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
bogdanovich [222]
2 years ago
8

The diagram below shows the flow of nutrients and materials in a prairie ecosystem. If the ecosystem is a closed system, which o

f these things does not change as it cycles through the ecosystem? A. the form of matter B. the location of matter C. the total amount of matter D. all of these
Biology
1 answer:
ad-work [718]2 years ago
3 0

Answer:

B.

Explanation:

You might be interested in
How could the movement of tectonic plates create another supercontinent like Pangaea
Margaret [11]
<span>When the landmasses are again collected together in a specific area

The Pangea theory supports the theory of plate tectonics because it is based on the idea that all the present continents were one super-continent. For reasons still unknown, the super-continent got separated and created separate smaller continents. This theory also supports the fact that this movement will continue until the day arrives when all the smaller continents will again merge in a different configuration to create another super-continent. </span>
4 0
3 years ago
Which scientist is known for contributions to a scientific discipline that is different from that of the other three scientists?
svet-max [94.6K]
Acrhimedles is you answer
7 0
3 years ago
Read 2 more answers
Nucleic acids (DNA and RNA) are made of phosphorus, hydrogen, carbon, oxygen, and nitrogen.
S_A_V [24]

Answer:

A. True

Explanation:

6 0
3 years ago
Read 2 more answers
A scientist discovers a new organism that is related to clownfish. What can the scientist discover by using molecular clocks?
Margaret [11]

Answer;

C) the amount of time that the two species have been evolving apart

Explanation;

-Scientists can use relaxed-clock methods to deal with variation in the rate of the molecular clock. By measuring the patterns of evolutionary rate variation among organisms, they can also gain valuable insight into the biological processes that determine how quickly the molecular clock ticks.

- The molecular clock hypothesis states that DNA and protein sequences evolve at a rate that is relatively constant over time and among different organisms. A direct consequence of this constancy is that the genetic difference between any two species is proportional to the time since these species last shared a common ancestor.

7 0
3 years ago
Read 2 more answers
HELP ASAP GIVING BRAINLIST HELPP!!!!!}
Evgen [1.6K]

Answer:

clam

Explanation:

puffer fish is the only omnivore present in this diagram. this shows clam is eaten by pufferfish. so the answer is clam

7 0
3 years ago
Other questions:
  • At point X, only the air that is in direct contact with the sand is heated. And at point Y, only subsurface sand that is in dire
    8·2 answers
  • Which of the following statements about homologous chromosomes is correct?
    10·1 answer
  • when measuring thr lenth of an earthworm, which graduations would allow for the most accurate measurement
    15·1 answer
  • A subpopulation of plant, isolated from the main population, is found to obey the function below, describing the number of indiv
    11·1 answer
  • Some autotrophic euglena species become ______ when light levels are low
    15·2 answers
  • why would you predict that females in species with internal fertilization and long periods of gestation would be choosier in sel
    7·1 answer
  • Sports Medicine ________________ is becoming a common practice of raising clients' level of function before surgery to assist wi
    7·1 answer
  • Please help!!! The first menses is called the A. Menarche B.menopause C.climacteric D.emission E.ovulation
    9·1 answer
  • Zerbie wants to know if changing the type of music CAUSES an EFFECT on how students study. Zerbie asks 30 Psychology Superheroes
    12·1 answer
  • What can be told about the age of the fossils in the diagram?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!