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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The likely ancestors of tarsiers, monkeys, apes and humans are the omomyidae.
Omomyidae is a family of early primates that radiated during the Eocene epoch between about 55 to 34 million years ago. They had the following characteristics: <span>large orbits (eye sockets), shortened </span>rostra<span>and dental arcades, loss of anterior premolars, cheek teeth adapted for insectivorous or </span>frugivorous<span> diets, and relatively small body mass.</span>
Fossil fuels come from exactly that the ground in which fossils are found. They are not renewable.
The answer to this question is:
<span>Which of the following is characteristic of the second stage within a demographic transition?
</span><span> D-"The death rate begins to fall, but birth rates remain high for a time."
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Answer:
The ancestors of mammals diverged from ancient synapsids (reptiles).
Explanation:
The mammals have known to be evolved from a group of reptiles. These group of reptiles were known as synapsids. In fact, some scientists consider mammals as the only living synapsids. The close relativity between reptiles and mammals can hence be seen because they have common ancestors. The synapsids were known to inhabit the earth during the Permian Period.
The scientists, however, do not know from which reptiles exactly did the first mammals grow.