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
guapka [62]
4 years ago
7

A scientists wishes to determine whether or not a marine ecosystem underwent primary or secondary succession in the past. What e

vidence would be most useful for making this determination?
Unearth the fossil history of the ecosystem to find producers that can live on rock.
Use radiocarbon dating to determine the age of the rock underlying the ecosystem.
Determine the average age of all producer species in the ecosystem at the present time.
Determine the chemical composition of the water in the ecosystem at the present time.
Biology
1 answer:
Triss [41]4 years ago
7 0
I believe the correct answer from the choices listed above is the second option. The evidence that would be most useful for making this determination would be to u<span>se radiocarbon dating to determine the age of the rock underlying the ecosystem.</span>. Succession<span> is usually initiated by a significant disturbance of an existing community. Hope this answers the question.</span>
You might be interested in
The bedrock of the adirondack mountains was formed mainly by the
MatroZZZ [7]
There are choices for this question namely:

a. cementation of clastic sediments and precipitates from seawater 
<span>b. compaction and recrystallization of volcanic material </span>
<span>c. regional metamorphism of sedimentary and igneous rocks </span>
<span>d. contact metamorphism of unconsolidated gravel 
</span>
The correct answer is that the bedrock of the Adirondock mountains is formed mainly by regional metamorphism of sedimentary and igneous rocks. The geology of the Adirondock mountains formed around 5 million years ago with rocks  over 1000 million years old. At this very ancient age, the sedimentary and igneous rocks in the Adirondock mountains have undergone extensive heat and pressure hence regional metamorphism of the existing sedimentary and igneous rocks.
7 0
3 years ago
Which of the following is false regarding the protein pepsin?
Ilya [14]

Answer:

C. Pepsinogen is the active form of pepsin.

Explanation:

Pepsin is a gastric protease belonging to the aspartic proteinase family which breaks down polypeptide chains into smaller peptides by hydrolyzing peptide bonds. Pepsin is found in the gastric juice where it digests proteins from foods together with other digestive enzymes and hydrochloric acid. Moreover, pepsinogen is a precursor of pepsin which is secreted by the gastric chief cells of the human stomach and then is converted into pepsin (its active form) by hydrochloric acid.

4 0
3 years ago
Please write a poem. Will give brainilist.
kvv77 [185]
( give it your own title )

There’s a point you need to look for in every movie, usually about half and hour before the end, when the hero is defeated in some spectacular way, beaten into submission and presumed dead. If not dead, then maybe they’ve given up, lost all hope, and there doesn’t seem to be any way to convince them to carry-on and reach for the thing they’ve been reaching for.


But then, something incredible happens. They look inside themselves and discover something that was lost - the strength to carry them on. A single spark lit a fire inside them and they return to the fight and this time they win and then the credits roll.


We tell ourselves the story again and again because it’s what we want in our darkest hour. We want to believe that something inside of us, some undiscovered or forgotten part, will help us look up from the darkness and rise to fight again.


And when in the dark, remember that this might be the part where you have to get up and fight.




ANOTHER EXAMPLE , shorter.

They love you like rain loves,
and in return, you love like a flood loves,
and just like a flood,
you are not in control
because that is the nature of your love,
and you have never learn to love
another way.
3 0
3 years ago
Read 2 more answers
Enzyme activity can be greatly affected by the ph and the temperature of the environment in which the enzyme must function.
Zanzabum
This statement is; True.

<em>Hope this helped! :)</em>
7 0
3 years ago
What is 16 nanometers to millimeters
Talja [164]

So to solve this problem, we are going to have to set up a couple unit conversions and then cancel units:

(\frac{16nm}{1})*(\frac{1x10^{-9}m}{1nm} )*(\frac{1mm}{1x10^{-3}m}  )=16x10^{-6}mm =1.6x10^{-5}mm

This method can be used to convert between many different units and is a very helpful tool for questions such as these.

8 0
4 years ago
Other questions:
  • Humans depend on soil, minerals, and rock. True or False?
    11·1 answer
  • What was americas first space station Gemini,Skylab,Mercury,OR,Apollo
    11·2 answers
  • The major division of the nervous system that make up the brain and spinal cord is called:
    9·1 answer
  • Which describes a group of organisms that is considered a species?
    6·2 answers
  • Trisomy 21, or Down Syndrome, is a genetic condition in which an individual has three copies of chromosome 21. This occurs when
    12·1 answer
  • Your teacher takes a candle and cuts some wax from the bottom of it. She puts the bit of wax in a beaker and places it on a hot
    10·1 answer
  • Taking charge of one's behavior and learning involves
    11·2 answers
  • Define the respatory system
    10·1 answer
  • What are the main ideas behind the cell theory? Check all the apply
    15·1 answer
  • vertical gene transfer is the transfer of dna by mutation. is the transfer of dna by crossing over. is the transfer of dna betwe
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!