Biology - February 2007

"At the beginning of winter, a friend suggests skating on a large local pond. Explain, using scientific reasoning, the need to be cautious about the thickness of the ice."

I HAVE THAT PART ^^^
The way water freezes from top to bottom.

It's this part I need help with:

"Identify two biological processes that depend on the same principle."

2007-02-04 09:10:14 · 1 answers · asked by Bella Vega 1

Where is a good site to read about this.

2007-02-04 09:01:48 · 3 answers · asked by Anonymous

can someone please tell me

2007-02-04 09:00:17 · 2 answers · asked by f_i_f_o 2

2007-02-04 08:57:43 · 1 answers · asked by Ricky j 2

2, 4, 5, or 6 (my choice)

2007-02-04 08:42:03 · 3 answers · asked by hollie michele 1

name of organism, ancestry of organism, nomenclature, dichotomy of a system of classification.

2007-02-04 08:39:39 · 1 answers · asked by hollie michele 1

2007-02-04 08:37:38 · 5 answers · asked by Anonymous

I was doing a Lab on Bacteria so I couldn't figure out this question at all.

2007-02-04 08:37:28 · 2 answers · asked by Ka Youa H 1

My 8th grade bio class created a model of a cell membrane using dialysis tubing. We filled it with a stock solution of sugar,salt,water,and starch. We placed it in a beaker of distilled water. After 20 mins. we tested the beaker solution for traces of the stock solution. The tests showed that the cell membrane let everything diffuse but the starch. Now i understand why this all happens I'm just struggling on how dialysis tubing is a good model for a cell membrane , and a bad one. Any help would be appreciated!

2007-02-04 08:20:56 · 7 answers · asked by Anonymous

common name, scientific name, binomial, polynomial.

2007-02-04 08:11:28 · 6 answers · asked by whatsinaname07 1

resolving power

magnification

contrast

resolving power, magnification, and contrast.

2007-02-04 08:09:56 · 3 answers · asked by whatsinaname07 1

1X, 10X, 100X, 1000X

2007-02-04 08:08:34 · 2 answers · asked by whatsinaname07 1

electrons are used instead of light

magnetic lenses replace glass lenses

electron path has to be maintained in high vacuum

all of above are true

2007-02-04 08:07:36 · 2 answers · asked by whatsinaname07 1

demonstrate your understanding of cell division processes through a creative writing exercise.
whrite a biographical essay that recounts the story
Gene, an unassuming sequence of DNA found on
a modest chromosome un
typical cell whose life is turned upside down when the cell divides.Essay should include description of Gene's experience during G1,S and G2 phases of interphase,
the phases of mitosis, and cytokinesis, i need to use proper terminology in describing the different events and
stages of the cell cycle.please i need like basic idea..i dont need you to write the whole essay i need a helper for it.

2007-02-04 08:05:49 · 2 answers · asked by jouliette 1

2007-02-04 07:59:31 · 3 answers · asked by Anonymous

2007-02-04 07:44:47 · 3 answers · asked by *believe_it* 4

2007-02-04 07:33:45 · 5 answers · asked by Ron I 1

2007-02-04 07:25:36 · 2 answers · asked by pumpkin 2

2007-02-04 07:17:52 · 15 answers · asked by sayifkhan 1

2007-02-04 07:16:27 · 2 answers · asked by Anonymous

2007-02-04 07:15:22 · 1 answers · asked by x_prettyin_punk 1

2007-02-04 06:47:34 · 4 answers · asked by Rachael F 3

Actinomyces
Bacillus
Corynebacterium
Listeria
Mycobacterium

2007-02-04 06:42:47 · 3 answers · asked by Steenskees 2

In most of the protocols i am reading stated that blood should be overlayed carefully on top of ficol layer. Mixing should not be done. Why is it so?

2007-02-04 06:37:08 · 1 answers · asked by BrInGiToN 2

Please Help Me--- I really don't get Genetics : )

2007-02-04 06:25:10 · 4 answers · asked by LUV Life_123 2

Hemophilia is a sex-linked disorder carried on the X chromosome. A woman who is a carrier of hemophilia has the genotype X^H X^h also referred to as heterozygous for the trait. A man who has hemophilia is represented as X^h Y. A woman who is heterozygous for hemophilia marries a normal man. What will be the possible phenotypes of their children? How likely is it that their son will inherit the disease?

I got from a Punnett Square that they will all have hemophilia but I am not sure...I think I messed up somehow.

2007-02-04 06:20:29 · 2 answers · asked by Audy 1

2007-02-04 06:08:22 · 22 answers · asked by Anonymous

2007-02-04 05:38:20 · 3 answers · asked by jackie s 1

what is the process in which one strain of bacteria has been changed into another?

2007-02-04 05:36:50 · 1 answers · asked by Joan L 2

2007-02-04 05:23:22 · 2 answers · asked by Anonymous