Answer:
The answer is B. They both tell you how fast the object is traveling.
Explanation:
Sorry if this is wrong. Just trying to help!
Answer:
I think it's C, but I could be wrong. So DON'T hold me accountable for it lol.
Explanation:
Answer:
By using specialized external systems.
Explanation:
To maintain homeostasis, unicellular organisms grow, respond to the environment, transform energy, and reproduce.
It’s false, sickle cell anemia is about erythrocytes
Answer:
Ralph is looking at a vein (likely a muscular vein).
Explanation:
Of all three great types of vessel present in vertebrates (arterial, venous, lymphatic), only veins and lymphatic vessels may normally contain valves. This is an essential feature of vessels which present low pressure flow, since it ensures that such flow is unidirectional.
Since blood cells are not typically found in lymphatic vessels, the vessel in question can be assumed to be a vein.