Looks like the question is asking how evolution of a specific species affects humans negatively.
<span>Think of co-evolution examples such as predator-prey and host-parasite relationships.
</span>One example that comes to mind is <span>the use of pesticides in agriculture. It has driven the evolution of resistant insects, requiring the use of harsher chemicals in greater quantity to kill them. This can have a harmful effect on agriculture and in turn affect humans negatively. Does that makes sense?</span>
Human somatic cells have 46 chromosomes, including 22 homologous pairs and one pair of nonhomologous sex chromosomes. This is the 2n, or diploid, condition. Human gametes have 23 chromosomes, one each of 23 unique chromosomes. This is the n, or haploid, condition.
1) This system makes your skin water-resistant. When you get wet, the water beads on the surface of your skin because of this system. The epidermis system within the integumentary system is what makes this happen.
2) It helps you maintain body temperature. Because of thermoregulation, your body maintains a steady temperature. If it didn't the chemicals in your body could be offset. Also, when your body temperature rises, your skin produces sweat that evaporates and works to cool you down.
Tobacco smoke contains dozens of carcinogen
Birds live virtually everywhere on Earth because they have evolved endothermy, the ability to use their metabolism to maintain a constant body temperature.
Birds belong to the class aves; they have an extremely efficient, one way breathing system with additional air sacs. Flying birds have strong, hollow bones and powerful flight muscles. Most birds can fly, they have a strong heart and an efficient way of breathing; which are necessary for birds to fly.
