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
padilas [110]
3 years ago
6

The half-life of tritium or hydrogen-3 is it 12.32 years, after about 24.6 years how much of a sample of tritium remain unchange

d?
A 1/3
B 1/2
C 1/8
D 1/4
Biology
1 answer:
Fittoniya [83]3 years ago
6 0

The answer will be D, 1/4.

How you come to this conclusion( for future reference to anyone stuck on this ), is figure out how many half-lives have passed. In this case two half-lives have passed ( 24.6 is 12.32 + 12.32 ), so just put into your calculator 1/2 x 1/2 ( or .5 x .5 ). Make sure your answer is in fraction form, and you have your answer! Hope this helps any who may see this!

You might be interested in
What are the positive impacts of using biotechnology with regard to society, ethics, and economics?
max2010maxim [7]
-Genetically modified crops :weather and disease resistant meaning more crops and more food available ensuring food security for many counties
- Vaccinations : immunisation from diseases that previously proved deadly
- Fertility assistance ,prenatal scanning, home pregnancy tests
-research into Alzheimer’s
- provided cancer and heart disease treatment
- enabled growing of organs so waiting lists for transplants get shorter and more lives are saved
7 0
3 years ago
Anyone help me with this question plz
wolverine [178]

Hey again,

The answer you are looking for is B).

Just as proteins consist of long chains of amino acids, DNA and RNA consists of nucleic acid chains called nucleotide's. Nucleotide's are composed of three units: base, sugar (monosaccharide) and phosphate. Bases are found in both DNA and RNA. As seen below, they are adenine, cytosine, guanine, thymine, and uracil.

Hope this helps!!!!!!

Plz mark brainliest!

5 0
3 years ago
What distinguishes bogs, marshes, and swamps from each other?
vladimir2022 [97]
The answer is <span>b. Swamps are deeper and have a larger proportion of surface water than marshes, and bogs have acidic groundwater.

Bogs, marshes, and swamps are types of wetlands. Swamps and marshes are mineral soil wetlands. Swamps are deeper and with a larger proportion of surface water than marshes. Usually, swamps develop from marshes that fill in. Bogs are organic soil wetlands. They are acid areas with acidic groundwater.</span>
5 0
3 years ago
Read 2 more answers
Why or how are calories "wasted" during gluconeogenesis?
ira [324]

luconeogenesis is a ubiquitous process, present in plants, animals, fungi, bacteria, and other microorganisms.[2] In vertebrates, gluconeogenesis takes place mainly in the liver and, to a lesser extent, in the cortex of the kidneys. In ruminants, this tends to be a continuous process.[3] In many other animals, the process occurs during periods of fasting, starvation, low-carbohydrate diets, or intense exercise. The process is highly endergonic until it is coupled to the hydrolysis of ATP or GTP, effectively making the process exergonic. For example, the pathway leading from pyruvate to glucose-6-phosphate requires 4 molecules of ATP and 2 molecules of GTP to proceed spontaneously. Gluconeogenesis is often associated with ketosis. Gluconeogenesis is also a target of therapy for type 2 diabetes, such as the antidiabetic drug, metformin, which inhibits glucose formation and stimulates glucose uptake by cells.[4] In ruminants, because dietary carbohydrates tend to be metabolized by rumen organisms, gluconeogenesis occurs regardless of fasting, low-carbohydrate diets, exercise, etc.[5]

3 0
3 years ago
In atomic theory, new substances are formed when Adams of other substances are rearranged. In this kind of change, the total num
Ket [755]
I think the first one 


8 0
3 years ago
Other questions:
  • If an atom has 42 protons and 36 neutrons, how many electrons will it have?
    13·2 answers
  • A social interaction in which both the donor's fitness and the recipient's fitness are increased is called
    6·1 answer
  • In which layer is lithification most likely to occur? <br>​
    7·1 answer
  • Can this graph help you explain why the amount of carbon dioxide in the air of the biodome decreased?
    10·1 answer
  • A bond formed by the electrical attraction between two oppositely charged ions is a(n)_____.
    6·2 answers
  • What will happen to DNA sequence variation in the regions of the genome immediately adjacent to an allele undergoing a selective
    11·1 answer
  • DUE TODAY HELP ASAP HELP PLEASE BABAAAAAAAAAAABBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaSAAAAAAAAA
    8·2 answers
  • Consider this microscopic image of bacteria.
    9·1 answer
  • Give examples of terrestrial food chain.(one edaphic food chain and one aboreal food chain​
    15·1 answer
  • What are produced in both the male and female reproductive systems in humans?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!