Posted on 25 August 2011. Tags: 100 degrees celsius, amoeba, Answer, bacterial population, Choose, diversity, example of primary succession, interspecific competition, microscopic plant, Plant, plant population, plant populations, single celled organism, single celled organisms, species diversity
PLEASE EXPLAIN WHY YOU CHOOSE THE ANSWER FOR EACH QUESTION
3. . It was recently discovered that an amoeba (a single celled organism) falls asleep (goes “dormant”) when exposed to valium. Humans also fall asleep when exposed to valium. The amoeba releases a chemical resembling valium that is almost identical to a chemical released by the human brain.
This example best illustrates which theme in biology?
a. Unity within diversity
b. Structure and function
4. Pyrodictium are single-celled organisms, lacking a nucleus. They live near deep-sea active volcanic openings preferring acidic conditions and temperatures above 100 degrees Celsius (i.e., a temperature above boiling if at sea level) and die at temperatures below 82ºC. Their genetic material was unlike any other single-celled organism known to humans before 1980.
In what domain is Pyrodictium?
a. Bacteria
b. Archaea c. Eukarya
d. Prokarya
17. All organisms require certain nutrients for survival and reproduction. Suppose a particular bacterial population thrives only in the top five millimeters of lakes. Suppose a microscopic plant population also thrives only in the top five millimeters of lakes. When the bacterial and plant populations are floating together, the bacterial population is reduced to 20% of the number it was when floating in the absence of plants. What does this situation likely illustrate?
a. Species diversity of a community
b. Niches of two species are separate and distinct.
c. One population serving as a resource for another population.
d. Interspecific competition.
19. What would be an example of primary succession?
a. Events following a melting glacier, exposing bare rocky terrain.
b. The colonization of an empty region by long-lived plant species.
c. Community replacement on lands abandoned by a farmer.
d. A forest community that is relatively stable over time.
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Posted on 22 August 2011. Tags: Answer, cca, concentrates, crush, Curricular, curricular activity, Facebook, fun, guy, passion, pretty girls, Sessions, shy guy, signs
I’m in this cca (co curricular activity) with a lot of guys. There’s this guy I have a crush on, Now I have been reading up a lot of whether a guy’s interested in me, but he’s a shy guy. He is also very involved in the cca and has a lot of passion for the cca. Therefore whenever he participates in it, he will be oblivious to me throughout the training sessions. He makes fun of me sometimes on facebook and he seems really disinterested in girls till I realized he knows a lot of pretty girls. He’s usually loud with his friends in the cca but when we are both participating in the same part, he becomes quiet with me. I don’t know if it is because he is shy. He rarely or never talks to me in the cca because girls are rare in the cca. He is also “affiliated” with another girl in the cca and there was a lot of teasing about him liking that girl. I take sneaky long glances at him when he is doing things and once, he caught me and I glanced away quickly though I don’t know whether he noticed. He behaves indifferently to me and concentrates on the cca during the cca activity but he is very friendly and active on facebook. He acts as if I don’t exist in the room but at the same time aware of me.. I don’t know how he feels. Though all the signs are pointing towards him not liking me back too. I need help?
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Posted on 12 August 2011. Tags: Answer, apes, demography, different races, ecological niche, Fossil, fossil evidence, gene pool, Image, migration, natural occurance, proof of evolution, simplistic definition, speciman
In order for a speciman to fossilize conditions must be seemingly perfect to allow this process to occur. You say we were created in gods image so we can’t be the descendants of apes yet the fossils we HAVE found suggest nothing to the contrary yt this evidence is completely dismissed. Also for those of you whose argument is solely then why are there still apes around then or why hasn’t every animal evolved to be as “smart” as we I have both answers. To the first speciation. Other animals will sometimes split off from another species and form their own this can be due to change in demography gene pool and natural occurance such as an earthquake that separates the group allowing them to continue to evolve separately. This Is supported by all the different races of humaniy, although we have become differnt species we did evolve to fit our differenb environments also neandrathal man provide an example of when two groups of which evolved from a common answer split and became to separate species probably in the first migration out of Africa. As the first group left they evolved in neandrathol while this who remained in Africa stay and became modern humans. During the second migration we competed heavily with the neandrthals and eventually drove them to extinction. This is also an explanatisecondly second answer, ecological niche, a simplistic definition meaning that two animal that share an exact niche cannot compete for the resource and one will eventually become extinct. In addition to neandrthals This can be evidenced by countless other cases of extinction. Being blunt, I would be stupid for a species to evolve as we did bc we would outcompete them for resources and they would eventually go extinct. Also a common mistake is to believe evolution happens over night when in fact it occurs over thousands of generations only eventually leading to an observable outcome. This is why we research evolution in species with short generation spans such as bacteria
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Posted on 07 August 2011. Tags: Answer, Example, forest, Kelp, kelp forest, niche
What is an example of a specific niche in a kelp forest?
What is an example of a general niche in a kelp forest?
The answer to these two questions would really help, thanks 🙂
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Posted on 02 August 2011. Tags: Answer, board exams, cisce, CISCE-affiliated, Exams, month of the year, previous years, question papers, star, Start
In what month of the year do they star preparing for the Board exams?
How many hours do they usually study?
How many times do they practice the previous years’ question papers?
From which month, do they start practicing the previous years’ question papers? How many hours a day do they practice those?
Answer if you are/were from a CISCE-affiliated(ICSE) school.
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Posted on 16 July 2011. Tags: Adaptation, Answer, energy from the sun, evolution, Levels, New, Niches, organisms, predators
A:the ability to defend from predators
B;the ability to reproduce
C:the ability to obtain energy from the sun
D:No answer is correct.
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