Biology - February 2007

2007-02-25 05:41:51 · 6 answers · asked by mrsbreeding_05 1

(A) Sympatric speciation
(B) A population in Hardy-Weinberg equilibrium
(C) Artificial selection
(D) Descent with modification
(E) Adaptive radiation

2007-02-25 05:35:23 · 5 answers · asked by JustMe 2

continuation of the species

decreases the genetic variation of fungus

attraction of animals who eat fungus

none of the above

2007-02-25 05:02:46 · 1 answers · asked by Kelly N 1

if you could help me answer these, thatd be great! i cant find them in the book anywhere!! just put the number of the question next to your answer : ] thankyou soooo much! please help me! this is due tomorrrow!


19. compare the different types of adaptations in the digestive systems of three different types of organisms by describing how each obtains and breaks down food. (earthworm, grasshopper, and bird)

21.compare and contrast mechanical and chemical digestion.

22.what are the functions of the digestive enzymes amylase and pepsin? what roles do hydrochloric acid and bile play in digestion?

23. Describe the structure of villi and explain how their function is related to their structure.

24.How does the digestive system help maintain homeostasis?

27.Explain how uric acid is disposed of in birds.

29.What role do the skin, lungs, and liver play in the excretory process?

31.Describe the difference between the three types of muscles in your body.

2007-02-25 05:02:09 · 2 answers · asked by Anonymous

2007-02-25 04:18:17 · 11 answers · asked by Anonymous

2007-02-25 04:09:38 · 5 answers · asked by steven o 1

Which of the following traits do archaea and bacteria share?

1. composition of the cell wall
2. presence of plasma membrane
3. lack of a nuclear envelope
4. identical rRNA sequences


a. 1 only
b. 3 only
c. 1 and 3
d. 2 and 3
e. 2 and 4

I know that 3. lack of a nuclear envelope has to be one of the answers

2007-02-25 03:38:46 · 2 answers · asked by Anonymous

how does fusion differ from the process of budding in the context of an enveloped virus?

2007-02-25 03:13:53 · 1 answers · asked by buki_girl 1

I have been told I need to prepare an overnight culture of bacteria in order to be able to dilute it down to 10-5, can someone explain what I need to do and how it works?

2007-02-25 03:01:55 · 2 answers · asked by Batgirl182 2

2007-02-25 02:58:40 · 2 answers · asked by Anonymous

2007-02-25 02:49:22 · 2 answers · asked by ader 2

my science teacher gave us an assignment and we're supposed to create a "science fictional story about the microbial world, using 4 main characters: Bacteria, Archaea, Viruses, and Protists..." i was okay with that part until i saw the grading rubric. to get a good grade, i have to make my story accurate in the portrayal of microbial life, while being HUMOROUS!!! is that possible? it might be just me, but i don't find binary fission that amusing. any suggestions for a basic plot?

2007-02-25 02:43:52 · 3 answers · asked by random_person 2

I mean, there's more evidence against it than for it! Teachers teach it as if it were a scientific law, and call it "the Theory of Evolution" but in reality it's neither! It never left the stages of being an unconfirmed hypotheses!

2007-02-25 02:38:06 · 12 answers · asked by Ory O Oreo 3

2007-02-25 02:00:17 · 4 answers · asked by Anonymous

float in water or sink...? I'm 90% sure I know the answer I just want confirmation...

2007-02-25 01:47:06 · 24 answers · asked by Belle 3

For my biology coursework I have to write a section on how I will make my experiement a fair test. The experiemnt is looking at the results of using different sugars in yeast fermentation. (maltose, lactose, fructose, glucose and sucrose). What do I need to keep the same, and why? I need this too sound SMART!

thanks!

2007-02-25 01:04:36 · 2 answers · asked by Anonymous

2007-02-25 00:38:01 · 6 answers · asked by Anonymous

should we try to find the answer for this.
1.what is the category to which the life,death belongs to philosophy,biology.i think it is a biological question.
2.what is the biological answer for the life and death
3.what is the philosophical answer for the life and death
4.if it is a biological question what is the philosophical answer?
5.if it is a philosophical question what is the biological answer?
love u all

2007-02-25 00:08:36 · 16 answers · asked by ramappa j 2

and what should the person with high iron NOT eat. ? just how do you lower the iron? besides donatating blood. ?

2007-02-25 00:07:04 · 2 answers · asked by flowerlegz 3

Sorry to ask this.. but its a question that alot of my friends ask!!! Why when you have a number 2, does it somethiomes contain what looks like sweetcorn even tho you havent eaten any? al suggestions welcome

2007-02-24 23:41:39 · 2 answers · asked by Ciara L 2

or if you know any websites which helps explain it

2007-02-24 23:32:38 · 9 answers · asked by Anonymous

???

2007-02-24 23:23:04 · 10 answers · asked by maraesa1000 5

2007-02-24 23:06:33 · 9 answers · asked by Anonymous

2007-02-24 22:29:09 · 5 answers · asked by Anirban Kumar 1

Mainly relating to bifidobacteria count.

2007-02-24 22:03:08 · 1 answers · asked by Anonymous

2007-02-24 21:54:19 · 5 answers · asked by lilangelsarah23 1

2007-02-24 21:38:12 · 4 answers · asked by Anonymous

Can we preserve the brain of a person and keep it alive by supplying blood from an artificial pumping device?

if the eyes are connected to the living brain, then can we observe the eye movements?

2007-02-24 20:34:17 · 6 answers · asked by vaidehi 2

2007-02-24 20:29:18 · 2 answers · asked by tempo_tranquillo 2

2007-02-24 19:57:07 · 3 answers · asked by Anonymous