Biology - December 2006

2006-12-15 14:43:45 · 15 answers · asked by Emma T 2

2006-12-15 14:08:35 · 4 answers · asked by Anonymous

2006-12-15 14:00:06 · 9 answers · asked by Anonymous

If you are looking at sections of the same plant cells, how can you see a large vacuole in one and almost none in the other. Or an extensive endoplasmic reticulum in one and not in the other? How can you explain this if its the same cells?

2006-12-15 13:17:33 · 2 answers · asked by Anonymous

many whites are interbreeding with colored people,having less babies or no babies at all. is loosing the white race such a great loss for the world.

2006-12-15 12:22:36 · 14 answers · asked by Nelson C 1

The er, golgi apparatus, mitochondria, dna

2006-12-15 12:18:41 · 8 answers · asked by Anonymous

2006-12-15 11:18:57 · 19 answers · asked by BioRisque 1

are they classified by their cell wall, their nucleus, their rRNA sequencing, or their DNA?

2006-12-15 11:17:39 · 7 answers · asked by James K 1

2.Nitrogen fixation converts gaseous nitrogen into ammonia and ammonium compounds. Which of the following is true?

a.The air in the atmosphere is about 20% nitrogen gas.

b.About half of all living things require nitrogen for survival.

c.Plants and animals can not process the nitrogen from the nitrogen gas in the air.

d.none of the above

3. In any food chain the total amount of energy always ____________.

increases

decreases

stays the same

decreases then increases

4. Ninety-six percent of all living things are made up of the following elements:

Carbon, Oxygen, Nitrogen and Hydrogen

Oxygen, Hydrogen, Water and Carbon

Nitrogen, Sodium, Oxygen and Hydrogen

Hydrogen, Oxygen, Potassium, and Water

5. Which of the following is NOT part of a DNA molecule?

nitrogen base

phosphate

potassium

sugar

6. A picture representation for predicting what offspring will look like is a(n) ______________.

genotype

Punnett Square

allele

gene

2006-12-15 11:09:28 · 6 answers · asked by J-Diddy 1

Really haven't heard of them on Access Hollywood or that one other Hollywood show that plays before or after of the Access Access show. Have they been staying low profile from the papparazzi's or what?

2006-12-15 10:29:33 · 6 answers · asked by Bobcat9 2

2006-12-15 10:03:03 · 13 answers · asked by Rich 1

a. an abnornal combination of chromosomes
b. the presence of two extra chromosomes
c. a faulty chromosome from the mother
d. an absence of the second sex chromosome

2006-12-15 09:56:51 · 13 answers · asked by georgia_gurl345 2

2006-12-15 08:41:10 · 16 answers · asked by Anonymous

I know .......it sounds naive :)

2006-12-15 08:34:00 · 6 answers · asked by Anonymous

2006-12-15 08:28:26 · 22 answers · asked by Anonymous

one week extra

2006-12-15 08:13:43 · 5 answers · asked by Anonymous

2006-12-15 08:00:26 · 2 answers · asked by Anonymous

opthalmology means a study of eye science

2006-12-15 07:39:04 · 17 answers · asked by mahesh a 1

a) Gametic
b)Mechanical
c)Habitat
d)temporal
e) behavioral

2006-12-15 07:22:33 · 3 answers · asked by Cynthia S 1

Anyone here or a signifigant other of someone here have a balanced translocation and have children?? AKA a chomosome rearrangement. If so, please share your story with me. My husband and I are planning to start a family but are concerned because he has a balanced translocation (he himself is perfectly fine and normal except for the fact that he carries the gene for it.) and we know there can be difficulties due to it. We could use any help or advise from someone who has experiance with this, we dont know where to start. Thanks in advance!!

2006-12-15 07:06:31 · 2 answers · asked by emg2528 2

2006-12-15 07:05:37 · 2 answers · asked by Tom K 1

a. a state of sustained partial contraction
b. the feeling of well being following exercise
c. the ability of a muscle to efficiently cause skeletal movements
d. the condition of athletes after intensive training

2006-12-15 07:02:18 · 2 answers · asked by Tom K 1

a, the body need for oxygen increases to remove lactic acid from teh muscle cells
b. the muscle actively produces atp
c. muscle fibers remain contracted
d. oxygen is consumed
e. heat is generated

2006-12-15 06:57:47 · 2 answers · asked by Jennifer E 1

41.Compare and contrast mitosis and meiosis.
42. Explain the importance of biodiversity.
43. What is the difference between sexual and asexual reproduction?
44. How can the process of natural selection change a population?
45. Compare and contrast primary and secondary succession?
46. How do cells become cancerous?
47. List some ways to help protect our environment.
48. What is a mutation?
49. Compare and contrast animal and plant cells.

2006-12-15 06:57:34 · 6 answers · asked by Anonymous

a. acetylcholine opens gates to receptors on the motor end plate
b. acetylcholinesterase binds to receptors on the motor end plate
c. calcium ions bind to receptors on the motor end plate
d. a motor neuron directly stimulates the motor end plate

2006-12-15 06:54:16 · 4 answers · asked by Jennifer E 1

a. sarcolemma
b. sarcomere
c. myofibrils
d. transverse tubules

2006-12-15 06:52:34 · 4 answers · asked by Jennifer E 1

a. increase the action potential transmitted along the sarcolemma
b. release the inhibition on z lines
c. remove the blocking action of tropomysoin
d. causes atp binding to actin
e. none of these

2006-12-15 06:50:05 · 1 answers · asked by Jennifer E 1

2006-12-15 06:47:55 · 8 answers · asked by princess_bossy_jrhigh 1

a. more permeable to sodium ions
b. less permeable to sodium ions
c. more permeable to potassium ions
d. less permeable to potassium ions

2006-12-15 06:46:13 · 4 answers · asked by soupbone0106 1

2006-12-15 06:05:56 · 14 answers · asked by jonas e 1