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
strojnjashka [21]
3 years ago
5

Which is a closed system.a tree, a human ,a clock , or a car

Biology
1 answer:
melomori [17]3 years ago
4 0
A closed system is a system that makes no physical or chemical exchanges with its environment. Of these systems provided as choices (tree, human, clock, car), only a clock does not make exchanges with the environment, except for energy.
Therefore, of that list, only a clock would be a closed system.
Hope that helped! =)
You might be interested in
What is the function (or role) of ATP in a cell?
Ghella [55]

Answer:

energy

Explanation:

4 0
2 years ago
Read 2 more answers
What is the different type of atoms present in an amino acid, glucose, and a nucleotide?
Vilka [71]

Answer:

The key elements of an amino acid are carbon (C), hydrogen (H), oxygen (O), and nitrogen (N).

Glucose is a hydrocarbon, so it contains carbon (C), and hydrogen (H). It also contains oxygen (O).

Nucleic acids are complex arrangements of carbon, hydrogen, oxygen, nitrogen, and phosphorous.

Explanation:

hope this helps :)

7 0
3 years ago
Complete the sentence : to organisms that are the same species can _____ and produce ____.
SOVA2 [1]

Answer: can <u>mate</u> and produce <u>offspring</u>

6 0
3 years ago
Diastole is:
rewona [7]
Diastole is when the ventricles relax and fill with blood
4 0
3 years ago
What is the biggest factor in determining whether lava will resist flowing?
Sonja [21]
The change of temperature lava cools down/seconds it flows down.
8 0
3 years ago
Other questions:
  • What is the equation for photosynthesis ~ Branliest
    8·2 answers
  • Adding lemon juice to milk curdles it and changes the taste. Which is the best explanation for this change?
    11·2 answers
  • When the digestion and absorption of carbohydrates result in more energy-rich molecules than are immediately required by an anim
    11·2 answers
  • What can biodiversity contribute to an ecosystem?
    14·1 answer
  • If two things go well together, we may say that they are ___________
    12·2 answers
  • Order of events when a volcano erupts
    13·1 answer
  • How long does it take for a ziploc to biodegrade
    15·1 answer
  • Which of the Jovian planets are ice planets? i Uranus and Neptune Mercury and Venus Neptune and Venus Saturn and urhus​
    8·1 answer
  • If pressure per square inch increases by 14.5 pounds for every 33 feet below the ocean surface how much pressure would be felt I
    6·1 answer
  • Discuss crop intensification and how you would improve on it
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!