Biology - December 2007

1) describe the events that take place during each phase of interphase .

2) list four type of events that take place in a eukaryotic organism , such as a deer , that riquire cell division .


THANKS

2007-12-18 13:19:59 · 2 answers · asked by sweethoney9079 4

2007-12-18 13:16:48 · 2 answers · asked by Derrick H 1

a. Persons who are heterozygous for sickle-cell disease are also resistant to malaria.
b. About one in 10 African Americans is a carrier of sickle-cell disease.
c. Sickle-cell disease is common in tropical Africa.
d. Sickle-cell disease causes white blood cells to be sickle shaped.
e. All of the symptoms of sickle-cell disease result from the actions of just one allele.

2007-12-18 13:00:21 · 5 answers · asked by Anonymous

are color-blind. What is the best explanation of this result?

a. The gene for color vision is incompletely dominant to the gene for sex determination.
b. The gene for color vision is linked to the X chromosome.
c. The gene for color vision is codominant with the gene for sex determination.
d. The gene for color vision is completely dominant to the gene for sex determination.
e. The gene for color vision is linked to the Y chromosome.

2007-12-18 12:50:36 · 2 answers · asked by ursportsguy 1

We trained planaria the always turn left in a maze.

Are these the Controlled variables, or is it unnecessary information?:
-all planaria were given the same task to learn
-leads were stimulating each planaria for the same length of time, and were held at the same distance ((we shocked them with leads and a battery))
-all planaria used the same T-Maze
-planaria started the maze at the same spot
-were shocked at first sign of a right turn

Did I miss anything, or added something useless?

2007-12-18 12:27:00 · 2 answers · asked by C'est Comme Un Rêve 3

please answer these.

1 how do sponges and cnidarians get food?

2 wat r 3 common things of flatworms and roundworms?

3 compare the body plan of a flatworm to a roundworm.

4 y would spongin and spicules discourage preatitors from eating sponges?

5 some sponges and cnidarians reproduce asexually. why is this beneficial to them?

thank you

love,
person who wrote this on his wii

2007-12-18 12:09:32 · 1 answers · asked by popstam 4

Explain please

2007-12-18 11:15:17 · 3 answers · asked by Anonymous

2007-12-18 10:15:04 · 1 answers · asked by Anonymous

2007-12-18 09:59:36 · 4 answers · asked by rory2ryan 1

i came up with several reasons such as no controversy, companies might loose money, requires energy, and the people have the right to know what they are eating and how it was made

but i need more reasons.......thanks!

2007-12-18 09:48:05 · 3 answers · asked by zestful12 4

2007-12-18 08:19:52 · 3 answers · asked by housecat57 1

please help essay do on friday this 12/21/07

2007-12-18 07:34:16 · 4 answers · asked by ~*SpAnKy*~ 1

I cant seem to figure out what blanks go with which, please help!

-regeneration
-chromosome
-mitosis
-chromatin
-budding
-binary fission


~________ is used for the growth and repair of tissues
~In mitosis, each ______ replicates itself
~The process where an organism can grow new body parts is called ________
~Bacteria divide and produce new bacterial cells by the process of ________
~_______ describes DNA in the "resting state", when it is long, then and stringy.
~When a parent organism develops a growth on its outer surface and that growth breaks off to form a new organism it is called ___________


Thankess!

2007-12-18 07:17:29 · 7 answers · asked by Anonymous

2007-12-18 05:54:17 · 20 answers · asked by Anonymous

What's the difference between a vein and a venule?

2007-12-18 04:49:18 · 4 answers · asked by english 2

A.

hypertonic

B.

isotonic

C.

hypotonic

D.

eqilibrium

2007-12-18 04:29:46 · 4 answers · asked by angelprincessprincessmela 1

A.

osmotic pressure.

B.

osmosis.

C.

facilitated diffusion.

D.

active transport

2007-12-18 04:25:12 · 0 answers · asked by angelprincessprincessmela 1

I'm confused by the word "complementary", I don't know whether to use thymine for adenine or uracil (think thats the correct u-word spelling). Help greatly appreciated!

2007-12-18 04:20:45 · 6 answers · asked by Anonymous

If evolution is true, then why aren't there humans in various stages of evolution today? Scientists claim that we evolved from apes, but there are no skeletons of "the missing link". Why aren't there living examples of "Cro-Magnon Man"?

2007-12-18 03:46:27 · 17 answers · asked by LC 5

I need help with my biology powerpoint

2007-12-18 03:36:36 · 7 answers · asked by Anonymous

2007-12-18 02:46:41 · 6 answers · asked by Kathleen H 1

What is the difference between Codominance and Incomplete Dominance?

I am Looking for the Difference NOT THE DEFINITIONS!!!

2007-12-18 02:39:52 · 5 answers · asked by almedmat 2

The following data illustrates the relative locations of 4 genes on a chromosome:
Genes: A & D Frequency of Crossover: 5%
Genes: B & C Frequency of Crossover: 15%
Genes: A & C Frequency of Crossover: 30%
Genes: A & B Frequency of Crossover: 45%
Genes: B & D Frequency of Crossover: 50%

Which of the following represents the relative positions of these 4 genes on the chromosome?

A. BACD

B. ADCB

C. BCAD

D. CBAD

E. DCAB

2007-12-18 02:32:03 · 1 answers · asked by stevie 1

Distinguish the difference between phenotype and genotype, along with an example.

2007-12-18 00:54:03 · 2 answers · asked by K Rose 3

2007-12-18 00:16:04 · 7 answers · asked by Jameesha B 1

If they swim around in salt water all day - why do they not suffer from excess salt levels like humans?

2007-12-17 23:27:48 · 10 answers · asked by Anita C 1

2007-12-17 23:18:57 · 2 answers · asked by Anonymous

I seriously hate cockroaches, they are the most disgusting, gross, creatures to ever set foot on Earth. I'm sure many of you people out there hate cockroaches with a passion as much as I do, yet, they have survived for millions of years since first evolving in the Carboniferous period. Don't any of you people wish that they died along in the Permian mass extinction which killed about 90 percet of all species on Earth?, or died along with the Dinosaurs?, I just hate cockroaches with such a passion, thats why I have bought Raid recently. Man, are cockroaches really that tought to exterminate?, man, it's like the Devil created them.

2007-12-17 22:39:51 · 7 answers · asked by introvertedguy06 6

thank you for your time please approach this with a open mind, nothing is impossible only highly improbable.

Is D.M.T linked to death,

dmt- hallucinogenic drug

produced in the human brain, is involved in certain psychological and neurological states. As DMT is naturally produced in small amounts in the brains and other tissues of humans, and other mammals,[10] some believe it plays a role in promoting the visual effects of natural dreaming , and also near-death experiences. it is released into the blood stream up death, our brain is alive for 10 to 15 minutes upon death. is it linked to death?

is this a possible answer to a great question?

would it scare you?

2007-12-17 22:39:14 · 2 answers · asked by Anonymous

2007-12-17 22:38:00 · 6 answers · asked by Ant s 1