Jump to content

Featured Replies

  • Replies 237.9k
  • Views 3.1m
  • Created
  • Last Reply

Top Posters In This Topic

Posted Images

Viruses:

Non-Cellular (no cell membrane/cytoplasm)

essentially a protein coat surround strands of DNA or RNA - no chromosomes

Can only reproduce and metabolise inside a host cell, outside of a host they are completely inactive.

no membrane bound nucleus (obviously)

They are always parasitic

Bacteria:

Prokaryotic: no membrane-bound nucleus or organelles

cellular - cytoplasm and cell membrane present

cell wall of peptidoglycan

not always parasitic - can be free living or have a mutualistic relationship with an organism (E. coli in gastro-intestinal system)

can be treated against by antibiotics

Usually contains a single DNA chromosome

organisms are usually single-celled and reproduce asexually

Protists (for some reason they seem to be called Protozoa a lot, I think it's a specifically pathogenic section of the Protista kingdom - not sure though):

Eukaryotic - membrane-bound nucleus and organelles dedicated to specific takes (e.g. mitochondria - respiration)

can be found as single cells or living in colonies

reproduce asexually

hetero- or auto-trophic

usually aquatic (no cell wall- easy to dry out)

Fungi:

Eukaryotic

usually multicellular (not usually found as discrete cells)

can reproduce by fission (yeast) or by spores (mushrooms)

saprophages - live off decaying dead matter

do not usually infect the body, when they do it is usually a systemic infection (hard to get rid of)

cell walls made of chitin

resemble plant cells in appearance but do not have chlorophyll

Hmm, ok I counter biology with literary theory.

 

Jacques Derrida explains that the intermediary is the tool by which we attempt to reach the thing itself, but ultimately we fail to do so. Moving from Nietzsche's premise on "Truth and Lies in a Nonmoral Sense" by which we understand that human society is a bunch of liars that have decided to forget that words are mere representations (what Derrida calls intermediaries from Rousseau), Derrida explains that Rousseau's intermediaries are insufficient bridges that contain no part of the thing itself that is, irretrievably, removed from us through language.

Moreover, Nietzsche treats the idea of sensory intermediaries, or the idea that any sensory input is removed from the thing itself. All senses operate via neural bridges that remove the subject from the thing. Thus, our bodies are liars, and truth unobtainable.

 

hehe, thanks! I do like to randomly jettison spare thoughts to clear some room for more :wink:

Edited by Jonas

I shall try regain some face amongst these intellectuals by noting some stuff from Alexander the Great which I'm supposed to be doing my homework on now :P

Proskynesis began as a Persian gesture of blowing a kiss, together with a deep bow as a mark of respect to the king, which later became to mean total prostration, lying flat on ones face.

And I can't go on cos my brother needs to take the wifi router to the shop to get fixed graaaaah :madmyrddraal:

 

what have you people done to that poor thing?

I have given you TWO Gr 9 helpers… please delegate work to them

 

MWAHAHAHA MWAHAHAHAHHAHA

 

I have minions :baalzamon:

Theses be teh first cloudbeastehs I has seen in days

 

there have been lots of them here, also lots of blue sky, so not much to complain about seeing as it's winter.

 

but it's nice to know the beach holiday is working out

micro-organisms can have symbiotic relationships with larger organisms. These relationships can be mutualistic (both organisms benefit) or parasitic (only the micro-organism benefits, the host is detrimented)

Beneficial micro-organisms:

Microbes are involved in the carbon (breaking down) and nitrogen (atmospheric nitrogen fixing) cycle. They are also involve in producing vast quantities of Oxygen and control the earth's biomass (break dead stuff down)

 

the community of microbes that live inside the human gastro-intestinal tract are called microflora

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...