Biology - January 2007

What is the largest division of geologic time?

2007-01-17 04:55:22 · 1 answers · asked by Rattiesrule 2

can u plz,, enlighten me, hows wasp's reproduction?

2007-01-17 04:52:24 · 2 answers · asked by Rakesh K 1

And how do I prepare beef extract? (To use it in a culture(culturing) of bacteria)

2007-01-17 04:48:55 · 1 answers · asked by Javier S. 2

The most prominent theory about chemical evolution suggests that the first cells arose from simple sacs of biological molecules called what?

A. Protobionts
B. Plasma membranes
C. Nucleic acids
D. Prokaryotes
E. Purines

2007-01-17 04:43:43 · 2 answers · asked by Rattiesrule 2

A rock sample containing radioactivity was found to have only 1/8 of the amount of the original substance that it did when it was formed. How many half-lives have elapsed since the rock was formed?

A. 2
B. 1
C. 0
D. 3
E. 8

2007-01-17 04:34:34 · 5 answers · asked by Rattiesrule 2

ever tried keeping the umbilicus open instead of letting it dry up and seal off, so that we could have the option of not choking on our food by keeping three separate orifices; one for food, one for air and one for talking...?

2007-01-17 03:16:08 · 2 answers · asked by cdf-rom 7

In 2004, scientists perferct parthenogenesis in mice. In 2006, it was goats. If human parthenogenesis (fertilization without male semen) becomes possible, does that spell the end for men? Should we all start packing our bags for Mars right now?

2007-01-17 03:07:43 · 10 answers · asked by Anonymous

Which techniques are used to determine the age of fossils?

A. Radioisotope dating
B. Electron microscopy
C. Particle acceleration
D. Relative dating by comparison to index fossils
E. Paleontology

2007-01-17 03:00:18 · 11 answers · asked by Rattiesrule 2

2007-01-17 02:58:28 · 7 answers · asked by Anonymous

In June 2004, a group of Japanese scientists reported that they developed a bovine (cow) embryo that was resistant to mad cow disease.

how do you think they created this embryo?

2007-01-17 02:57:45 · 2 answers · asked by jessica_stay 1

i invented the basics of sexual reproduction,getting around from
place to place,and how to use energy from the sun.who am i?
a.bacterium
b.multicellular organism
c.chain of dna
d.cooperating cell community

2007-01-17 02:47:56 · 5 answers · asked by tami t 1

2007-01-17 02:46:37 · 9 answers · asked by missy p 1

The physical remains of a once-living organism is called a(n) _____.

A. Paleontologist
B. Imprint
C. Fossil
D. Sediment
E. Remnant

2007-01-17 02:39:33 · 8 answers · asked by Rattiesrule 2

Any better way of defining it? More encompasing.

2007-01-17 02:38:32 · 4 answers · asked by Put_ya_mitts_up 4

2007-01-17 02:36:18 · 5 answers · asked by Anonymous

2007-01-17 02:29:39 · 11 answers · asked by ellow! 2

Kites
Buzzards
Eagles
Hawks

* any type of the birds please, thx! *

2007-01-17 02:10:46 · 2 answers · asked by Blondie_13 2

2007-01-17 01:36:44 · 5 answers · asked by Veronica 1

2007-01-17 01:29:13 · 5 answers · asked by nature 1

2007-01-17 01:21:16 · 5 answers · asked by Zman 1

2007-01-17 01:19:59 · 1 answers · asked by Zman 1

1) We streak plates and sometimes grow them in liquid broth but how do they really give us pure culture?

2) What can we do with pure cultures?

3) What are the significances of microbial organisation as a community?

4) How do bacteria communicate with each other. Basically explaining to me about the Quorem sensing.

Please only answer if you know because I am studying for a test not to hand up a piece of homework.

2007-01-17 01:18:26 · 2 answers · asked by PIPI B 4

actually, i really want to know what is runners means in the natural vegetative reproduction,,,,,i really need the answer........pls pls help me and oh it is not a science mathematics only biology

2007-01-17 00:52:01 · 2 answers · asked by vmk 1

can the actual traits of an offspring be determined by knowing the traits of the parents?

2007-01-17 00:34:04 · 5 answers · asked by Crisham 1

2007-01-17 00:22:29 · 4 answers · asked by fla-x 1

2007-01-17 00:12:23 · 6 answers · asked by HEMANT F 1

Gregor Mendel used only true-breeding plants. If he had used plants that were not true breeding, do you think he would have discovered dominant and recessive traits? why or why not?

How do I use the following terms to create a concept map?
meiosis, eggs, cell division, X chromosomes, sex cells, sperm, mitosis, Y chromosome
It has something to do with like putting a word in a bubble and then like drawing lines from it to another word but I'm not sure.

If each of the offsprings, TT, TT, Tt, and Tt, were allowed to self-fertilize, what are the next possible genotypes in the next generation?

For the question above this, what is the probability of each genotype?

2007-01-17 00:09:47 · 1 answers · asked by Sarah S 3

The left brain controls the right parts of the body while the right brain controls left part of the body. Why is this so?

2007-01-16 23:55:56 · 2 answers · asked by Great_Magician13 2

2007-01-16 23:34:31 · 4 answers · asked by icon 1

cells. many thanks

2007-01-16 23:06:14 · 3 answers · asked by Anonymous