Answer:
A. The spleen filters pathogens from blood
Explanation:
-The spleen is sometimes called the “filter of the blood”
-It works closely with the circulatory system for transportation needs and the lymphatic system for production of lymphocytes.
This colored pigment is known as Hemoglobin. Hemoglobin is contained in the red blood cells of vertebrates and gives these cells their red color.
Answer:
D. A butterfly predator sees yellow more easily than it does green, and a population of butterflies includes both phenotypes.
Explanation:
The butterflies would attempt to stop being attack by evolving to have many more green butterflies.
I believe the answer is B because carbon can easily form chains to bond together.
Anton Von Leeuwenhoek verified Robert Hooke's discovery of cells.