Which of the following statements illustrate how fossils record the evolution of defensive mechanisms over time? which ever one is true right true under it. Fossils after the Precambrian period show evidence of legs and eyes, indicating that the presence of predators stimulated the beginning of animal diversity.

Fossils that are found in cold arctic environments are known to belong to an animal species that once lived in much warmer climates.

Many marine fossils have high contents of silica and calcium, which indicate the use of these materials to encase the bodies of organisms.

Fossil body parts of an animal and its location of excavation confirm that these animal species underwent minimal adaptations from one period to the next.

sorry, but you do not have posted the diagram.

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

i hope this you

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.