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
Paul [167]
4 years ago
9

When do the respiratory and circulatory systems work together?

Biology
1 answer:
GaryK [48]4 years ago
4 0
D to supply nutrients
You might be interested in
What happens to carbohydrates during cellular respiration
just olya [345]
Carbohydrates are broken down and they release energy.
4 0
4 years ago
Describe what is happening in terms of atoms and bonds in this chemical reaction
erica [24]

The atoms are going through decomposition.They are breaking apart into the elements they are made of.

3 0
3 years ago
Can someone help me with this?
Lina20 [59]
Independent variable: FERTILIZER.
 This is the variable that you think affect your dependent variable and so you change it and use different types of it to confirm your prediction.
Dependent variable: COLOR.
That is the variable you are interested in.
Hypothesis: THE TYPE OF FERTILIZER USED IN CULTIVATING HYDRANGEA FLOWER AFFECT THEIR COLOR.
 An hypothesis is a generalized statement which predicts the relationship between the variables you are examining. 
Control group: THE GROUP THAT DID NOT GET ANY FERTILIZER
The control group is the group that does not receive any treatment. 
Experimental groups: THE GROUPS THAT RECEIVED FERTILIZERS.
The experimental group is the group that receives treatment. 
Constants: TYPES OF SOIL USED, MORNING SUNLIGHT, WATER AND THE NO OF DAY THE EXPERIMENT LAST.
The constants are the inputs into your experiment which you give to all the groups.

7 0
3 years ago
Read 2 more answers
The energy-producing, or energy-storing, molecule is called<br> ОАТР<br> protein<br> O glucose
ycow [4]

Answer:

Atp, because it literally Powers the cell.

7 0
3 years ago
Read 2 more answers
Energy in an ecosystem flows directly from
Allushta [10]

energy enters an ecosystem through photosynthesis. By feeding on plants and on one another, animals play an important role in the movement of the matter/energy though. they also influence the quantity of plant and biomass present. so the anwser is D, secondary consumers to tertiary consumers

6 0
4 years ago
Read 2 more answers
Other questions:
  • Match the correct term with the appropriate description. the maximal potential reproductive capacity of an individual in a popul
    14·1 answer
  • Is the answer C "4cm to 46cm"?
    5·1 answer
  • Plants that are more rare today are _____.
    14·2 answers
  • The zones of the marine biome are determined by light penetration, distance from shore, and depth. Please select the best answer
    12·1 answer
  • Recent studies indicate that the addition of iron to areas of the ocean could increase productivity. Increased productivity coul
    8·1 answer
  • Owls and hawks both eat rodents.They are also found in the same habitats.Since no two populations can occupy exactly the same ni
    7·1 answer
  • Why might it be important to the survival of a species that mutations to dna cause changes in organisms?
    14·1 answer
  • Which factor should be the same in all three groups?
    15·1 answer
  • Which statement correctly compares the "Analysis" and "Conclusion" sections of a lab report?
    5·1 answer
  • Please help<br> 1) What process determines the<br> potential of species to<br> increase in numbers?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!