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]
3 years ago
6

Why do birds and humans have a 4 chambered heart

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

Explanation:

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

anygoal [31]3 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
A cell that consists of a 65% salt concentration is placed in a solution with a 27% salt concentration. What will happen to this
zzz [600]

Answer:

The correct answer would be - the cell will get water and expand.

Explanation:

If a cell with a higher salt concentration is placed ins a low salt concentration solution then the water will move through the cell membrane into the cell and the cell will swell or expand.

Water always moves from a low solute concentration to a high concentration area, therefore, if the cell has more salt concentration than outside the cell water move inside the cell which leads to an increase in the water concentration inside the cell and expands its size.

3 0
3 years ago
Which of the choices below is the parent cell for all formed elements of blood?
Ostrovityanka [42]

Answer:

The hemocytoblast  (option B) are the parent cell for all formed elements of blood

Explanation:

All blood cells are originated from a common stem cell, which is called a pluripotent stem cell. It is capable of giving rise to any of the blood cells maintaining its existence through mitosis. By dividing pluripotent stem cells, new cells are originated, which become multipotent and differentiate into lymphoid (NK cell and the polymorphonuclear cell) or myeloid cells (megakaryocite); always respecting the original quantity.

7 0
4 years ago
How long does it take for a hypothesis to become a theory
Charra [1.4K]

Answer:

Null hypothesis have a tendancy of never raise to that status. Yet, if a hypothesis is tested and prooven to aply having an universal vocation of being aplyed thrn it could become a Postulate

4 0
3 years ago
PLEASY HURRY 35 POINTS
Alecsey [184]

it is c because i just took the test

3 0
3 years ago
Blology Period 3
musickatia [10]

Answer:

Label A

✔ nucleus

Label B

✔ cytoplasm

Label C

✔ ribosomes

Label D

✔ DNA

Label E

✔ cell membrane

Explanation:

5 0
3 years ago
Read 2 more answers
Other questions:
  • What change to the atomic model helped solve the problem seen in Ruthfords model
    13·1 answer
  • The salt concentration in a cell's cytoplasm is 0.9%. The cell is placed in a 10% salt solution. Which term best describes the 1
    14·1 answer
  • What is a change in the genetic code called?
    7·2 answers
  • Which of the disorders below is characterized by destruction of the walls of the alveoli producing abnormally large air spaces t
    15·1 answer
  • Many alcohols are made using a fermentation process where the bacteria and materials are sealed without oxygen. These bacteria u
    6·1 answer
  • In the image, the tree is light-colored. What type of adaptation does this
    13·1 answer
  • what do the shrimp and fish gain from the shrimp cleaning the fish mouth? why doesn’t the fish eat the shrimp ?
    12·1 answer
  • Which of the following is NOT an example of a plant adaptation towards success in
    14·1 answer
  • What are some of the challenges with using solar energy?
    11·2 answers
  • Question:<br> Which of the following is the best description of an observation ?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!