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
Mila [183]
3 years ago
12

A fossil is found to have a 14c level of 79.0% compared to living organisms. how old is the fossil?

Biology
1 answer:
adoni [48]3 years ago
7 0
The answer is b only
You might be interested in
Why is the ability of the cell membrane to be "picky" important?
Yuliya22 [10]

Answer:

Hi there!

Your answer is:

It is very important for the cell membrane to be <em>semi-permeable</em> because the ability to pick and choose what comes in and out of the cell keeps the cell safe! The membrane can choose to block out nasty germs and can also choose to get rid of internal waste.

An example of when this is important is in this scenario:

Let's say the cells are in a really salty solution. Naturally, salt will want to pull the water out of the cell. If the membrane <u>wasn't</u><u> </u> semi permeable, the water would listen to the salt and leave the cell. This would cause cell death. <u>BECAU</u><u>SE</u> the membrane is semi permeable, they can choose <em>not</em> to give the salt any water, keeping them alive

Hope this helps

5 0
3 years ago
During respiration, oxygen will combine with haemoglobin to form a new substance. Write down the word equation for this reaction
Anastasy [175]

Answer:

The overall (unbalanced) chemical equation for cellular respiration is: C6H12O6+O2→CO2+H2O+energy.

8 0
2 years ago
Why does the amount of heat received by places far from the equator become less?
Ainat [17]
If the Earth were a disk with its surface perpendicular to the rays of sunlight, each point on it would receive the same amount of radiation. <span> However, the Earth is a sphere and aside from the part closest to the sun, where the rays of sunlight are perpendicular to the ground, its surface tilts with respect to the incoming rays of energy with the regions furthest away. Hope this answers the question.</span>
7 0
3 years ago
Name three sources you can use to do background research for this project a chicken coop is the name for the house where chicken
morpeh [17]

Answer:

yer boys name is billy

Explanation:

yessuh

6 0
2 years ago
Need help on this question 50 POINTS WILL GET BRAINLYEST!!!!!!!!!!!!!!! this is 4 Scince.
Vilka [71]
The answer is rain percolates through the pavement into the ground below, causing cracks in the pavemen
8 0
3 years ago
Read 2 more answers
Other questions:
  • Describe how the human body shows the life characteristic of organization
    12·1 answer
  • What stage of cellular respiration stage of cellular respiration uses the high-energy electrons from nadh and fadh2 to form ATP
    5·2 answers
  • . Arrange the following substances in order of increasing tendency to donate electrons
    12·1 answer
  • Water shape creates a positive and negative side to it. This shape then creates what characteristics of water?
    6·1 answer
  • Nerve damage leading to neurological impairment is a function of chronic exposure to inhalant drugs. how might inhalants affect
    12·1 answer
  • A muscle cramp is a sudden, painful contraction of a muscle, during which movement is difficult. What is happening at the cellul
    15·1 answer
  • EXTRA POINTS **
    8·1 answer
  • What is the potential energy of a pendulum with a mass of 0.7 kg, a height of 0.3 m, and a value of g equal to 9.8 m/s 2 ?
    6·2 answers
  • Which of the following is the main idea of paragraph 2? A.Offspring have a combination of traits from their parents. B.Parents h
    5·1 answer
  • Math solve questions​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!