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
Andre45 [30]
3 years ago
12

What makes a fossil an index fossil ?

Biology
2 answers:
Masja [62]3 years ago
5 0

Answer:

An index fossil is a fossil used to determine the age of the sediments in which it is found. When quickly approximating the age of new finds, an archaeologist looks at the rocks in which it is buried, as those sediments would have been on the surface at the time of the death of the pre-historic creature.

hope this helps

bulgar [2K]3 years ago
4 0

Explanation:

A fossil is an index fossil when it is distinctive, abundant, and limited in geological areas. A good index fossil lived for a short period of time so that the range of ages of the strata in which the index fossil is located is small. A good index fossil is found in a wide geological range.

A fossil is an index fossil when animals or plants preserved in the rock record of the Earth is characteristic by a particular span of geologic time or environment.

You might be interested in
Description of rocks what’s is a Becca
CaHeK987 [17]

Answer:

there's no image

Explanation:

sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry sorry

5 0
2 years ago
The table below provides the number of chromosomes found in the body cells of various types of organisms.
Natali5045456 [20]
"The number of chromosomes present in a diploid cell doubles for each generation because there are two parent" is the one among the two statements that <span>is the best explanation for why the chromosome numbers above are all even. The correct option among the two options that are given in the question is the second option or option "B". </span>
7 0
3 years ago
Read 2 more answers
A 6,000 kg train car is moving to the right at 10 m/s and connects to a 4,000-kg train car that wasn't moving. What is the veloc
SIZIF [17.4K]

6 m/s

This type of collision is a <u>Inelastic collision </u>

Explanation:

We begin by finding the momentum of the initial train car;

Remember that momentum is given by the formulae mass (kg) * velocity (m/s)

Therefore;

Momentum = 6000 * 10

= 60,000 kg⋅m/s

The other car has zero momentum because;

4000 * 0

= 0

When the two train cars collide, the total momentum will be;

60,000 + 0 = 60,000

Therefore to find the velocity, well use the same formulae;

p = mv  whereby;

p – momentum

m – mass

v – velocity

60,000 = (6000 + 4000) * v

v = 60,000 / 10,000

v = 6

= 6 m/s

This is an elastic collision because we are assuming that no energy is lost in the collision. Most collisions, however, are not elastic but rather inelastic. In inelastic collision some of the kinetic energy is lost to the environment in some other form of energy such as heat energy.

Learn More:

For more on elastic collisions check out;

brainly.com/question/10864123

\brainly.com/question/12201392

#LearnWithBrainly

7 0
3 years ago
20 POINTS PLEASE ANSWER QUICK
forsale [732]

Answer:

Their Cell walls

Explanation:

Bacteria has a cell made up of peptidoglycan

Archaebacteria has a cell wall made of various compounds)

Their rRNA is different, so different taht tehy are placed on different part of the evolutionary tree.

6 0
3 years ago
Read 2 more answers
Air pressure is ___________, when lung volume is___________.
nexus9112 [7]
Air pressure (inside the lungs) is lowest when lung volume is highest, so the answer is B. when you breathe in your lungs expand, which makes the air molecules spread out, therefore the pressure is lower.
6 0
3 years ago
Read 2 more answers
Other questions:
  • If private property rights were established in the air, there would probably be a. more air pollution. b. less air pollution. c.
    13·1 answer
  • Which food contains the material needed to build muscle, but does not contain the macromolecule that give quick energy?
    8·1 answer
  • In the cells of the human body, oxygen molecules are used directly in a process that (1) releases energy (2) digests fats (3) sy
    9·1 answer
  • A cell that measures about 200um in length is MOST likely from which of the group below.
    6·2 answers
  • The total number of electrons in a neutral atom of every element is always equal to the atom’s
    11·1 answer
  • Glucose and sucrose are what
    15·1 answer
  • Using a microscope in the science lab, Jill observed two unknown cell: Cell
    5·1 answer
  • What will be the effect of placing a plant cell in a hypotonic solution?
    12·1 answer
  • Which of the follwoing supplies us with the energy we need?<br> DAP<br> ATP<br> ATM
    14·1 answer
  • If the earthquake's focus was 2 kilometers below Earth's surface, the earthquake occurred in
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!