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
Westkost [7]
3 years ago
8

Thinking Critically Potassium-40 decays to

Biology
1 answer:
mamaluj [8]3 years ago
3 0

Answer:

The radioactive isotopes of Potassium-40 generally observed to decay to argon-40 and calcium 40, also called daughter isotopes. The problem arises with the calcium 40 radioisotopes which cannot be used for age determination due to its excessive presence.

Explanation:

The radioactive isotopes Potassium 40 decays to argon 40 helps in determining age of fossils and rocks mainly due to the fact that extreme heat causes radioactive potassium to decay to noble argon-40 gas. The rate of decay is attributed to its half life period which in turns help in finding the relative age of fossils or rocks. But, problem occurs when it decays to calcium 40, as because calcium forms large part of many minerals including bone.

You might be interested in
Propose an explanation why there might be a sudden appearance of a species in the fossil record.
stellarik [79]
D) Fossils could not be found in that layer of rock.
4 0
3 years ago
Read 2 more answers
7.
liraira [26]

Answer:

Explanation:

 

3 0
3 years ago
Read 2 more answers
drawing upon the results of this exercise, why is pseudomonas aeruginosa of such concern in burn patients chegg
Agata [3.3K]

Pseudomonas aeruginosa is of concern in burn patients beacuse it can cause infections like AIDS,diabetes mellitus , etc.

Pseudomonas aeruginosa is a common bacteria that can be found in soil, water, and other environmental niches. Burn wounds are intricate microenvironments where bacterial pathogens like P. aeruginosa can cause infections. Typical virulence factors like pyocyanin and pyoverdine expressed at higher levels than they would have under conventional laboratory conditions.

Elastase is secreted as well, is primarily responsible for the host tissues'  degradation. P. aeruginosa infections cause severe consequences mostly in organisms with weakened natural defences. Examples of these circumstances include burn wound patients.

Learn more about Pseudomonas aeruginosa here:

brainly.com/question/15139053

#SPJ4

7 0
2 years ago
A student performed an experiment with bags of dialysis tubing filled with distilled water to model the process of osmosis. Dial
Reil [10]

Answer:

Taking into account the principle of osmosis, the question that best addresses experimental design is  <em>How does the effect of environmental sucrose concentrations impact the  movement of water across a membrane?</em>

Explanation:

The experimental design of the student, made with dialysis bags and sucrose at different concentrations should recreate the principle of osmosis, of importance in living beings for organic homeostasis.

Osmosis consists of the movement of water - through a semi-permeable membrane - from a less concentrated solution to a higher concentration solution, following a gradient, to achieve balance.  

The student will observe in his experiment that water moves from the solution with less sucrose concentration to the higher concentration of sugar. Beakers with the highest concentration of sucrose will have the highest weight, due to the increase in liquid volume.

How does the effect of environmental sucrose concentrations impact the  movement of water across a membrane?

The experiment shows that:

  1. The water from the beaker with less sucrose concentration moved -through the dialysis tubes and the membrane- to the beaker containing the most concentrated sucrose.
  2. Different sucrose concentrations will attract different amounts of water, which influences the final weight of each container.

With this experiment the principle of osmosis is confirmed, where the concentration of a solute determines the amount of water that passes through a semipermeable membrane -following a concentration gradient- until equilibrium is reached.

Learn more:

brainly.com/question/1517477

7 0
3 years ago
Read 2 more answers
I need help with this please ​
Anna35 [415]

Answer:

Corresponding mRNA Sequence: ALGUG GAACC_GCUG CLGA

Amino Acid Sequence: METHIONINE-LEUCINE-GLUTAMIC ACID-PROLINE

3 0
2 years ago
Other questions:
  • Two different organisms were studied in a carrying capacity study. One was a paramecium population that grew in a flask in a lab
    10·1 answer
  • During what phase do sister chromatids move apart?
    7·1 answer
  • Six fingered offspring are formed from normal fingered parents
    10·2 answers
  • A scientist investigates the toxic effects of a chemical on the brain.
    11·1 answer
  • Out of the organisms listed, which are most closely related based on the characteristics listed.
    8·1 answer
  • ATP is considered to be an energy carrier molecule. Where is the energy actually located in this molecule? A) attached to the ph
    11·2 answers
  • Which type of immunization injects a form of the pathogen into your body so that your body creates its own antibodies?
    11·2 answers
  • The researcher determines that the S value (number of species at equilibrium) for the island closer to the mainland is _________
    8·1 answer
  • ILL GIVE BRAINLIEST!<br><br> This is a simple science question, please help!
    6·2 answers
  • How large is the biosphere?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!