What Structural features with a common evolutionary origin?

What Structural features with a common evolutionary origin?
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Evolutionary relationships between groups of organisms are determined using which of Thefollowing type of information? A- Comparisons of nucleotide sequences B- .Comparisons of biochemical pathways C- Comparisons of structural features D- All of the above

Description : Evolutionary relationships between groups of organisms are determined using which of Thefollowing type of information? A- Comparisons of nucleotide sequences B- .Comparisons of biochemical pathways C- Comparisons of structural features D- All of the above

Last Answer : All of the above

What is an evolutionary tree? Is there a precise evolutionary tree known by science that explains the emergence and origin of every type of living being?

Description : What is an evolutionary tree? Is there a precise evolutionary tree known by science that explains the emergence and origin of every type of living being?

Last Answer : Evolutionary tree is the pictorial and schematic representation of evolutionary relations among species of living beings in which the trunk (or a preceding branch) represents common ascendants of ... in nucleotide sequences that may indicate more or less relatedness among species. Sponges Review

Phylogenetic system of classification is based on (a) morphological features (b) chemical constituents (c) floral characters (d) evolutionary relationships.

Description : Phylogenetic system of classification is based on (a) morphological features (b) chemical constituents (c) floral characters (d) evolutionary relationships.

Last Answer : d) evolutionary relationships.

The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challen

Description : The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challen

Last Answer : The process by which organisms with different evolutionary history evolve similar phenotypic ... Convergent evolution D. Non-random evolution

The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge, is called(a) non-random evolution (b) adaptive radiation (c) natural selection (d) convergent evolution.

Description : The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge, is called (a) non-random evolution (b) adaptive radiation (c) natural selection (d) convergent evolution.

Last Answer : (d) convergent evolution

Phylogenetic classification is one which is based on (a) overall similarities (b) utilitarian system (c) habits of plants (d) common evolutionary descent

Description : Phylogenetic classification is one which is based on (a) overall similarities (b) utilitarian system (c) habits of plants (d) common evolutionary descent

Last Answer : (d) common evolutionary descent.

What are the structural features of Ebola virus ?

Description : What are the structural features of Ebola virus ?

Last Answer : Phylogenetic tree comparing ebolaviruses and marburgviruses. Numbers indicate percent confidence of branches. The Ebola virus is a member of the Filovirus family. These are single-stranded RNA viruses. ... GP, transcription activator ( VP24), and RV24 transcription activator ( VP30). L)

What building method features a steel cage structural support?

Description : What building method features a steel cage structural support?

Last Answer : Need answer

What are the salient structural features of insulin?

Description : What are the salient structural features of insulin?

Last Answer : Insulin is a protein hormone with two poly peptide chains, the A chain with 21 amino acids and the B chain with 30 amino acids are joined together by a pair of disulfide bonds. It has a total of 51 amino acids.

What are the salient structural features of insu- lin?

Description : What are the salient structural features of insu- lin?

Last Answer : . It has two polypeptide chains. These chains are held together by disulfide bridges. Insulin has total 51 amino acids.

Study of drug-receptor interaction has now shown that: A. Maximal response occurs only when all receptors are occupied by the drug B. Drugs exert an ‘all or none’ action on a receptor C. Receptor and drugs acting on it have rigid complementary ‘lock and key’ structural features D. Properties of ‘affinity’ and ‘intrinsic activity’ are independently variable

Description : Study of drug-receptor interaction has now shown that: A. Maximal response occurs only when all receptors are occupied by the drug B. Drugs exert an all or none' action on a ... lock and key' structural features D. Properties of affinity' and intrinsic activity' are independently variable

Last Answer : D. Properties of ‘affinity’ and ‘intrinsic activity’ are independently variable

Drugs acting through receptors exhibit the following features except: A. Structural specificity B. High potency C. Competitive antagonism D. Dependence of action on lipophilicity

Description : Drugs acting through receptors exhibit the following features except: A. Structural specificity B. High potency C. Competitive antagonism D. Dependence of action on lipophilicity

Last Answer : D. Dependence of action on lipophilicity

Study of drug-receptor interaction has now shown that: A. Maximal response occurs only when all receptors are occupied by the drug B. Drugs exert an ‘all or none’ action on a receptor C. Receptor and drugs acting on it have rigid complementary ‘lock and key’ structural features D. Properties of ‘affinity’ and ‘intrinsic activity’ are independently variable

Description : Study of drug-receptor interaction has now shown that: A. Maximal response occurs only when all receptors are occupied by the drug B. Drugs exert an all or none' action on a ... lock and key' structural features D. Properties of affinity' and intrinsic activity' are independently variable

Last Answer : D. Properties of ‘affinity’ and ‘intrinsic activity’ are independently variable

Drugs acting through receptors exhibit the following features except: A. Structural specificity B. High potency C. Competitive antagonism D. Dependence of action on lipophilicity

Description : Drugs acting through receptors exhibit the following features except: A. Structural specificity B. High potency C. Competitive antagonism D. Dependence of action on lipophilicity

Last Answer : D. Dependence of action on lipophilicity

A common structural feature of vessel elements and sieve tube elements is (a) enucleate condition (b) thick secondary walls (c) pores on lateral walls (d) presence of P-protein

Description : A common structural feature of vessel elements and sieve tube elements is (a) enucleate condition (b) thick secondary walls (c) pores on lateral walls (d) presence of P-protein

Last Answer : (a) enucleate condition

A common structural feature of vessel elements and sieve tube elements is (a) enucleate condition (b) thick secondary walls (c) pores on lateral walls (d) presence of P-protein.

Description : A common structural feature of vessel elements and sieve tube elements is (a) enucleate condition (b) thick secondary walls (c) pores on lateral walls (d) presence of P-protein.

Last Answer : (a) enucleate condition

The common structural feature amongst the three categories of anticonvulsant drugs barbiturates, succinimides and hydantoins is (A) ureide (B) imidazolidinone (C) dihydropyrimidine (D) tetrahydropyrimidine

Description : The common structural feature amongst the three categories of anticonvulsant drugs barbiturates, succinimides and hydantoins is (A) ureide (B) imidazolidinone (C) dihydropyrimidine (D) tetrahydropyrimidine

Last Answer : (A) ureide

Is cuteness in young animals an evolutionary advantage?

Description : Is cuteness in young animals an evolutionary advantage?

Last Answer : No. Other animals eat young animals because they’re hungry. It’s a basic survival thing, not about being cute.

Does evolutionary biology apply to today's societies?

Description : Does evolutionary biology apply to today's societies?

Last Answer : “Survival of the fittest” is grossly misunderstood and misapplied by most people. Nor does it refer to individuals, but to species on the whole.

Does the evolutionary theory tell us anything about homosexuality?

Description : Does the evolutionary theory tell us anything about homosexuality?

Last Answer : No. Then again, it’s not like humans are the only species where homosexuality occurs.

What evolutionary function does annoyance serve?

Description : What evolutionary function does annoyance serve?

Last Answer : Self preservation.

Is there an evolutionary explanation for why we feel anger?

Description : Is there an evolutionary explanation for why we feel anger?

Last Answer : Increases testosterone, heightens senses and improves reaction time, and dulls physical pain. Few other things I can’t recall, but it’s a useful emotion that helped when we needed to fend for our lives.

Is Autism just the next step in the evolutionary process?

Description : Is Autism just the next step in the evolutionary process?

Last Answer : answer:Tony Attwood in his book A Complete Guide to Asperger Syndrome did quote a saying of an Aspie which had the same content as the title of your question. I think it's true in some ways. ... people I love to use the phrase ugly duckling . Their value can only be revealed until much later.

Is there an evolutionary or psychological purpose for the human sense of humor?

Description : Is there an evolutionary or psychological purpose for the human sense of humor?

Last Answer : answer:Laughing is healthy: Lower blood pressure Increase vascular blood flow and oxygenation of the blood Give a workout to the diaphragm and abdominal, respiratory, facial, leg, and back muscles Reduce certain ... creativity, and memory So there is a decided purpose to it, it makes us feel better.

Aside from the US, is there even a debate regarding evolutionary theory in the rest of the world?

Description : Aside from the US, is there even a debate regarding evolutionary theory in the rest of the world?

Last Answer : Not here, no.

From an evolutionary point of view, why did humans develop language?

Description : From an evolutionary point of view, why did humans develop language?

Last Answer : answer:Animals use language to a degree as well. They use it for protection, hunting and gathering, teaching their young, passing directions to others of their species, etc. Even creatures as small as ants ... we inhabit. And it wouldn't have taken us 4 billion years to get where we are today.

What's a good book for a non-scientist to read on human evolutionary differentiation?

Description : What's a good book for a non-scientist to read on human evolutionary differentiation?

Last Answer : Not a book but the doc that National Geographic, The Human Family Tree covers this in a way that is easy to understand by those without a science background.

What is the survival advantage of (and the evolutionary process that lead to) a species developing the ability to dream?

Description : What is the survival advantage of (and the evolutionary process that lead to) a species developing the ability to dream?

Last Answer : answer:That's an excellent question. Evolutionary biology isn't my field, but a guess would be giving the brain time to work on problems or sort out issues that the sensory clutter of the waking ... , but there, we really do need someone well steeped in brain function and chemistry to chime in.

What evolutionary advantage did the compulsion toward religion confer on humans?

Description : What evolutionary advantage did the compulsion toward religion confer on humans?

Last Answer : Have there really been 110 billion humans? I think I’ll need a source for that. Every biologist I’ve ever heard mention it says that more people are alive today than have ever been alive in the past. So, we’re talking 16 billions, max.

What would be the evolutionary advantage given to mockingbirds by mimicking other birds?

Description : What would be the evolutionary advantage given to mockingbirds by mimicking other birds?

Last Answer : Pure speculation here, but since one of the functions of bird song is to lay claim to a territory, maybe it’s the bird equivalent of posting “No Trespassing” signs in several languages. Could be that it deters competition not only from other mockers, but from other rivals for food resources.

For what evolutionary reason did human beings create the concept of "forgiveness"?

Description : For what evolutionary reason did human beings create the concept of "forgiveness"?

Last Answer : How do you know they created it. Maybe they discovered it and liked it.

Is there an evolutionary explanation for addiction?

Description : Is there an evolutionary explanation for addiction?

Last Answer : answer:What evolution accounts for is the brain's reward system. This is the feel-good mechanism that encourages us to do things that are beneficial to our survival, like eating, drinking ... a release. So evolution simply put the mechanism in place. The chemical addiction exploits that mechanism.

What is the evolutionary advantage of blue eyes?

Description : What is the evolutionary advantage of blue eyes?

Last Answer : It’s a byproduct of light skin, which is advantagous in dark climates for vitamin D absorption. It comes with the package.

Is there any evolutionary reason why women have a higher pitched voice than men?

Description : Is there any evolutionary reason why women have a higher pitched voice than men?

Last Answer : I’ve heard that infants react better to higher voices because they can hear them better. Apparently that’s how baby-talk started. Otherwise, I guess it’s just testosterone levels.

What's your opinion of evolutionary psychology?

Description : What's your opinion of evolutionary psychology?

Last Answer : It's extremely interesting to me; I've read some books on it. The thing I don't like is that it relies on logic and there isn't much of a good way to test it empirically. The ... that trait; why natural selection would have favored individuals with that trait and caused it to emerge as prevalent.

What evolutionary function is served by squinting one eye at lemons?

Description : What evolutionary function is served by squinting one eye at lemons?

Last Answer : We react to sour\bitter things like this because that is how our body would tell us that something was poisonus/not good to eat.

What is the evolutionary purpose of the menopausal "Hot flash"?

Description : What is the evolutionary purpose of the menopausal "Hot flash"?

Last Answer : As a woman going through that right now, let me just say that there is nothing attractive about hot flashes! I think women are still being punished for Eve eating that damned apple.

What evolutionary purpose does the difference in male and female voice pitch serve?

Description : What evolutionary purpose does the difference in male and female voice pitch serve?

Last Answer : Yep. For mating. Estrogen creates a higher, more youthful sounding voice in women. Testosterone produces a deeper voice in men. Essentially it helps us find a fertile mate.

Is there an evolutionary reason for aggressive sexual hazing in sports and military contexts?

Description : Is there an evolutionary reason for aggressive sexual hazing in sports and military contexts?

Last Answer : Humans are pack animals and brutal behaviour/rape is a means to establish and maintain the pecking order/hierarchy and some weakminded individuals lack the capacity to suppress/control their primal urges.

From a evolutionary standpoint, why aren't men attracted to women who are significantly taller then they are?

Description : From a evolutionary standpoint, why aren't men attracted to women who are significantly taller then they are?

Last Answer : Little is easier to control.

Where does privacy fit on the evolutionary timeline?

Description : Where does privacy fit on the evolutionary timeline?

Last Answer : It is innate within us just as our internal shame is.

Evolutionary speaking,what is the purpose of 'teat' for men?

Description : Evolutionary speaking,what is the purpose of 'teat' for men?

Last Answer : Because fetal development is essentially identical for both sexes until hormones begin to differentiate structures.

GMO seeds and weedkillers - Why did Monsanto engineers expect they could beat the power of evolutionary forces?

Description : GMO seeds and weedkillers - Why did Monsanto engineers expect they could beat the power of evolutionary forces?

Last Answer : We are so screwed if we think we can outwit Mother Nature and evolution. We aren’t the only life force on this planet determined to survive and meddling around with GM this and that invites the law of unintended consequences and we are seeing more and more examples of this every year.

What are the evolutionary benefits of being stoic?

Description : What are the evolutionary benefits of being stoic?

Last Answer : answer:Never let the bastards see you sweat. or Never complain; never explain. It’s a guy thing.

The evolutionary theory vs. religion...

Description : The evolutionary theory vs. religion...

Last Answer : “are men ape or angels” Neither.

From an evolutionary standpoint, why do armpits have hair?

Description : From an evolutionary standpoint, why do armpits have hair?

Last Answer : It is to wick up some of the moisture from your armpits.

Is there an evolutionary explanation for why we dream (When asleep)?

Description : Is there an evolutionary explanation for why we dream (When asleep)?

Last Answer : Perhaps it offers a glimpse into our subconscious, therefore allowing us to improve?

What is the evolutionary reasoning behind a mosquito's buzz?

Description : What is the evolutionary reasoning behind a mosquito's buzz?

Last Answer : Ok, I'm going to have to go do some research but I'm pretty sure that only the females buzz (and only the females bite). Maybe a method for finding mates? Some trivia: http:// ... /blog/2007/07/05/why-mosquitoes-buzz-in-peoples-ears/ http://www.sciencenewsforkids.org/articles/20040811/Feature1.asp

How many people here think evolutionary biology is sexist?

Description : How many people here think evolutionary biology is sexist?

Last Answer : I think there is a school of feminists has a tendency to react strongly against any categorical statement about women as a group. So if evolutionary biology tries to say women behave in x ... some reason I thought you asked about psychology rather than biology-which is a lot more contentious.

From a evolutionary stance why do we laugh and find things funny?

Description : From a evolutionary stance why do we laugh and find things funny?

Last Answer : It keeps us from crying.