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
weeeeeb [17]
2 years ago
6

Why do birds and humans have a 4 chambered heart

Biology
2 answers:
Basile [38]2 years ago
3 0

Explanation:

so there blood can go in and out of there arteries and ventricles

anygoal [31]2 years ago
3 0

Answer:

Explanation:

Because the 4 chambered heart prevents the mixing of oxygenated blood from the lung and deoxygenated blood from the body. However, In 3 chambered heart , both oxygenated and deoxygenated blood gets mixed.

You might be interested in
Which of the following phase changes would release energy as it occurs?
bezimeni [28]


B evaporation because the partacals r moveing

 

6 0
3 years ago
Read 2 more answers
Why are microdeletions and microinsertions difficult to diagnosis using karyotyping?
Harman [31]
Because only the chromosomes can be seen in a karyotype, and microdeletions or insertions are mutations at the molecular level, it is virtually impossible to detect such mutations at the chromosomal level. 
8 0
2 years ago
Read 2 more answers
Meteorites formed a long time ago in the early solar system.<br> True or False
zalisa [80]

Answer:

True.

Explanation:

This is true because Meteorites originate range from 4.5 billion years old to 200 million years old.

3 0
2 years ago
Read 2 more answers
Eukaryotic organisms speed up the process of dna replication by
stiks02 [169]

Answer:

using multiple origins of replication on each chromosome

Explanation:

8 0
2 years ago
The most massive star known in the universe is thought to be R136a1, which may be as much as 256 times the mass of our sun. What
VashaNatasha [74]
Nuclear reaction fission powers the both of them
5 0
2 years ago
Other questions:
  • Passive transport is the act of a molecule moving freely down its concentration gradient. true or false
    8·1 answer
  • I need the answer someone help
    6·1 answer
  • Before starch can enter a cell, it must be
    14·2 answers
  • Organelles Quick Check
    10·1 answer
  • The biggest risk factor for the development of skin cancer is excessive exposure to ultraviolet radiation from sunlight. Exposur
    13·1 answer
  • How do fossils help scientists learn about the history of life
    8·1 answer
  • PLEASE HELP!! I WILL GIVE BRAINLIEST BUT I DONT HAVE MUCH POINTS! What are the characteristics (wind? precipitation, vegetation)
    8·1 answer
  • HELP NEED ASAP!!!!! GRADES R GOING IN PLEASE HELP ME!!!!!
    6·1 answer
  • Excess fertilizer runoff into the ocean can lead to excess plant growth and algal bloom, and eventually lead to dead zones cause
    7·2 answers
  • Carbon dioxide is read I ly soluble in water.according to the equation CO2+H2O TO H2CO3. carbonic acid (H2CO3) is a weak acid .i
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!