Explain the dental formula of human beings. -Biology

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Description : Dental formula in human beings is

Last Answer : Dental formula in human beings is A. `(2,1,2,3)/(2,1,2,3)` B. `(2,1,2,3)/(2,1,2,2)` C. `(2,1,2,3)/(2,1,2,4)` D. `(2,1,3,2)/(2,1,3,2)`

Description : Dental formula of adolescent human being before 17 years `:-`

Last Answer : Dental formula of adolescent human being before 17 years `:-` A. `(2122)/(2122)` B. `(2123)/(2123)` C. `(2102)/(2102)` D. `(2023)/(1023)`

Description : Which one of the following correctly represents the normal adult human dental formula? (a) 3 3 1 1 3 2 1 1 , , , (b) 2 2 1 1 3 2 3 3 , , , (c) 2 2 1 1 2 2 3 3 , , , (d) 3 3 1 1 3 3 3 3

Last Answer : (c) 2 2 1 1 2 2 3 3

Description : Explain the mechanism of sex determination in humans. Or With the help of a flow chart explain in brief how the sex of a newborn is genetically determined in human beings. Which of the two parents, the mother or the father, is responsible for determination of sex of a child? -Biology

Last Answer : Mechanism of Sex Determination in Human Beings: In human beings, the sex of the individual is genetically determined.Sex determination is the process by which sex of a new born individual can be ... happens at fertilisation. Thus, father is responsible for the determination of the sex of a child.

Description : What is a Dental formula of man? -Do You Know?

Last Answer : answer:

Description : What is the dental formula of crocodile?

Last Answer : I2 c3 pr m1

Description : Common origin of man and chimpanzee is best shown by (a) binocular vision (b) chromosome number (c) dental formula (d) cranial capacity.

Last Answer : (b) chromosome number

Description : In human beings, the statistical probability of getting either a male or female child is 50 : 50. Give a suitable explanation. -Biology

Last Answer : If a Y bearing sperm fertilizes the egg, the zygote will be a male (XY) and when X bearing sperm fertilizes the egg, the resulting zygote will be female (XX). Since the ratio of the X chromosome ... in a male gamete is 50:50. The statistical probability of male or female infants is also 50:50.

Description : Describe double circulation in human beings. Why is it necessary? -Biology

Last Answer : The double circulatory system of blood flow refers to the separate systems of pulmonary circulation and the systemic circulation. The adult human heart consists of two separated pumps, the right side with the ... system is that blood can be pumped to the rest of the body at a higher pressure.

Description : Describe double circulation in human beings. Why is it necessary ? -Biology

Last Answer : In our heart blood enters twice and also pumped out twice from the heart. The deoxygenated blood from the body is brought to the right atrium through vena cava from where it is sent to right ... body. This is useful in case of humans who constantly need energy to maintain their body temperature.

Description : The kidneys in human beings are a part of the system for (i) nutrition (ii) respiration (iii) excretion (iv) transportation -Biology

Last Answer : Answer. The kidneys in human beings are a part of the system for excretion and it process of the metabolic waste which can eliminated from an organism. In this vertebrates this become primarily carried out ... and other part of the skin. it is more important process in major form of the life.

Description : What are the components of the transport system in human beings ? What are the functions of these components ? -Biology

Last Answer : The transport system (circulatory system) in human beings mainly consists of heart, blood and blood vessels. (i) Function of heart : The heart receives deoxygenated blood from the body parts and ... the blood vessels (arteries, veins and capillaries) and also comes back to the heart through them.

Description : How are the lungs designed in human beings to maximise the area for exchange of gases ? -Biology

Last Answer : Within the lungs, the air passage divides into smaller and smaller tubes, called bronchi which in turn form bronchioles. The bronchioles terminate in balloon-like structures, called alveoli. The ... vary thin walls and contain an extensive network of blood vessels to facilitate exchange of gases.

Description : How is oxygen and carbon dioxide transported in human beings ? -Biology

Last Answer : (i) Transport of oxygen : Haemoglobin present in the blood takes up the oxygen from the air in the lungs. It carries the oxygen to tissues which are deficient in oxygen before releasing it. (ii) ... the dissolved form in our blood plasma to lungs. Here it diffuses from blood to air in the lungs.

Description : (a) Draw a schematic representation of transport and exchange of oxygen and carbon dioxide during transportation of blood in human beings and label on it: Lung capillaries, Pulmonary artery to ... the advantage of separate channels in mammals and birds for oxygenated and deoxygenated blood? -Biology

Last Answer : (a) A schematic representation of transportation and exchange of oxygen and carbon dioxide during transportation of blood in human beings (b) It is necessary to separate oxygenated and deoxygenated ... . The separation of oxygenated and deoxygenated blood provides high oxygen supply to the organs.

Description : (a) Draw a diagram of excretory system in human beings and label the following parts. Aorta, kidney, urinary bladder and urethra.(b) How is urine produced and eliminated ? -Biology

Last Answer : Answer.(a) (b) Blood from the heart comes into the kidneys afferent and efferent arteriols from the renal arteries where it enters about 2-3 million nephrons per kidney. Then, it goes through the ... goes through ureters to bladder and then to urethra where it is excreted out of body as urine.

Description : The human beings who look so different from each other in terms of colour, size and looks are said to belong to the same species. Why? Justify your answer. -Biology

Last Answer : Human beings are said to belong to the same species because of the following reasons:DNA studies.Number of chromosome is same,All have a common ancestor.They interbreed among themselves to produce fertile young ones of their own kind.

Description : List some animals that are found parasitic on human beings. -Biology

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Description : How is sex determined in human beings? -Biology

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Description : List the endocrine glands present in human beings. -Biology

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Description : List the endocrine glands present in human beings. -Biology

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Description : Explain the importance of biodiversity for human beings. -SST 10th

Last Answer : (i) We humans along with all living organisms form a complex web of ecological system in which we are only a part and very much dependent on this system for our own existence. For example, the ... contribution : (i) Minimising wastage of resources. (ii) Use Jute bags. (iii) Planting more trees.

Description : Explain the importance of biodiversity for human beings -SST 10th

Last Answer : Biodiversity is very important for us because we are fully dependent on it. For example, the plants, animals and micro-organisms recreate the quality of the air we breathe, the water we drink ... the ecological system as these are also the primary producers on which all other living beings depend.

Description : Machines can’t replace human beings.’ Explain this in 80-100 words with reference to the Lesson ‘The Fun They Had’. -English 9th

Last Answer : In context of the lesson ‘The Fun They Had’ do you think mechanical teachers or computer instructors cannot replace humans as teachers. A teacher not only has to teach and explain things but ... then only will they be able to pass on the correct values and lessons to the students.

Description : Adulting Question. When did you start to realize your parents are just human beings trying their best to raise another?

Last Answer : Serious answer - when I got my own apt and realized how much furniture/cable was.

Description : Which books study the personality of human beings and include the following key words?

Last Answer : Ok, I have so many things to say that I don't even know where to start. I'm not familiar which those personality class system stuff, but from what I managed to find with Google, all of these ... take any of that seriously. Research as you will, but be aware that you are in a controversial territory.

Description : Banal question: Is there a scientific theory in which the evolution of human beings and another kind of organism that have a common source means the same thing as when an organism evolves from humans?

Last Answer : As far as I know human beings and all other organisms do share a common source and evolution is a continuing process for all organisms, including man. That’s what the theory of evolution explains.

Description : What do you think is the emotion that joins up all human beings on Earth? (I'm not going to talk about animals)

Last Answer : Not love. Fear. That’s what motivates people.

Description : Can any species take over human beings intellectually?

Last Answer : the species will be machines. and the takeover is probably right around the corner.!

Description : Who are or were some good-looking people, who are or were ugly human beings?

Last Answer : Josef Stalin comes to mind.

Description : Do you think value for human beings really does still exist?

Last Answer : The people I've fallen in love with have never been the most physically attractive, and in the cases where I'm really taken, I actually don't really perceive their physical aspects accurately. It's ... I were only looking at the physical, would probably have been disqualifying if I didn't know them.

Description : In what context is it okay to assault other human beings, en masse?

Last Answer : Only cool in video games and fiction.

Description : How is the pollution in oceans affecting us as human beings?

Last Answer : Yes, we get a lot from fish. But pollution in the oceans isn't the only threat. Pharmaceutical chemicals, as well as others, end up in ALL water supplies, no matter where they are. They include birth ... will be no edible fish left in the oceans within 50 years (according to a recent report I read.)

Description : Do you think human beings will ever need to relocate to another planet in the future?

Last Answer : Well, I’m sure if we get advanced enough technology we’ll try, whether we “need” to or not.

Description : What benefit do human beings bring to the Earth?

Last Answer : Protection against asteroid/comet collisions In the future. Also we put out wild fires.

Description : Why do human beings retire when all it does is make them turn into miserable, unhappy people ?

Last Answer : answer:In many Western societies, people don't have any choice but to retire or at least partially retire at a certain age. Since we now remain healthy for much longer, this can leave people with many ... before we reach that point and as a society, we need to start to factor into our planning.

Description : Do you consider it sexist to use the word "man" or "mankind" in reference to human beings?

Last Answer : Of course not.

Description : Is it essential for all human beings to have some sort of concept for "the meaning of life"?

Last Answer : answer:Essential? Essential carries an implication that one would die without it. In a relatively benign existence, where the basic essentials of needs (physiological, and most needs regarding safety), ... the face of unrelenting horror and catastrophe. But it is not essential for a quotidian life.

Description : If there's a huge disaster to all human beings right now, which choice below would you see yourself taking?

Last Answer : F start looting.~ most likely E.

Description : When human beings come to their senses and stop causing climate change, what unchanging climate will we have and hopefully enjoy?

Last Answer : It would have to be at a tipping point before everyone joins in.

Description : Are human beings like artwork?

Last Answer : I have met people who I would consider to be a piece of work but I have never met anyone who I would consider to be a work of art. if you are looking for a special someone for romance ... meaningful long term relationship.be yourself, don't try to be what you think someone else wants you to be.

Description : Should we change the scientific name for human beings?

Last Answer : answer:This should be in social. No, otherwise we’ll have to re-name homogenized milk. And homo milk has always been okay, even in Catholic school. Catering to ignorant people is called the dumbing down of society. And that language school teacher has grounds for an inappropriate firing suit.

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.

Description : What's the best thing we as human beings can do to help the earth?

Last Answer : Leave?

Description : Are human beings faithless by nature?

Last Answer : I have of late felt that each man is unto himself. I am trying to find meaning in this, is it because life has changed so much that we have to be? Or am I making the past a much better place in my mind . ... worthy as if I close it,it is a bit like a living death I feel. A death of a part of me.

Description : In a world where it's all water with zero land mass, could human beings still create civilizations?

Last Answer : I’m pretty sure they’d be adaptive to water. Evolution is inevitable for a species survival.

Description : When are human beings at their cutest?

Last Answer : 18 months. My favorite age.

Description : Every person born is a human being, but is it better that some human beings were never born and if they realise this is it their fault?

Last Answer : That’s the most ridiculous thing I’ve ever heard. People are transformed by their environment for the most part, unless we’re talking about a huge defect in the embryology process.

Description : Would it be wrong to blame God for problems caused by us and by other human beings?

Last Answer : Yes. It would be wrong. God left us to our own devices. We (collectively as humans) decided to use those devices to hurt each other and our environment.

Description : What is known about the behavioral fear of human beings in animal populations?

Last Answer : You are right about large predators.