Answer:
squamous epithelium consists of a single layer of flat cells. It is found in lungs,heart and blood vessels.It allows the movement of materials across it.
stratified epithelium has many layer of flat cells.It is present in lining of oesophagus and mouth and also over the skin
Answer:
To reach and fertilize an egg, sperm must move — wriggling and swimming through a woman's cervix, uterus and fallopian tubes. This is known as motility. You're most likely to be fertile if at least 40% of your sperm are moving.
Explanation:
The ability to reproduce
The ability to respond to stimuli .
The 2nd one may be a bit confusing but people who do not respond to stimuli eg they have CIPA or are blind or deaf can still survive
The answer to this question is soften tooth enamel becuase your teeth fall out