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
3241004551 [841]
2 years ago
11

The system brings molecules to the cells. It includes blood vessels and the heart.

Chemistry
1 answer:
makkiz [27]2 years ago
3 0
I think it’s the circulatory system. it delivers oxygen and nutrients to the cells and pumps blood to the heart. hope this helps:)
You might be interested in
Simplify - Factor a
Dmitriy789 [7]

Answer:

Option 1

Explanation:

Option number 1 is the most compact one which indicates it is a solid

7 0
2 years ago
Whose cell walls may contain cellulose can be plantlike, animal like or fungus
lapo4ka [179]

Answer:

I'm not sure

Explanation:

sorry wish that I did tho

8 0
3 years ago
What is the mass of calcium in 2.3•10^23 molecules of calcium phosphate
Katena32 [7]

Explanation:

N(Ca)=3×N(Ca₃(PO₄)₂)=

=3×2.3×10²³=6.9×10²³

6.02×10²³→40g

6.9×10²³→Xg

m(Ca)=X≈45.85g

3 0
3 years ago
What is an isotope? Explain why isotopes having different number of neutrons are still considered to be the same element on the
Mazyrski [523]

Isotopes of any given factor all incorporate the equal variety of protons, so they have the identical atomic wide variety (for example, the atomic wide variety of helium is usually 2). Isotopes of a given factor include exceptional numbers of neutrons, therefore, special isotopes have special mass numbers.

3 0
3 years ago
Read 2 more answers
Question 4 Unsaved When writing electron configuration the 3d block comes after the 4s block. Question 4 options: True False
zmey [24]

Answer:

True

Explanation:

According to Aufbau's principle "sublevels with lower energies are filled up before those with higher energies".

Sublevels do not fill up in numerical order but there is a certain manner in which they are filled. The pattern is shown below:

  1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p e.t.c

 We see that the 4s gets filled before the 3d sublevel.

6 0
3 years ago
Other questions:
  • Calculate the molarity of a solution that contains 0.175 mol of zncl2 n exactly 150 ml of solution.
    7·2 answers
  • Separates substances based on their movement through a special paper
    10·1 answer
  • What does the specific heat for a substance indicate?
    8·1 answer
  • Which level of an energy pyramid has the most energy available?
    14·1 answer
  • Salt is disstilled in a flask of tap water. Distilling the mixture cause the salt to seperate from the water. Which type of ener
    15·1 answer
  • What are three examples of solutions?
    13·2 answers
  • Conclusions drawn from personal beliefs are:
    6·2 answers
  • What are the main organs for the respiratory system?
    13·1 answer
  • Which molecule is methylamine?
    12·1 answer
  • The Development and Characterization of Carbon Nanofiber/Polylactic Acid Filament for Additively Manufactured Piezoresistive Sen
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!