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
ANTONII [103]
3 years ago
5

why is the ventricle a stronger muscle than the atria? When blood leaves the ventricle and goes to the body, why isn't the blood

100% oxygenated (in a frog)?
Biology
1 answer:
Charra [1.4K]3 years ago
3 0
First answer is , as the work of ventricle is to push blood to he whole body , so it has to be strong or it can not pump blood to head to the toe !

as in frog (an amphibian ) it has only three chambers as two artia and one ventricle, so the oxygenated blood from left artia and deoxygenated blood from right , combines and thus partial oxygenated blood is circulated !
You might be interested in
Prior to the arrival of a signal from a presynaptic input, the post-synaptic membrane is polar with a greater relative _________
fredd [130]

Answer;

-Positive charge

Prior to the arrival of a signal from a presynaptic input, the post-synaptic membrane is polar with a greater relative positive charge to the ECF

Explanation;

-Neurons talk to each other across synapses. In somatic neurons, an action potential arrives at the synapse causing synaptic vesicles to fuse with the presynaptic membrane. The pre-synaptic membrane releases acetyl choline via exocytosis into the extracellular of the synaptic cleft.

-The ACh diffuses across the cleft and binds to the ligand-regulated sodium channels. Activated sodium channels allow a rapid diffusion down its electrochemical gradient towards the ICF. The movement of positive charges to the ICT causes the relative charge across the membrane to become positive on the inner surface.


4 0
3 years ago
The oxygen atom in a water molecule has a slightly negative charge due to its polarity. True or false
alina1380 [7]

Answer:

True.

Explanation:

6 0
3 years ago
Read 2 more answers
Which of the following is not a similarity between green algae and plants
Dafna11 [192]
Do you have options to pick from
4 0
3 years ago
Which of the following is not a potential concern associated with the use of biotechnology?
Alik [6]
<span>The option which is not a potential concern associated with the use of biotechnology is the production yields of GM foods, whereas the other options are quite dangerous when you think about them. Genetic ownership means that somebody could steal your genes and use them for cloning, which is another option here. Trainsgenic foods also have to be kept safe, so as to stop someone from messing with them. The production yields of GM foods is not the problem, the problem is whether that food is healthy or not.</span>
4 0
3 years ago
A researcher claims that all living cells must be able to synthesize proteins in order to maintain homeostasis and perform basic
Vesna [10]

Answer: Option B) Nuclei house the DNA, which is the blueprint for proteins. Cell types I, II, and III can synthesize proteins.

Explanation:

All the genetic information that determines the traits expressed in an organism are loaded up within the DNA sequence. Hence, several genes that codes functional proteins are derived from the DNA, making DNA a blueprint for protein synthesis.

Thus, Cell types I, II, and III with DNA can synthesize proteins.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Are fungi heterotrophs
    10·2 answers
  • 15 POINTS!!<br> What are some of the environmental factors that cause the formation of rocky coasts?
    8·1 answer
  • What effect does an insertion or deletion have on the protein that is being manufactured?
    15·2 answers
  • Select all that apply. Which of the following were developed during World War II?
    9·2 answers
  • Which is an example of dehydration synthesis?
    11·1 answer
  • A man with Type A blood marries a woman with Type AB blood. According to predicted outcomes based on genetics, their children ma
    15·2 answers
  • T
    6·2 answers
  • The endosymbiotic theory suggests that a prokaryotic cell ate another prokaryote, giving rise to eukaryotes.
    12·1 answer
  • Any and all of the actions performed by an organism, often in response to its environment or to the actions of another organism.
    13·1 answer
  • Where does respiration and photosynthesis take place in the cell.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!