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
tatyana61 [14]
3 years ago
7

3. How would you date a sample of rock that you suspect as being one of the earliest on Earth? (1 point)

Biology
1 answer:
Kay [80]3 years ago
4 0
<span>If I were attempting to date a rock sample that I suspect to be incredibly old, i would use radioactive isotopes with a long half life. When dating rocks and fossils to discover approximately how old they are, radioisotope dating is used on igneous rocks found near fossils. Things like Uranium 235, which is an unstable radioactive isotope of elements, decays at a constant rate over time so can be useful in determining age.</span>
You might be interested in
In human development what must be present before tissue is formed?
sdas [7]
The answer would be Fertilized egg
6 0
3 years ago
Read 2 more answers
Label the pets from 1-19
Verizon [17]
1. Upper jaw 2. Mouth 3. Lower jaw 4. Vocal cords 5. Esophagus 6.stomach 7. Liver 9. Small intestine 11. Duodenum 12. Stomach lining 14/16. Large intestine 18. Rectum 19. Anus
5 0
3 years ago
In some chickens, the gene for feather color is controlled by codominance. The allele for black is B and the allele for white is
Agata [3.3K]

Answer:

The question is incomplete, it lacks the main questions, those questions are:

a. What is the genotype for black chickens?

b. What is the genotype for white chickens?

c. What is the genotype for erminette chickens?

Explanation:

This question involves a gene coding for feather colour in some birds, in which the black allele (B) and white allele (W) is involved. According to the question, the gene coding for feather colour exhibits co-dominance i.e. both the black (B) and white (W) allele are expressed in a heterozygous state (BW) to form an erminette phenotype.

Hence, if the neither alleles is dominant or recessive over the other. The black phenotype will only be expressed when the genotype is BB.

The white phenotype will only be expressed when the genotype is WW

The combination of both alleles which results in the simultaneous expression of both in the erminette phenotype, will be BW genotype.

8 0
3 years ago
Give an example of a scientific theory.
zepelin [54]

Answer:

Example of scientific theory is given below

Dalton's atomic theory, Einstein's theory of gravity, and the kinetic theory of matter.

Explanation:

PLEASE MARK ME BRAINLIEST IF MY ANSWER IS CORRECT PLEASE

4 0
2 years ago
Read 2 more answers
What is the elapsed time if a bus leaves the station at 8 AM and arrives at 9:30 AM?
oksian1 [2.3K]

Answer:

1 hour and 30 minutes

Explanation:

5 0
3 years ago
Other questions:
  • Which organelle modifies cell products, packages them for distribution, and then may turn into vesicles and bubble off the surfa
    14·1 answer
  • Which bacteria lives in the root nodules of leguminous plants?
    6·1 answer
  • Durante la expresión génica, el ADN se transcribe en ARN en el núcleo. Luego, el ARN se traduce en proteínas en el citoplasma. ¿
    14·1 answer
  • How are fats digested in our body? Where does this process take place?( A 5 marker question, pls give a sufficiently long answer
    8·2 answers
  • All of the black bears in a cave make up
    13·1 answer
  • What life changes do people<br> face in middle adulthood?
    10·1 answer
  • Sponges (phylum: Porifera) are animals that possess feeding cells called collar cells. These cells have a central flagellum surr
    14·1 answer
  • The moon has wildly different temperature ranges contrasted with earth because
    7·1 answer
  • 4. Start over and run the simulation for 5 generations with NO wolves, THEN add wolves.
    5·1 answer
  • We wish to test if a certain vaccine developed for a
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!