A is for sure an answer , i’m pretty sure C -ISNT- an answer . for b and c, someone can comment on it.
Answer: When the oxygen-rich blood gets to the cells, the cells receive the oxygen and release the carbon dioxide. The blood with less oxygen and a lot of carbon dioxide returns to the heart. Then the heart returns this blood to the lungs where carbon dioxide is released and oxygen is received.
Explanation:
Therefore, in Doppler Effect only the frequency and wavelength are changes and the wave speed does not change
Some limiting factors that the Orca population experienced while in captivity include food and dissolved oxygen.
<h3>What is Limiting factor?</h3>
This refers to any variable or factor in the environment which limits the population expansion of a given species.
In the case of Orca they are present in the sea and need food and dissolved oxygen to survive which is why it acts as a limiting factor due to their absence causing a decline in population.
Read more about Limiting factor here brainly.com/question/1375274
#SPJ1
Vascular plants reproduce with seeds, nonvascular plants do not, therefore it is C.
