Biology - November 2007

(1) inbred organism
(2) hybrid
(3) wild type
(4) F2 generation

2007-11-26 15:40:35 · 4 answers · asked by Anonymous

(1) blood type
(2) height
(3) sickle-cell
(4) cystic fibrosis

2007-11-26 15:36:03 · 2 answers · asked by tnawee 1

trait. the man sues his wife for divorce on grounds of infidelity. can gentics profive evidence supporting his case? pleaseee help!

2007-11-26 15:24:41 · 5 answers · asked by Anonymous

Which of the following statements about water-soluble vitamins is NOT true?
An example is vitamin A, found in yellow colored vegetables.
An example is folic acid, found in liver.
An example is riboflavin, found in milk products.
They are continuously excreted with the urine.


From ingestion to elimination, which list is NOT in the correct order?
mouth, pyloric sphincter, duodenum, cecum
esophagus, stomach, jejunum, ileum
pharynx, stomach, cecum, ileum
esophagus, pyloric sphincter, jejenum, ascending colon

2007-11-26 15:14:33 · 2 answers · asked by Anonymous

Biology help needed, I'm stuck on this one problem. thanks a lot.

2007-11-26 15:11:26 · 3 answers · asked by Dimples 5

electron carriers that pass energized electrons on to the electron transport chain....

2007-11-26 14:47:06 · 3 answers · asked by Nicki 2

i have 2 empty spaces on my crossword puzzle about cells

15.This molecule makes up he framework of the lipid bilayer.
2. The lipid ____ forms the frame work of the cell membrane.

if you know these answers please let me know thanks

2007-11-26 14:38:56 · 4 answers · asked by katlin_104 1

In cellular respiration, series of reactions that break down glucose and produce ATP....
______ energizes electron carriers that pass energized electrons on to the electron transport chain.

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What is the step or name of that process? Please help!

2007-11-26 14:31:50 · 5 answers · asked by Anonymous

Are glomerular capillaries more permeable or less permeable than other capillaries? MORE
Why is this important?

Is the blood pressure within glomerular capillaries high, low or average?
Why is this important?

2007-11-26 14:28:04 · 3 answers · asked by Anonymous

I have read that it kills people because of the final oxidation product of ethylene glycol which is oxalic acid. But oxalic acid is in some teas and some people drink massive amounts of tea and i don't see them dropping dead. Others have said that it is an like an alcohol and disrupts the central nervous system much more than ethanol. And there is no real definite answer as to why is kills a person. Also some say its because of oxalic acid deposits of calcium stop the kidneys from extracting urea and other chemicals thus leading to renal failure but this process is a bit slow and thus not the quick mechanism of death.And another reason is that it causes metabolic acidosis which would cause somebody to breathe rapidly, not really killing you unless its too acidic but that would have to be a pretty low ph.So i would like to know the real cause of death stage by stage and what causes death and not just a heart attack but the reasons behind it and what not.Im curious and it has bothered me

2007-11-26 14:27:02 · 0 answers · asked by Anonymous

"You were accidentally served a salad at your Aunt Tutu's house over Thanksgiving that contained leaves of an experimental spinach plant. All we know is that the plant had received a treatment of 3H (tritium) and that it (3H) has been found in the sweat (H2O) released from your body as a by-product of aerobic cellular respiration. Provide a plausible but detailed explanation as to how the tritium made its way into your H2O? Be specific in your explanation. Hint: The plant came from the lab of Dr. Van Niel.

Help Please!! I don't understand the question!!

2007-11-26 14:14:54 · 5 answers · asked by Anonymous

a. ATP synthesis b. cell growth c. cellular respiration d. enzyme activity e DNA replication
2. if a cell has 20 chromosomes how many chromatids will be present during prophase?
3. what event typically begins in anaphase & is completed by the end of telophase? a. alignment of chromosomes @ cell equator b. packing of DNA into well defined chromosomes c. dna replication d. cytokenesis
4. how many nuclear membranes must form when a single dividing cell reaches telophase? a. 4 b. 1 for each chromosome c. 2 d. 1 for each pair of chromosomes e. 1
5. what is 1 of the differences between cell divion in plant 7 animal cells? a. plant cells seperate chromosomes by attachment to the plasma membrane b. there is no dna replication before cell division in plant cells c. plant cells do not use a mitotic spindle to seperate chromosomes d. plant cells seperate by growth of a cell wall & membrane in the middle of the cell e. in a plant cell, there is no nucleus around the chromosomes

2007-11-26 14:00:23 · 3 answers · asked by 4N6girlie 1

PLEASE be specific or give me a link thank you!

2007-11-26 13:53:37 · 6 answers · asked by Keep your head high. :) 5

2007-11-26 12:35:24 · 2 answers · asked by Anonymous

2007-11-26 12:33:59 · 1 answers · asked by Anonymous

How many chromosomes does EACH new nucleus have compared to the number of chromosomes contained by the original cell in prophase1 !!! please answer !!!

2007-11-26 12:20:23 · 1 answers · asked by asad a 1

2007-11-26 11:33:20 · 6 answers · asked by david w 2

I know your heart pumps and the blood gets moved along in veins and arteries and etc, but if the blood is just circulating throughout a tunnel, how does it reach your organs, muscles, etc....

It sounds like a dumb question but they never told us in school throughout the years

2007-11-26 11:28:26 · 5 answers · asked by ? 5

1. In the spring of the year maple trees are tapped for sap to make sugar. True/False and why?
a.)True, maple trees are tapped in the spring because the sap begins to flow and the starch that was stored in the roots all winter changes back into sugar
b.)False, maple trees are not tapped in the spring because after the winter there is not enough sap to bother extracting. It must build up through the spring and summer.
c.)False, maple trees are tapped in the fall to ensure that the tree has enough energy stored to make it through the winter.

2. Potato beetles do not eat the tubers of the plant which man uses; they feed only on the leaves. Why take the trouble to poison the beetles then?
a.)Because beetle dung causes the potatoes to have a bitter flavor
b.)Because if the leaves are destroyed no photosynthesis takes place and the plant has no extra food to be stored as a potato
c.)Because the beetles burrow into the potatoes to lay their eggs

2007-11-26 10:00:17 · 5 answers · asked by . 2

and what is the species for squid?

2007-11-26 09:44:34 · 1 answers · asked by brendenchoi_312 2

2007-11-26 09:13:27 · 6 answers · asked by Ryan T 1

2007-11-26 08:49:29 · 3 answers · asked by Po 5

I understand about calories expended versus calories taken in. I have seen all the charts that tell you how many calories are burned in a wide variety of activities...from housework, to yardwork, to dancing, climbing stairs, etc.

What I'm trying to find out is HOW are these calculations done? Is there someone with a clipboard measuring calories expended during sex to establish that standard? And if so how is he measuring it? Off-the-wall example, I know...but that's what I'm trying to learn.

Thanks.

2007-11-26 08:09:31 · 3 answers · asked by kathy_is_a_nurse 7

most cactuses have spines, which are leaves modified to protect the plant. the spines cover juicy stem that stores water. explain how cactus leaves and stems might have changed through the process of natural selection.

2007-11-26 08:09:01 · 5 answers · asked by Anonymous

Or when we read about it or talk about it or anything?

2007-11-26 07:29:55 · 3 answers · asked by Anonymous

What would happen if an extra base was inserted during DNA replication? How would that affect the amino acid Sequence?

2007-11-26 06:36:10 · 1 answers · asked by Abby M 1

Which process is most critical for different types of tree cells to develop?

a mitosis
b DNA replication
c sexual reproduction
d cell differentiation


5. When the seed of a tree first starts to grow, what would happen if the cells did not differentiate?

a Other cells would differentiate.
b All of the cells would be identical.
c The DNA would make new cells.
d The seed could form roots, but not leaves.

2007-11-26 06:25:47 · 2 answers · asked by wish on a star 1

Which process is most critical for different types of tree cells to develop?

a mitosis
b DNA replication
c sexual reproduction
d cell differentiation


5. When the seed of a tree first starts to grow, what would happen if the cells did not differentiate?

a Other cells would differentiate.
b All of the cells would be identical.
c The DNA would make new cells.
d The seed could form roots, but not leaves.

. Which statement is true about cell differentiation?

a It happens in all cells.
b It causes cells to change and specialize.
c It produces identical cells.
d It happens during cell division.


2. Which order of events is correct?

a zygote → cell differentiation → mitosis
b mitosis → cell differentiation → stem cells
c stem cells → zygote → cell differentiation
d zygote → stem cells → cell differentiation

2007-11-26 06:19:43 · 3 answers · asked by wish on a star 1

2007-11-26 06:00:37 · 4 answers · asked by Anonymous

How can you coagulate milk proteins?

2007-11-26 03:54:55 · 5 answers · asked by Anonymous