Search found 30 matches

by NewtoBiology
Wed Sep 17, 2008 4:57 am
Forum: General Discussion
Topic: development of plants vs development of animals.
Replies: 3
Views: 6223

Re: development of plants vs development of animals.

Hello Actually I know considerable amounts about meristems. I understand that they are embryonic plant tissue in the tips of roots and in the buds of shoots that supply cells for the plant to grow in length. The problem is that pattern formation can be defined as the ordering of cells into specific ...
by NewtoBiology
Sat Sep 13, 2008 1:19 am
Forum: General Discussion
Topic: development of plants vs development of animals.
Replies: 3
Views: 6223

development of plants vs development of animals.

hello biologists I have a question for homework which I have researched and toiled over. I have put endless hours into it, and just before handing it I am wondering if some of you can help me out. Please see my answers and reasoning in bold below. Q: which of the following best explains why one of t...
by NewtoBiology
Sat Sep 13, 2008 1:12 am
Forum: Botany Discussion
Topic: water transport in plants.
Replies: 3
Views: 6207

water transport in plants.

Hello Plant Biologists. Would someone be so kind as to explain which of the following two sentences is false. 1. weak bonding between water molecules and the walls of xylem vessels or tracheids helps support the columns of water in the xylem 2. Gymnosperms can sometimes develop especially high root ...
by NewtoBiology
Sun Jun 29, 2008 1:04 pm
Forum: Cell Biology
Topic: DNA replication
Replies: 2
Views: 2998

Thank you very much Mr.Mistery.

I will definitely add that between 4 and 5 to make my lagging strand description complete.

Thank you for your time and explanation!!

New to Biology
by NewtoBiology
Sun Jun 29, 2008 1:59 am
Forum: Cell Biology
Topic: Biochemistry help?
Replies: 3
Views: 7668

Biochemistry help?

Hello Biologists I am just studying exergonic and endergonic processes (WHICH FRIGHTFULLY sounds like chemistry!!!) butI am wondering if anyone can help verify if my rational is correct. Glycolysis: the breakdown of glucose is an exergonic process. Lactic Acid Fermentation: endergonic process due to...
by NewtoBiology
Sun Jun 29, 2008 1:54 am
Forum: Cell Biology
Topic: DNA replication
Replies: 2
Views: 2998

DNA replication

Hello, I am a new biology student, and I am wondering if someone can double check my listed order of DNA replication, which I have created to make sure I am chronologically correct, prior to me memorizing all the steps 1. Helicase begins unwinding DNA 2. Primase catalyzes the formation of an RNA pri...
by NewtoBiology
Sat Feb 09, 2008 5:19 pm
Forum: Microbiology
Topic: Prokaryotes!
Replies: 4
Views: 3617

I mean that prokaryotes can be autotrophs, photoautrophs, chemoautotrophs, heterotrophs, whereas eukaryotes are not.
by NewtoBiology
Sat Feb 09, 2008 3:43 pm
Forum: Microbiology
Topic: Prokaryotes!
Replies: 4
Views: 3617

Prokaryotes!

Hello everyone, If anyone could throw some ideas at me I would be so grateful!!! I am studying prokaryotes and their nutritional diversity in comparison to eukaryotes. My question is WHY are prokaryotes so much more nutritionally diverse?? I can imagine it is due to: a. single celled, simpler struct...
by NewtoBiology
Mon Feb 04, 2008 5:09 am
Forum: Evolution
Topic: bilateral symmetry and evolution of our brains
Replies: 1
Views: 4433

bilateral symmetry and evolution of our brains

Hello everyone, I have just finished studying invertebrates, and have learnt the importance of bilateral symmetry and the affect on aggregation of neurons at the head end of organisms. SO I've been thinking (yikes my biology wheels are turning!) obviously this change from asymetrical to bilateral sy...
by NewtoBiology
Sat Jan 26, 2008 5:15 pm
Forum: Evolution
Topic: Phylogenetic trees vs cladograms.
Replies: 3
Views: 40855

Phylogenetic trees vs cladograms.

Hello again, Well I have come to the end of my evolutionary section but can't quite wrap my head around the difference between phylogenetic trees and cladograms. The more I re-read the text and research on the internet I get more confused. I realize that a phylogenetic tree are diagrams which specif...
by NewtoBiology
Sat Jan 26, 2008 1:22 pm
Forum: Evolution
Topic: allopatric vs sympatric speciation HELP!
Replies: 7
Views: 26322

Thank you so much for all your help!!
by NewtoBiology
Fri Jan 25, 2008 3:49 pm
Forum: Evolution
Topic: allopatric vs sympatric speciation HELP!
Replies: 7
Views: 26322

Thank you Mith, After looking at the bird example again it is clear that the two species behave differently. One type of bird feeds in the trees and has a nest up high, while the other bird feeds off the ground and has a nest in the rushes. This behavior would indicate evolution due to sympatric spe...