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
Ilia_Sergeevich [38]
3 years ago
5

What are three ways to determine the age of earth specimens and help prove that the changes on the earth occur over very long pe

riods of time?
Biology
1 answer:
Verizon [17]3 years ago
4 0

Answer:

The decay of potassium to argon, uranium to lead, and one isotope of lead to another are some common yardsticks used to date very old rocks. These dating methods allow scientists to put real ages on rocks with astonishing accuracy.

Explanation:

The best estimate for Earth's age is based on radiometric dating of fragments from the Canyon Diablo iron meteorite. From the fragments, scientists calculated the relative abundances of elements that formed as radioactive uranium decayed over billions of years.

You might be interested in
How does the structure of a brain cell related to its function?
lesya [120]

Solution:

Structure dictates function. Ribosomes provide another good example of structure determining function. These small cellular components are made of protein and ribosomal RNA (RNA).Their main function is to translate messenger RNA, or mRNA, into strings of amino acids called proteins.

The structure and shape of each type of human cell depends on what function it will perform in the body. For example, red blood cells (RBCs) are very small, flat discs, which allows them to easily fit through narrow capillaries and around sharp corners in the circulatory system to deliver oxygen throughout the body.

Neurons carry messages from the brain and spinal cord to the rest of the body, using electrical signals down their lengths and chemical signals between neurons. Since electrical signals travel much faster than chemical signals, neurons are long and thin to minimize the number of slower chemical signals that would be required between links in a chain of many shorter neurons.

The elongated shape of muscle cells allows the contraction proteins to line up in an overlapping pattern that makes muscle flexing possible.

And human sperm cells’ structures allow them to “swim” long distances to reach an egg for fertilization. They do this by using flagella, their long whip-like tails, and also by being very small, carrying little more than the DNA for a potential zygote.

This is the required answer.

7 0
3 years ago
The distinction between sensation and perception ______. Group of answer choices
Ratling [72]

<u>Answer</u>:

The distinction between the sensation and perception allows the researchers to distinguish between the information processed by the receptors versus the information processed in the cortex.

<u>Explanation</u>:

The sensation is a process by which the sensory receptors take up the signals or stimuli from its surroundings and send it to the brain through nerves. Whereas, in the process of perception the brain organizes, combines and makes patterns from the given stimuli and gives the response to the particular stimuli accordingly.

Both sensation and perception are connected to each other hence if one doesn’t work then the other automatically stops working.

8 0
3 years ago
Please HURRY!!
malfutka [58]
D bacteria are the main nitrogen transporters
5 0
2 years ago
Some areas of the Earth receive more solar radiation than others. Which of the following results from the Sun's uneven heating o
Setler [38]
The tilt of the earth's axis, which essentially "turns" certain parts of earth so that some parts receive more direct sunlight
3 0
3 years ago
While waiting for the school bus, it begins to rain. This is an example of:
zheka24 [161]
External stimulus. The rain is something out of your control while you're waiting. Rain is not something you are doing nor is it a response to you waiting for the bus.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Which statement below is NOT true?
    5·1 answer
  • 1. Which of the following best explains why a cell needs ATP?
    10·1 answer
  • An african american couple is undergoing genetic counseling to determine the likelihood of producing children with a recessively
    9·1 answer
  • What are the three best ways to generate ideas for a writing project? A. Searching the Internet, conducting interviews, and aski
    12·2 answers
  • An animal's somatic cells contain 2n chromosomes. What happens to the number of chromosomes in the animal's gametes ?
    10·1 answer
  • Which of these is not a human activity that impacts the environment?
    7·2 answers
  • What makes one DNA molecule different from another?
    15·1 answer
  • This fossil trilobite and this living blue crab both have a limb structure called a biramous limb. What best explains why both s
    10·1 answer
  • What separates during meiosis?
    8·1 answer
  • Which is an example of radiation?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!