies or laws could you keep in place to prevent the bullfrog from invad
    15·1 answer
  • In a family of 5 people, 4 are vaccinated against mumps. An outbreak occurs in the area, explain why the unvaccinated person is
    7·2 answers
  • A scientist who is thinking critically should:​
    5·1 answer
  • Today’s beverage pasteurization processes are the result of this scientist’s work.
    14·1 answer
  • An increase in blood glucose levels will lead to________
    14·2 answers
  • What was the variable in Redi's experiment?
    6·2 answers
  • ANSWER NEEDED NOW!! | MARKING BRAINLIST |
    13·1 answer
  • Starting in 1850 when Europe become industrialized, the frequency of melanic forms of the peppered moth in populations ______ un
    10·1 answer
  • Why do animals exist in various species
    14·1 answer
  • ¿Cuáles son los derechos que defiende el Fondo De Las Naciones Unidas Para La Infancia?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!