Answer:
HERE
Explanation:
The structure of the skin Is the biggest bone in our body and it protects our exoskeleton
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.
1) a five carbon ribose sugar
2) a phosphate molecule
3) one of four nitrogenous bases: adenine, guanine, cytosine or uracil
Since the hemlock and spruce trees are old, they are K-strategists. K-selected species, or K-strategists, are species that produce only a few offspring that live for a long time. r-selected species, or r-strategists, on the other hand are able to produce more offspring which survive for a shorter period of time.
Answer:
The sun is nearly above you in the mornings, which makes your shadow short. In the evenings, the sun is nearly beside, infront or behind you, do you shadow is a lot longer.
Explanation:
