| What is the biological definition of a species? The organisms that can breed and produce fertile offspring
Why is this definition important to this naming system? The basis for the genus name is organisms that are very close genetically but cannot interbreed. Higher levels, like families of genera (genuses), are less related than genera of species, and members of an order (families) are even less related
What are the goals of the binomial nomenclature system? Give an example. To arrange living things according to their evolutionary relationships. Two species (Homo sapiens and Homo erectus) diverged more recently than two genera (Homo and Australopithecus). The common ancestor of two families in an order (such as ape and man) lived more recently than the common ancestor of two orders (primate and insectivore) of a class that branched after the classes in a phylum (mammals and birds)
2. Explain why ... when nutrients are high then oxygen is low, and vice versa). The more oxygen, the more life present and the more nutrients extracted.
3. Most of the advances in marine biology have come in the last 200 years. What do you think are the reasons for this? Better technology: Submersible explorers, DNA typing and cladistics, electron microscopes, polymerase chain reaction, radiodating, etc.  |