Answer: digestive is the correct answer
Answer:
A hair follicle anchors each hair into the skin.
Explanation:
The hair bulb forms the base of the hair follicle. In the hair bulb, living cells divide and grow to build the hair shaft. Blood vessels nourish the cells in the hair bulb, and deliver hormones that modify hair growth and structure at different times of life.
During nitrogen fixation, bacteria breaks nitrogen gasses down into a usable form for plants.
Answer:
pulmonary artery, so option 4
Explanation:
Answer:
amphibians because it is a cold blooded vertebrate and has aquatic gill breathing larvea
Explanation:
