Sweat, mucus, tears, and saliva all contain enzymes that kill pathogens.
Answer:
it represents the mating between males and females is shown by a horizontal line between their respective symbols.
Explanation:
I believe it would be c not exactly sure tho
<span>Human skin color is a polygenic trait, which means that multiple gene loci (with different alleles) are involved in its expression. It has been shown that there more than 350 genetic loci involved in determining skin color. Because of that, there is the enormous number of possible genotypes for the skin color and as a result, the phenotypes vary from the darkest brown to the lightest hues.</span> <span> Different populations have different allele frequencies of genes for human skin color, and the combination of these allele variations brings about complex and continuous variation in skin coloration. Natural skin color can change due to exposure to sunlight (becomes darker) and that is the way it adapts to intense sunlight irradiation (protection against the UV exposure).</span>
The correct answer is 'Active Transport'. when the concentration of particles is higher inside the cell and yet for proper functioning we need more ions, the ions are received by the cell by the means of active transport, in which dissolved substances are moved by the help of carrier proteins with the energy released from respiration.
