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
qwelly [4]
3 years ago
11

What is the main function of the circulatory system?

Chemistry
2 answers:
likoan [24]3 years ago
4 0
B- is the answer


Hope this helps


Have a nice day~
kati45 [8]3 years ago
3 0
I believe the correct answer would be B
You might be interested in
Which has triple Bond C2 H4 C3 H6 and C3 H4​
expeople1 [14]

Answer:  C3H4 (Propayne) have a triple bond.

Explanation:

The hydrocarbons which having triple bond are called alkyne. The general formula of alkyne is CnH2n-2. Here, n is number of carbon atoms.

In alkyne, the number of hydrogen atom is 2 less than double the number of carbon atoms.

Thus, the compound C3H4 (Propyne) have a triple bond.

7 0
3 years ago
Consider the balanced equation.
viktelen [127]
28.4% is the answer and that is ur answer
8 0
2 years ago
WHAT IS A PLACE WHERE BOOKS ARE CLASSIFIED! I NEED HELP!
jasenka [17]

Answer:

From the Online Catalog to the Shelf

Libraries in the United States generally use either the Library of Congress Classification System (LC) or the Dewey Decimal Classification System to organize their books. Most academic libraries use LC, and most public libraries and K-12 school libraries use Dewey.

Explanation:

5 0
3 years ago
Read 2 more answers
He nitrogen cycle is one of the most important (and complex!) of the biogeochemical cycles. Why is nitrogen important?
gayaneshka [121]

Nitrogen is an essential part of proteins and nucleic acids (DNA).

<h3>Why is nitrogen important?</h3>

All living things require nitrogen. It is a part of proteins, ATP, chlorophyll, DNA, and RNA. Given that it makes up a significant portion of the structures of biomolecules in living organisms, its synthesis and consumption in the biogeochemical cycle are of highest importance. Proteins are made up of amino acids (NH2 group).

The structural development of living species' genetic material (DNA, RNA) also involves nitrogen. It is a part of the nitrogenous bases, which together with other nucleotides create RNA and DNA.

Therefore, a nitrogen deficit can cause major structural issues for such an organism.

<h3>What happens if nitrogen cycle is disrupted?</h3>

A number of undesirable consequences can result from the nitrogen cycle being disrupted. For instance, an abundance of nitrogen in aquatic systems leads to eutrophication. Acid rain can be caused by a rise in atmospheric nitrogen.

The majority of ecosystems can tolerate low nitrogen levels since the majority of nitrogen is not biologically accessible in nature. Ecosystems become out of balance when humans significantly increase the quantity of nitrogen that is accessible through fertilizers, fertilizer use, and other means.

Learn more about importance of nitrogen here:

brainly.com/question/14728440

#SPJ4

7 0
2 years ago
Which substance is needed in order for this biochemical reaction to occur?
Anna35 [415]
What biochemical reaction??
4 0
4 years ago
Other questions:
  • 6th grade help me pleaseeee
    6·2 answers
  • Describe what happens to the size of atoms of the elements as you go across a row and down a column in the periodic table. expla
    8·1 answer
  • If an atom has 8 valence electrons, how many electrons does it need to gain to achieve a stable electron configuration?
    15·2 answers
  • A potassium isotope has a half-life of 1.25 billion years. Given that scientists estimate Earth's age to be 4.6 billion years, w
    7·1 answer
  • If you change the number of an atom has, it becomes a different element. If you change the number of it has, it becomes a differ
    8·1 answer
  • Solar energy is energy from the Sun that is converted into thermal or _____ energy. A. Nuclear B. Mechanical C. Electrical D. Ch
    8·1 answer
  • 5.22*10^-3 = ?*10^-2
    10·1 answer
  • A wave has a frequency of 35 Hz and a wavelength of 15 meters, what is the speed of the wave?
    6·1 answer
  • All plants bear flower (true or false)​
    5·1 answer
  • Ammonia, NH3, is made in the direct reaction between nitrogen and hydrogen. If 280. grams of nitrogen are used,
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!