The screenshot attached has the answers :D
I know this is late, but if anyone needs to look it up here's a quality answer. (I hope)
Sorry if I'm wrong! Hope I could help in some way.
((I did research for this))
- ollie
Was it well and clean the area around it
Answer:
the last choice.
Explanation:
veins have valves because venous pressure is often not great enough( as the blood must overcome gravity and other forces) to return the blood to the heart.
valves mainly prevent the back flow of blood.
The correct answer is choice 2. tumors that grow fast and spreading to neighboring tissues. Malignant tumors or cancerous tumors are tumors that grows and multiply to become cancer overtime. This tumors are due to the high unstable abnormal cells that travels in the blood stream.
Answer:
I think the correct answer would be dhdvdidjndkssbks.and 8.9fbdjdosbsowouhshsksbusgxhdidhdy maybe if u understand that fjdhdhdh is equal to shsrs6aiwoqknab you would know the answer so I hope this helps
Explanation:
bc the asked said so shshdhdbdjdbdiana end bsueveuevievekebei ❤