Answer:
stratum corneum
Explanation:
Keratin is a structural protein that builds up hair, skin and nails.
The stratum corneum is the outer most layer of the epidermis that contains Keratinized cells. It serves as the primary protective barrier. Its thickness varies throughout the body .
The hair shaft is the part of the hair seen above the skin. Just like the stratum corneum , it is also made up of the protein keratin compacted and fused together.
Answer:
A. a cell process that releases energy from food
Explanation:
I would say internal stimulus of hunger but Idk
A random sample is not biased
Answer:
In humans, both sperms and ova contain 23 chromosomes.
Explanation:
During fertilization, the diploid chromosome number 46 is regenerated in the zygote. After 24 hours of fusion, human zygote starts to divide by mitosis, commencing the embryonic period. The zygote is divided into 2-cells, 4-cells, 8- cells and then 16-cells