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
rusak2 [61]
3 years ago
12

EARTH SCIENCE multiple choice plz help

Biology
2 answers:
Studentka2010 [4]3 years ago
8 0

Answer;

-Carbon-14 decays into nitrogen-14.

-Once a living thing dies, it no longer takes in carbon.

-Carbon-14 dating works for fossils as old as 50,000 years.

Explanation;

-Geologists do not use carbon-based radiometric dating to determine the age of rocks. Carbon dating only works for objects that are younger than about 50,000 years, and most rocks of interest are older than that.  

-Carbon dating is used by archaeologists to date trees, plants, and animal remains; as well as human artifacts made from wood and leather; because these items are generally younger than 50,000 years.

-Carbon-14 has a half life of 5730 years, meaning that 5730 years after an organism dies, half of its carbon-14 atoms have decayed to nitrogen atoms.

Paha777 [63]3 years ago
5 0

Answer:

A,C,E

Explanation:

Just took it

You might be interested in
The use of arsenate instead of phosphate by glyceraldehyde 3‑phosphate dehydrogenase produces 1‑arseno‑3‑phosphoglycerate, which
iVinArrow [24]

Answer:

In glycolysis, the generation of ATP takes place at the time of the transformation of 1,3-bisphosphoglycerate to 3-phosphoglycerate and at the time of the transformation of phosphoenolpyruvate to pyruvate. However, when arsenate is used in place of phosphate it results in the generation of 1-arseno-3-phosphoenolpyruvate to pyruvate that further gets dissociated into 3-phosphoglycerate without generating any ATP.  

However, in the process, the transformation of phosphoenolpyruvate to pyruvate does not get hampered, and therefore, the reaction will produce two ATP from one glucose. Although at the time of the preparatory phase of glycolysis, two ATPs are used that signifies that the net gain of ATP will be zero.  

7 0
3 years ago
4. Explain the difference between a scientific law and a scientific theory.
madam [21]

Answer:

Scientific laws and theories have different jobs to do. A scientific law predicts the results of certain initial conditions. ... In contrast, a theory tries to provide the most logical explanation about why things happen as they do.

Explanation:

put this in ur own words its copied

4 0
2 years ago
The goal of _____ is to use cells and tissues treat human issued an injury
galina1969 [7]
Therapeutic cloning Is the answer you’re looking for
8 0
3 years ago
Read 2 more answers
What are the food groups called<br><br><br>​
Dovator [93]

Answer:

dairy, fruits, grains

Explanation:

6 0
3 years ago
Which of the following describes a relationship of commensalism?
yaroslaw [1]

The correct answer is:

B.) A tapeworm latches itself in the intestines of a rat, feeding off all the nutrients eaten by the rat.

Believe me, I just took the quiz and got the answers back, and I got this wrong because of the answer I got from here was WRONG!!

So happy to help :)

7 0
3 years ago
Read 2 more answers
Other questions:
  • Choose the true statements concerning animal versus human blood from the list below i. human blood contains red blood cells, whi
    13·1 answer
  • Why does the cell use proteasomes or lysosomes to destroy misfolded proteins or proteins that are no longer needed? Destruction
    8·1 answer
  • You have been called for a​ 6-year-old male patient with shortness of breath. On​ scene, you find the patient with a runny nose
    9·1 answer
  • An amateur horticulturalist breeds tulips in the hopes of obtaining a flower with unique and desirable traits. After several gen
    13·2 answers
  • Please help me answer this 5 questions i mark you as brainlist
    9·1 answer
  • Which of the following are biotic factors and which are abiotic factors?. A.Rain and grass are biotic; wind and humidity are abi
    10·2 answers
  • Ringing in the ears is called:
    10·2 answers
  • There are natural events and human activities that can disrupt the equilibrium of an ecosystem. Name 3 pleae
    8·2 answers
  • Identify the molecule that is produced during both photosynthesis and cellular respiration to power chemical reactions.
    10·1 answer
  • Explain the mechanism of biological nitrogen fixation in detail​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!