Heart
Chemical
Gallbladder
Answer:
Forms of passage of substances across the blood–brain barrier. (A) Passive diffusion: fat-soluble substances dissolve in the cell membrane and cross the barrier (e.g., alcohol, nicotine and caffeine). Water-soluble substances such as penicillin have difficulty in getting through.
Biological aging refers to the aging that all people experience. Social aging refers to the aging that is specific to a person based mostly on their genes and lifestyle choices.
<h3>What is aging?</h3>
The process of maturing into an older person is referred to as ageing. The term "biological immortality" is most commonly used to refer to humans as well as a wide variety of other animals and fungi. However, some organisms, such as bacteria, perennial plants, and even some quite simple creatures, are capable of attaining this state.
The process of aging that occurs naturally in all organisms is referred to as biological aging. The term "social aging" refers to the process of aging that is unique to a person and is mostly determined by the person's genes as well as the lifestyle choices they make.
Learn more about aging , here:
brainly.com/question/1346488
#SPJ2
Answer:
It's a disease where the lungs airways are damaged, which causes a buildup of mucus and bacteria.
Explanation: