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
sveta [45]
3 years ago
9

Heart is to the _____ system as lungs are to the ______ system

Biology
1 answer:
elixir [45]3 years ago
5 0
The answer is A. The heart pumps blood through the circulatory system, and the lungs help the oxygen transport throughout the respiratory system. :)
You might be interested in
Is RNA a nucleic acid that helps build proteins
IceJOKER [234]

DNA is just one type of nucleic acid. Some other types are RNA, mRNA, and tRNA. All of these "NAs" work together to help cells replicate and build proteins. ... RNA stands for ribonucleic acid.


5 0
3 years ago
Identifying Cloud Types
dybincka [34]

Answer:

\huge\red{\boxed{\mathfrak{Hello}}}

Huh? You have already given the answer.......Anyways, the attached picture is an example for a stratus cloud ☁️.

8 0
3 years ago
Read 2 more answers
A pea plant that has round seeds has the genotype Rr. It is crossed with a pea plant that has wrinkled seeds and the genotype rr
Anika [276]

Answer:

50%

Explanation:

I used a punnet square

have a good day :)

8 0
3 years ago
Read 2 more answers
Which category contains the majority of stars?
Svetlanka [38]
<span>HR-diagram the most populated.</span>
8 0
3 years ago
What percent of species become extinct when mass extinction occurs?
777dan777 [17]

Answer:

Scientists estimate that at least 99.9 percent of all species of plants and animals that ever lived are now extinct.

Explanation:

(Happy to help)

6 0
3 years ago
Other questions:
  • Very aggressive pathogens such as the bacterium responsible for tuberculosis can easily overwhelm the protective features of the
    11·2 answers
  • Which is a function common to both the muscular and skeletal systems? breaking down of food bending of the arm production of blo
    8·2 answers
  • You are able to fluorescently label a cell in a chick embryo and watch it over the course of a few days. On the first day, the c
    14·1 answer
  • Is there a relationship between crystal size and intrusive rocks
    11·1 answer
  • A type of diffusion that uses a protein carries for larger molecules like glucose to enter the cell
    14·1 answer
  • Define zygote as it is used in biology
    8·2 answers
  • I NEED HELP ASAP! Which of the following is true of variation?
    15·2 answers
  • What does a medical assistant do?
    8·2 answers
  • 4. Where do producers get the energy to make energy storage molecules from?
    9·2 answers
  • Assign the various toppings you put on pizza to the appropriate domains and kingdoms. ...
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!