Think of the number of different parasites (species of bacteria, viruses, fungi, flatworm, apicomplexan, etc.) that can attack humans. is it reasonable to expect that every other organism faces a similar array of parasites? no--most species should have a single, generalist parasite. (generalists can exploit more than 1 species.)no--most species should have a single, specialist parasite. yes, humans are a relatively young species so should have a relatively low number of parasites. yes--every species represents a resource that may be exploited by an array of parasites

The correct answer will be option-Yes--every species represents a resource that may be exploited by an array of parasites

Explanation:

Parasites are the organism which for survival depends on the resources of the host organism and utilize them to the extent that it could lead to the death of the host.

The interaction between the parasite and host proves harmful to the host but beneficial to the parasite.

A number of parasites exist for human species which can directly harm humans. Similarly, a large number of hosts exist for different species which belongs to another kingdom also like even the bacteria has a parasite called bacteriophage which utilizes the resources of the host.

This indicates that every species has some resources which can prove beneficial to another organism in the response of which they become host to a large number of parasites.

Thus, the selected option is the correct answer.

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

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