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
MariettaO [177]
3 years ago
13

Fossils up to 75,000 years old can be dated with ______.

Biology
2 answers:
kodGreya [7K]3 years ago
7 0
Fossils up to 75,000 years old can be dated with Carbon-14.
 
Radio isotopes can be used for the age determination of the fossils. Carbon-14 is a common isotope which is used for that purpose. But the half- life of the Carbon-14 is relatively small as 5730 years. That means the amount of Carbon-14 will be half after every 5730 years. Hence, decay is very fast. So Carbon-14 cannot be used forage determination which is more than 75000 years due to the low accuracy.
tester [92]3 years ago
7 0
Carbon-14

Hope this Helps!
You might be interested in
Why Do many scientist think that prokaryotes are similar to the first organisms on the earth?
Vilka [71]

Explanation:

Between prokaryotes and eukaryotes, which type of cells are believed to have evolved first? Scientists have concluded that prokaryote life forms preceded the more complex eukaryotes. All organisms on Earth are classified into two basic cell types. Kary means nucleus.

3 0
3 years ago
Read 2 more answers
Differentiate between ;
Rasek [7]

Answer:

1) The main difference between Fats and Oils is that, fats are usually derived from animals, whereas oils are usually derived from plants.

Fats and oils are very important for every human body. It is mainly essential for daily dietary plan. Fats and oils are totally different from each other. In simple terms, fats are animal fats whereas oils are vegetable oils. The other difference is fats tend to be solids at room temperature; on the other hand, oils tend to be liquid at room temperature. Remember, on the daily basis the two terms can be used interchangeably because both, fats and oils contain 9 calories per grams.

2) Phospholipids are similar to triglycerides, but they do vary slightly in form and function. While triglycerides have glycerol and three fatty acids, phospholipids have glycerol, two fatty acids and a phosphate. Phosphates are molecules with charges and have oxygen and phosphorus. ... Fat cells do not store phospholipids.

3) Thoracic cavity, also called chest cavity, the second largest hollow space of the body. It is enclosed by the ribs, the vertebral column, and the sternum, or breastbone, and is separated from the abdominal cavity (the body’s largest hollow space) by a muscular and membranous partition, the diaphragm. It contains the lungs, the middle and lower airways—the tracheobronchial tree—the heart, the vessels transporting blood between the heart and the lungs, the great arteries bringing blood from the heart out into general circulation, and the major veins into which the blood is collected for transport back to the heart. The heart is covered by a fibrous membrane sac called the pericardium that blends with the trunks of the vessels running to and from the heart. The thoracic cavity also contains the esophagus, the channel through which food is passed from the throat to the stomach.

4) An organelle (think of it as a cell's internal organ) is a membrane bound structure found within a cell. Just like cells have membranes to hold everything in, these mini-organs are also bound in a double layer of phospholipids to insulate their little compartments within the larger cells.

5) Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. Many organs working together to accomplish a common purpose is called an organ system.

6) Absorption: The process of absorbing food in the form of nutrients into the blood stream of the body. Assimilation: The process of nutrients being absorbed by each cell of the body in the form of energy. Egestion: Secretion of waste, unwanted and excess substances from the body after food the as been digestion

hope this answer helps you!!

please mark as brainliest... thank you!

8 0
3 years ago
How have the factors that trigger an asthma attack changed since the 1900s? As a researcher, how would you put together the clue
eduard

so if you look up things that can cause an asthma attack it will also show that viruses and bacteria are a cause. with asthma you lungs could already be inflamed as well as your air way wich makes it harder to breath. when you have c-19 it will inflame your lungs even more so it makes it even harder to breath given an asthma attack. more asthma attack now are probably caused by c-19 because it is all over the place and the percent of asthma attack by virus has dramatically increased.

4 0
2 years ago
How to use bacteria as a treatment for sewage waste
konstantin123 [22]

Answer:

Aerobic bacteria can be used to use the available oxygen in the water to degrade the pollutants in the waste and convert it into energy it can use for its metabolic processes.

6 0
3 years ago
WILL GIVE BRAINLIEST ANSWER<br>please solve this problem
Sunny_sXe [5.5K]
Its just common sensde

8 0
3 years ago
Other questions:
  • The cell theory says all living things are composed of one or more
    7·1 answer
  • Is the structure of dna related to its function
    15·1 answer
  • What gas is a reactant in aerobic cellular respiration?
    13·1 answer
  • Chloroplasts contain many disk-like structures known as thylakoids. What pigment do thylakoids contain?
    6·1 answer
  • In the dihybrid cross,_____of the parents had black fur and black eyes. The offspring_____.
    14·1 answer
  • Match each cell organelle with its description
    14·2 answers
  • What is a cuticle?
    6·2 answers
  • 1. What is the difference in the base pairing rules for DNA and RNA?
    14·1 answer
  • In the experiment on stimulation of the isolated sciatic nerve, a compound action potential is produced. This represents _______
    13·1 answer
  • Where in the plant are the hormones auxins produced? (Select all that apply.)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!