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
stira [4]
3 years ago
15

Describe the division of the geologic time scale using terms eon epoch and period

Biology
1 answer:
timurjin [86]3 years ago
5 0

The geologic time scale is referred to as the system of chronological dating which is related to geological strata to time. It is used by palaeontologists, geologists and earth scientists to describe the relationship of events and timing that occurs during Earth’s history. The primary division of time is defined as eons. Eons follow a sequence of the Archean, the Hadean and the Proterozoic which are referred as Precambrian superon.

Eons are divided into an era whereby those eras are subdivided into periods, ages, and epochs. Eon, epoch, period and ages correspond with eonothem, series, systems and stage which are mostly used to refer to layers of rock which then stretches to geologic time in the history of the earth.

You might be interested in
A scientist is comparing the outer structure of an onion cell, structure X, to the outer structure of a human skin cell, structu
hammer [34]

Answer:

Structure X is only found in plant cells, and structure Y is found in plant and animal cells.  

Explanation:

The structure found on the outside of the onion cell is the cell wall, which is specific to plants. The structure found on the outside of the skin cell is the cell membrane, which is found on all cells.

Structure X is not living, and structure Y is living.  - this is false, both animal and plant cells are living.

Structure X can be found in some human cells, and structure Y can be found in some plant cells.  - this is false, the opposite is true.

Structure X is only found in plant cells, and structure Y is found in plant and animal cells.  - this is true structure X is the plant cell wall, and structure Y is the cell membrane

Structure X is semipermeable, and structure Y is selectively permeable. Semi-permeable and selectively permeable are essentially the same thing - it means the barrier allows some substances to pass through but not others.

4 0
3 years ago
Read 2 more answers
How long can a healthy ecosystem remain stable.​
Lesechka [4]

Answer:

Each component is in balance with the other components. As long as the components are in balance, the ecosystem can remain stable and healthy. Ecosystems may remain stable for many years if the different components are balanced.

4 0
3 years ago
Read 2 more answers
What consumes energy at each tropic level? How does this contribute to energy loss between trophic levels?
Irina18 [472]

Answer:

organisms from one trophic level are consumed by organisms from the next level.

Explanation:

3 0
3 years ago
During gastrulation, animals whose first opening is the anus are called
ELEN [110]
<span>The biological term for such organisms is "deuterostomes". Those who's first opening is the mouth are called protostomes. </span>
4 0
3 years ago
Read 2 more answers
How the rock cycle impact the lithosphere ? im in sceince not biology
weeeeeb [17]
Plate movement impacts the folding of this layer.
6 0
4 years ago
Other questions:
  • Will Lithium and chlorine form and ionic bond? Explain.
    15·2 answers
  • Which statement describes a shield volcano
    9·1 answer
  • Chewing a bite of bread mixes it with saliva and facilitates its chemical breakdown. This is most likely due to the fact that __
    6·1 answer
  • A problem that frustrates attempts to organize the entire living world for study: we don't know how many separate __________ of
    9·1 answer
  • Which of the following would be considered a quantitative observation? A)the height f the radish seedlings is measured. B)the od
    5·2 answers
  • After the small intestine which comes next in the alimentary canal apex
    9·2 answers
  • TRUE OR FALSE?
    8·2 answers
  • Where does piece 1 go?
    6·1 answer
  • It takes energy to lift heavy things.
    8·1 answer
  • To believe that humans are ______ is to believe that humans act on the basis of reason.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!