I think it is C, since it sounds the most reasonable.
External or internal and an example is how you feel about yourself I think
Answer:
4. Pathogens enter and multiply in body tissues.
Explanation:
When pathogen penetrates the host defenses, infection occurs in the host. Infection is a disease of the body that is caused by invasion and multiplication of pathogens (infectious biological agents that causes diseases or illnesses to the host) such as bacteria, viruses, parasites and so on normally not found with the body. They can easily spread from their point of origin if not contained due to the multiplicability of the pathogens causing it.
Answer:
<em>B. Many of these substances, when eaten, cause serious health problems over time.</em>
Explanation:
Electronic wastes are unwanted electrical or electronic material that has been thrown out by the user to be managed by waste managers. Mismanagement of electronic wastes can lead to a serious threat from the heavy metal deposit, this can affect the environment and humans.
During recycling, some of the heavy metal such as lead, cadmium, and Mercury is released to surrounding water bodies also direct disposal of such waste can result to increase of such metals.
As a large amount of heavy metal enters the river, it gets accumulated in the tissues of fishes overtime. Long term consumption of fishes that are affected by heavy metal poisoning can lead to some health-threatening issues such as;
<em>Therefore when fishes are affected by lead poisoning they affect human when eaten over time.</em>
