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
Elis [28]
3 years ago
13

She enjoys studying fossils. She learned how fossils called index fossils are found in the rock layers. The index fossils help s

cientists study rock ages. In what way do index fossils help determine rock ages?
A. Index fossils are widely distributed but were not around long, and so they show up in only a few rock layers.
B. Index fossils are widely distributed and were around for a long time, and so they show up in many rock layers.
C. Index fossils were around only a short time but they show up in many rock layers.
D. Index fossils are widely distributed and are always found in every sedimentary rock layer.
Biology
1 answer:
guapka [62]3 years ago
7 0
Answer: (B)

Explain:
You might be interested in
A dog breathes out CO2 and a tree releases O2. How are the dog and the tree connected in the oxygen cycle?
Hitman42 [59]
A dog breathes in oxygen and then releases carbon dioxide when he exhales. Conversely, a tree gives off oxygen and takes in carbon dioxide. So the breath of the dog sustains the tree while the output of oxygen for the tree sustains the dog.
6 0
3 years ago
A person diagnosed with exocrine pancreatic insufficiency (epi) does not have the digestive enzymes that are needed to adequatel
Leona [35]
Exocrine pancreatic insufficiency is basically a condition wherein the human body is incapable of digesting food due to lack of digestive enzymes produced by the pancreas. This is found in humans affected with cystic fibrosis and Shwachman- Diamond Syndrome and is also common among dogs. The consequences or side effects of this medical condition are the following:
a) frequent diarrhea
b) gassy stomach and bloating
c)stomach pain
d) greasy and foul smelling stools
e)weight loss

5 0
3 years ago
Which of the following accurately demonstrates the DNA base pairing rule
charle [14.2K]
The base pairing rules<span> for </span>DNA<span> are governed by the complementary </span>base pairs<span>: adenine (A) with thymine (T) in an A-T </span>pairing<span> and cytosine (C) with guanine (G) in a C-G </span>pairing<span>. Conversely, thymine only binds with adenine in a T-A </span>pairing<span> and guanine only binds with cytosine in a G-C </span>pairing<span>.</span>


I hope my answer has come to your help. God bless and have a nice day ahead!

4 0
4 years ago
How can human population growth affect ecosystems like rain forests?
Alexandra [31]
The answer would be C because people destroying rain forests for homes and resources are diminishing animal homes and animal population <span />
8 0
3 years ago
Read 2 more answers
What type of isolation occurs when the timing of reproduction is different between two populations?
ryzh [129]
Im pretty sure behavioral since isolation is kind of a trap thing so i guess it affects your behavior 
6 0
3 years ago
Other questions:
  • The cell theory teaches that _____.
    7·2 answers
  • What are the monomers and polymers of carbohydrates?
    13·1 answer
  • What is the most important organ in the human body?
    14·1 answer
  • How does a slow moving front differ from a fast moving front?
    12·1 answer
  • Is it the Veins or the arteries that carry blood away from the heart?
    6·1 answer
  • (PLESE HELP ME) If a force of 20.0 N is used to lift a box a distance of 0.5 m, how much work is done? (INCLUDE THE UNIT for wor
    5·2 answers
  • 2. a protein that catalyzes (speeds up) a reaction without being changed by the?
    8·2 answers
  • A segment of a DNA molecule has the base sequence ATGAAC. Write a shorthand structure for this segment and for its complementary
    5·1 answer
  • First answer right gets brainlyest
    9·2 answers
  • What is a homogeneous mixture?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!