What a cheater. I have the same school paper, same questions. Look it up, do the work yourself. Wow.
Uh, I have the paper as well and I've looked everywhere. I can't seem to find the answers on my own and sometimes people need help getting answers to get the grade. That doesn't make them a cheater, the person is looking for higher intelligence for help. Jeez.... Sorry I don't have an answer, I need one too...
tides, the mating, hunting and life cycle of millions of species. and debateably, human psychological behavior
There are many, many species of earthworm. The Common Earthworm, which is the species I think most are used to seeing belongs to the species Lumbricus terrestris.
Its species is a terrestrish and it's Genus is Lumbricus
no
Phylum arthropoda is the most diverse in species, with the highest count known of described species in any animal phylum. Over a million species under the phylum have been described and biologists estimate that millions of species have yet to be described, particularly amongst the insects.
The NPS attempts to preserve natural ecosystems and interspecies relationships. The NPS attempts to control or eliminate non-native species when they threaten native species.
The NPS attempts to preserve natural ecosystems and interspecies relationships. The NPS attempts to control or eliminate non-native species when they threaten native species.
Gee...fifteen-pound rats? There are poisons that will kill them, but they kill desirable species too. Alligators like eating nutria but Louisiana is thick with both nutria and alligators. Mountain lions will also eat nutria, but they like eating people's dogs better. AND you have to import mountain lions.
Trying to control an introduced species can keep the populations down on overpopulated creatures and keep the ecosystem stable. It can also be bad if the species gets over hunted and populations get low.
pesticides or any other chemical
That is a Keystone Species.
Charles Darwin's contribution to the field of biology was the theory of evolution due to natural selection. This attempts to explain how species adapt to their environments, sometimes leading to the development of new species.
they keep populations under control
Biological control is the use of a pey species to control pests and parasites i.e. to use Encarsia formosa the Chalcid wasp to control Whitefly. This avoids the use of pesticides.
Kudzu is an evasive species introduced to Mt. Everest to help with erosion control. The kudzu crowds out the native species and prevents them from flourishing.
biological control
They maintain biodiversity.