Qualification > Sciences
Biology Paper 1 and 3 help HERE ONLY!!!
Aodian:
--- Quote from: kam on June 06, 2009, 11:22:14 am ---
--- Quote from: Aodian on June 06, 2009, 11:20:14 am ---
--- Quote from: goin4dakill on June 06, 2009, 10:52:51 am ---Also what is Zona Pellucida (reproduction)
Sorry, im being a pain.
And lets have some predictions..
there was hardly anything on plants, digestion, genes (not much), reproduction, generally not much on humans, nutrition etc..
what else
--- End quote ---
do we have to learn zona pellucida.. i've never come across it in any of the papers or the syllabus.. but here's the definition anyways..
Zona pellucida: The strong membrane that forms around an ovum as it develops in the ovary. The membrane remains in place during the egg's travels through the Fallopian tube. To fertilize the egg, a sperm must penetrate the thinning zona pellucida. If fertilization takes place, the membrane disappears to permit implantation in the uterus.
--- End quote ---
what the hell
we dont need to know that
do we?
--- End quote ---
hmm i doubt it but still you never know.. tats why jsut stick to what the syllabus needs you to know and you'll be fine.. syllabus literally tells u wat answers u need for the exams..
Gudluck!
Kim:
--- Quote from: kam on June 06, 2009, 11:22:14 am ---
--- Quote from: Aodian on June 06, 2009, 11:20:14 am ---
--- Quote from: goin4dakill on June 06, 2009, 10:52:51 am ---Also what is Zona Pellucida (reproduction)
Sorry, im being a pain.
And lets have some predictions..
there was hardly anything on plants, digestion, genes (not much), reproduction, generally not much on humans, nutrition etc..
what else
--- End quote ---
do we have to learn zona pellucida.. i've never come across it in any of the papers or the syllabus.. but here's the definition anyways..
Zona pellucida: The strong membrane that forms around an ovum as it develops in the ovary. The membrane remains in place during the egg's travels through the Fallopian tube. To fertilize the egg, a sperm must penetrate the thinning zona pellucida. If fertilization takes place, the membrane disappears to permit implantation in the uterus.
--- End quote ---
what the hell
we dont need to know that
do we?
--- End quote ---
well u do need to know wat zona pellucida is
its just the outer most layer of the egg it is jelly like.
thats all
no details
SGVaibhav:
Which one is xylem and which one is phloem?
nid404:
--- Quote from: sgvaibhav on June 06, 2009, 01:36:03 pm ---Which one is xylem and which one is phloem?
--- End quote ---
the one with the thick black border is the xylem and the other one is the phloem always
Steve13:
--- Quote from: sgvaibhav on June 06, 2009, 01:36:03 pm ---Which one is xylem and which one is phloem?
--- End quote ---
always remember xylem has a thicker wall ..in the diagram with border
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