Is to work in a well ventilated area since the fumes are very dangerous
Answer:
B. polyphyletic group
Explanation:
Polyphyletic group is a taxon which comprises of organisms which are unrelated and do not share a recent or immediate common ancestor. Polyphyletic group is often used to refer to a group of organisms with similar characteristics called homoplasies, but not inherited from a common ancestor. This means that the organisms are of multiple origins irrespective of the traits that make them similar.
Therefore, from the question, because we do not consider ourselves fish, we would describe the group "fish" as polyphyletic.
Layer D is the youngest layer
Answer:
It drains into a larger lymph trunk, which returns it to the subclavian veins.
Explanation:
Evidence for evolution, in other words evidence of common descent, include fossils, which have shown a (fairly) steady change in morphology over time for some species. An example would be horse hooves: we have fossils that show when they were still three toed, then two toed, then one toe in our present day horses. Another piece of evidence is vestigial organs. An example of vestigial organs is wings in some flightless birds, such as the kiwi. Their ancestors used it in order to fly across the marine barrier into New Zealand, but natural selection and random genetic drift made them quickly lose the ability to fly. Nonetheless, they still have their wings, however small. It can be assumed that eventually, their wings would be reduced to small stubs fused to other nearby bones, as has been observed in their cousins.
