Answer:
Explanation:
It is called a double circulatory system because blood passes through the heart twice per circuit. The right pump sends deoxygenated blood to the lungs where it becomes oxygenated and returns back to the heart. The left pump sends the newly oxygenated blood around the body.
1. Variations
2. Extinction
3. Behavioral
4. Functional
5. Structural
Answer:
A
Explanation:
I know this because I just took the test and got it right.
Answer:
The answer to your question is 4. The earth has four oceans.
Explanation:
The four oceans that we have are: The Pacific, Atlantic, Indian, and Arctic.
Hope this helped! God bless.
Helps build two main Characteristics out of two choices to classify and unidentified organism
