Human is just what we called ourselves, so if we evolved to look like an alien from star wars we might still call ourselves "human"
This question isn't very specified but i'm pretty sure by the context the answer is gonna be tree frogs.
Answer:
The skin provides a protective layer for the inner organs, helps to regulate temperature, water balance, receives sensory stimuli, produces vitamins, etc.
Explanation:
The integumentary system can be defined as an organ system composed of different organs, i.e., skin, hair, exocrine glands, nails. The skin helps in homeostasis by providing a protective layer for the inner organs, contains immune cells involved in immune responses, regulates temperature, water balance, receives sensory stimuli, production of vitamins. The skin contains sensory receptors for different stimuli including touch, pain, pressure, and temperature (both heat and cold receptors). The inflammatory response (inflammation) occurs when harmful microorganisms penetrate the skin, thereby causing skin inflammation. The skin's immune cells include, among others, neutrophils (located in the reticular dermis), macrophages (papillary and reticular dermis), T lymphocytes (epidermis and papillary dermis), Langerhans cells (epidermis), etc.
Answer:
im gonna go with a but if it is wrong then i am sorry
Explanation:
I suppose it is the density, having more pockets of air in between the granules of sawdust. Air has oxygen. What does a fire need to strive? Oxygen.
