One requirement for natural selection would be the variation or differences of heritable traits being observed in a select group of organisms, allowing for better adaptability and ultimately survival of the said group or category of organisms.
Epithelial cells best suited for resisting abrasion and preventing pathogen entry into deeper tissues are stratified squamous epithelial cells.
Stratified cells are layered cells, squamous cells are flat and epithelial cells are covering cells. Therefore, stratified squamous epithelial cells are flattened, layered covering cells arranged on a basement membrane.
Stratified squamous epithelial cells have very little to no intercellular spaces which prevent pathogen from passing through and entering into the deeper tissues. They are well suited for resisting abrasion because the uppermost layers are subsequently sloughed off and replaced before the basement membrane is exposed. These types of cells form the outermost layer of the skin.
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The muscular system helps move blood, and keep your posture upright, the skeletal consists of the ligament, tendon, joins, and muscular the muscle. They work together to relax and contract with each other.
Answer:
Quality
Explanation:
HERE IS THE QUESTION;
The goal of meeting economic and humans needs is to improve _____ of life.
In economics, need are things required
to survive. They are things individuals can not afford to live without them. These could be adequate nutritional food, appropriate healthcare as well as water and protective housing. It could also be physical and economic security, and basic education.Social reproduction is essential in satisfying human needs. Changes in the economic needs can be known through state of reproduction. It should be noted that the goal of meeting economic and humans needs is to improve quality of life
I think it is A because the genes of the eyes and the body are different