Answer:
<h2><u>
Median</u></h2>
Explanation:
The <u><em>median </em></u>is the value separating the higher half from the lower half of a data sample. For a data set, it may be thought of as the "middle" value. For example, in the data set {1, 3, 3, 6, 7, 8, 9}, the median is 6, the fourth largest, and also the fourth smallest,
Hair follicles is the hair coming out of the subcutaneous layer
Answer:
pulmonary artery, so option 4
Explanation:

1) Fine flour and lumpy flour - B) Sieving
2) Mixed nuts - A) Handpicking
3) Sand and gravel - B) Sieving
4) Sand and palay - B) Sieving
5) Scrap iron and nail - C) Using magnet
(mark me brainliest if you're satisfied with my answer :))

I am going to assume it mean what i think it does and say <span>A) Predation</span>