Answer:
seashell-used to be ocean
Palm branch-used to be tropical island
Cactus-unchanged
Insect in sap-used to be forest
Shark tooth- used to be underwater
A convex mirror is used to look under a vehicle during security check because it provides a wider field of view and the images formed are virtual but smaller and upright. The correct option among all the options that are given in the question is the third option or option "C". I hope it helps you.
The body's nonspecific defiance against invading pathogens is known as innate immunity and includes the following:
mechanical barriers and surface secretions
1. The intact skin and mucous membranes of the body. These provide a high degree of protection against pathogens.
2. The sebaceous secretions and sweat of the skin contain bactericidal and fungicidal fatty acids that can kill bacteria and fungi.
3. Normal bacterial flora of the skin may produce various antimicrobial substances such as bacteriocines and acids.
Humoral defence mechanisms
1. Lysozyme. This is an enzyme found in most tissue fluids apart from cerebrospinal fluid, urine, and sweat. It can kill bacteria.
2. Interferon. Inhibits viruses from replicating
3. Complement. This is a heat labile serum that can destroy gram-negative bacteria.
The answer should be letter B I'm sorry if not
Answer:
The axonal membrane (place as brainliest so others know its correct)
