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
inessss [21]
2 years ago
8

Melissa and ashley play tennis every afternoon. Twenty minutes into the game they both start to breath heavy, sweat, and feel th

eir heart beat faster. which two body systems are working together to cause these reactions?
A. Digestive and Reproductive
B. Respiratory and Circulatory
C. Endocrine and Urinary
D. Nervous and Digestive​
Chemistry
1 answer:
marysya [2.9K]2 years ago
6 0

Answer:

B. Respiratory and Circulatory

I'm pretty sure

Explanation:

You might be interested in
Who can tell me the half reaction about cucumber battery
xeze [42]
I've prepared some analysis and <span>cucumbers do have many comparable properties to potatoes, tomatoes, and lemons, all of which I know do work. So I would presume that cucumbers would also work. I would recommend trying it yourself to perceive. I'd love to hear the outcomes of your experiment. ;) </span>
6 0
2 years ago
A teaspoon of powdered caffeine can be as deadly as a teaspoon of ricin. <br><br> True or False
Darina [25.2K]

A teaspoon of caffeine is <em>NOT</em> deadly as teaspoon of ricin                                                                                                            

4 0
3 years ago
Read 2 more answers
The half-life of radioactive element krypton-91 is 10 seconds. if 16 grams of krypton-91 are initially present, how many grams a
earnstyle [38]
10 seconds = 8grams
then just divide by 2 another 4 times...
 = 0.5grams after 50 seconds
6 0
3 years ago
The reaction of nitrogen with methane in excess oxygen produces water, ________, and ___________. N2(g) + O2(g) + CH4(g) → CO2(g
IrinaVladis [17]

Answer:

C.

Explanation:

3 0
2 years ago
In which grouping of the periodic table do the elements have simliar properties
STatiana [176]
I would have to say [c]

but it could also be [b]

3 0
3 years ago
Read 2 more answers
Other questions:
  • If 32.3 grams of KCl are dissolved in 192 grams of water, what is the concentration of the solution in percent by mass?
    14·2 answers
  • Elements that have their outermost shells filled are stable structures that are chemically...?
    5·1 answer
  • What is the purpose of a switch in an electrical circuit?
    13·2 answers
  • A bowling ball of 35.2kg, generates 218 kg.M/s units of momentum. What is the velocity of the bowling ball?
    9·1 answer
  • If white light shines on an object and the red, orange, green, blue, indigo, and violet light is absorbed. What color does your
    11·2 answers
  • In volumetric analysis, how does one convert concentration from g/dm3 to mol/dm3?
    10·1 answer
  • Which substances are released during cellular respiration?
    10·1 answer
  • Which describes the molecule below?
    10·1 answer
  • If there is no external force on a moving object, it will
    9·1 answer
  • How is hydrogen an example of an element?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!