<span>A dichotomous key is very easy to use because it provides only two choices. </span>
Sweat, tears, skin, and mucous membranes are among the physical defenses that keep a person from being sick.
<h3>What causes infectious diseases?</h3>
Coming into contact with a person or an animal who has the virus is one of the most straightforward ways to obtain the most contagious or infectious diseases. Direct contact, such as person-to-person contact, can transfer contagious diseases. Direct transmission of bacteria, viruses, or other germs from one person to another is the primary method by which contagious diseases are typically disseminated. If someone who is unaffected touches, kisses, coughs, sneezes, or has the virus or bacterium on them, this could happen. Additionally, these pathogens can disperse through sexual contact and the exchange of bodily fluids. The person who spreads the infection may only be a carrier and not exhibit any signs of the illness.
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Answer:
Food chain shows only one part of animal and the food they consist of while food web shows different animals and different type of food they eat. Food chain is part of food web
Answer:
Well for any animal thriving and overpopulating it can cause lack of food, damaged ecosystems, and disease.
Specifically the cane toad thriving and overpopulating can cause death from their toxins and sense they are one of the biggest toads, they can effect bigger animals and even humans, lowering the population of another species and damaging an ecosystem.
Explanation:
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The answer is skin. The skin is also the largest organ in the body and has the most contact with the outside environment. It is estimated that there are approximately 205 identified genera of bacteria alone on the skin. This normal flora of the skin play significant roles in the body such as augmenting immunity.
