Answer : Option C) vestigial structures.
Explanation : In the example of whales which is displaying the remnants of the pelvis and femur bones it seems to be the example of vestigial structures.
As vestigial structures are those anatomical feature which no longer seems to have a purpose in the current form of an organism of the given species.
Answer: A because before used to be fossils.
Not shure just double check but from my side its A
Explanation:
Red Blood Cells would take up 41% of the blood's overall volume.
Answer:
its either C or D, im not sure bc im in 6th
Explanation:
Antigens are substances capable of mobilizing the<u> </u><u>IMMUNE SYSTEM</u>
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<u>Your answer would be: </u> IMMUNE SYSTEM
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<u>Hope that helps! </u> : )