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
Alex17521 [72]
3 years ago
12

Explain the differences in heartbeat rates? Why do they exist?

Biology
2 answers:
Ilia_Sergeevich [38]3 years ago
7 0

Answer:

A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness. For example, a well-trained athlete might have a normal resting heart rate closer to 40 beats per minute.

Explanation:

I HOPE IT HELPED

vekshin13 years ago
7 0
The heart rate is the number of times the heart beats in a minute. This is the number of times it pumps to push blood round the body. The heart rhythm is the pattern in which the heart beats.
You might be interested in
Hepatitis d virus is described as a defective virus because it cannot reproduce in a cell unless the cell is also infected with
Nadusha1986 [10]
HBV.
Is your answer
8 0
3 years ago
Please help! How does the circulatory system work at the tissue level?
Scrat [10]

Answer:

B

Explanation:

The circulatory system is a network consisting of blood, blood vessels, and the heart. This network supplies tissues in the body with oxygen and other nutrients, transports hormones, and removes unnecessary waste products.

6 0
2 years ago
Read 2 more answers
20 word summary on part 1 for “Fahrenheit 451”
MissTica
How many chapters are in part 1 then I can assist you!
5 0
3 years ago
I need help asappp plzzzzz I need help filling in the squares for the top and bottom punnet square
Nina [5.8K]
Nicki is the queen of rap ok iwgdowgos yes owvdodbi wish isgdow owgbhh soften sostén i when is he i ishiev is he osteoblasts
5 0
3 years ago
Read 2 more answers
The mitotic phase of the cell cycle is the combination of mitosis and what other process?
professor190 [17]

Answer:

the cell cycle

Explanation:

Image of the cell cycle. Interphase is composed of G1 phase (cell growth), followed by S phase (DNA synthesis), followed by G2 phase (cell growth). At the end of interphase comes the mitotic phase, which is made up of mitosis and cytokinesis and leads to the formation of two daughter cells.

5 0
2 years ago
Read 2 more answers
Other questions:
  • Which of the following genotypes is homogeneous recessive? ss, Bb, TT, or XY
    10·2 answers
  • Explain 2 important differences between the structure of dna and the structure of rna.
    8·1 answer
  • What observation did Darwin make that suggested there had been geological changes in Earth's history?
    12·1 answer
  • _______________ are a family of antianxiety drugs that includes diazepam (valium) and alprazolam (xanax).
    10·1 answer
  • The bladder is an organ in the excretory system. What is the function of the bladder?
    5·2 answers
  • What’s wrong with a gorilla if she won’t eat and interact with other gorillas in the zoo
    15·1 answer
  • What happens when previous adaptations are no longer suitable for. changes in the environment
    7·1 answer
  • The ecosystem on the coast of Virginia Beach will likely experience the highest amount of disturbance from —
    13·1 answer
  • 7. Indicate which stage of mitosis is occurring in each of the images above and describe what is
    5·1 answer
  • Characterization of the leptospiral outer membrane and description of three novel leptospiral membrane proteins
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!