Why are the Great Basin, Mohave and Sonoran Deserts considered distinct? |
- Why are the Great Basin, Mohave and Sonoran Deserts considered distinct?
- Excess Leptin, is that a thing?
- What are the long term consequences of plastic in the oceans?
- Do sounds sound different at higher altitudes?
- Why is the speed of sound significant with regard to aerodynamics?
- Do deciduous plants grow new leaves from the exact spots where the old leaves fell? Or only from new growth in the last year?
- What's the difference between acidosis and alcohol intoxication?
- Did the atomic bombs dropped on Hiroshima and Nagasaki have any effect on weather patterns? Either in the short term or long term? Close proximity or worldwide?
- How are oasis’ formed and survive?
- How accurate are the sounds of planets that NASA manages to record?
- Do overweight people have extra amount of nerves and pain receptors distributed around their body?
- Would it be possible to preserve a brain?
- How are sheer drop cliffs created?
- If you die from an allergic reaction do the resulting physical symptoms such as hives or swelling remain after death?
- Why are the colors of a rainbow always in the same order?
- How do flies maintain visual accuracy and a sense of surrounding at such high speeds of movement?
- How do scientists discover new species?
- Is there a limit on the "brightness" a typical fiber optic cable can carry?
- Are there any organisms that don’t need carbon dioxide or oxygen to survive?
- Do other kinds of waves “break” like waves of water in the ocean?
- How does the malfunction of a peptidase cause accumulation of lipid pigments in Neuronal Ceroid Lipofuscinosis?
- How does electric shock kill you?
| Why are the Great Basin, Mohave and Sonoran Deserts considered distinct? Posted: 31 Mar 2019 06:27 PM PDT Looking at a map, these three deserts look like they are right next to each other. Why wouldn't they be known as one big desert? [link] [comments]  |
| Excess Leptin, is that a thing? Posted: 31 Mar 2019 07:27 AM PDT Since Leptin deficiency is a thing, often leading towards obesity, where you're essentially always hungry, is there a situation, where, naturally, you'd have excess leptin? I know of the feedback loop where if you don't eat much, you get reduced leptin and always be hungry, and if you eat too much, you produce more leptin to signal that you're satiated. Would there be a situation where, like leptin-deficient people, you'd have natural excess leptin, and never really be hungry? Is there any correlation between this and anorexia? There is definitely a correlation between not enough leptin and eating too much, but is there one for the opposite? [link] [comments]  |
| What are the long term consequences of plastic in the oceans? Posted: 01 Apr 2019 06:23 AM PDT I know little to nothing. Big plastic is not what I am talking about but the micro plastics. I have read that the real bad plastic comes from clothes in the form of micro particles that are eaten by plankton. This started in the 50s or something, don't believe me on the date, and today there is not much we can do to reverse this. What are the effects of plastic in living things? to they go in and out? does plastic makes living things sick? If most plankton (hypothetically) is full with plastic and the whole ocean food chain gets plastic, will we too? and again, long term consequences. [link] [comments]  |
| Do sounds sound different at higher altitudes? Posted: 01 Apr 2019 06:04 AM PDT If you make a sound wave at a higher altitude where the density of air is a lot lower, does that for instance, change the pitch of the sound? (compared to at sea level) [link] [comments]  |
| Why is the speed of sound significant with regard to aerodynamics? Posted: 01 Apr 2019 04:41 AM PDT Why does the speed of a sound wave through air have any relationship or bearing on a completely different type of object moving through the same medium at the same speed? [link] [comments]  |
| Posted: 01 Apr 2019 07:09 AM PDT [Cross-posted from r/botany] I hope I can explain my question well enough to get an answer! From what I understand, leaves and new stems only grow from nodes on a stem. The type of plant determines whether one or more leaves will grow per node, and those leaves grow as soon as the node is created, along with an axillary bud. The axillary bud might 'wait' a long time but at any point it may start growing a new stem (not a single leaf). Am I right so far? So, how does all this relate to deciduous plants that lose their leaves? Once a particular node has lost its leaf/ves, will it grow new leaves from the same node in the following spring? Does the axillary bud become a leaf bud instead of a stem? If so, what happens when that leaf is dropped in the year after that - is another new bud produced? Or are new leaves only produced at new nodes? If that's the case, how does the tree produce enough new stem growth that one years' worth of new nodes can grow enough leaves to support the entire tree? At what point in the growth season do new nodes stop making new leaves and decide to 'wait' until the following spring? [link] [comments]  |
| What's the difference between acidosis and alcohol intoxication? Posted: 01 Apr 2019 07:21 AM PDT Both have very similar side effects so I'm wondering what is the difference and are they related in any sort of way. Need more of a chemistry answer rather than a biology one [link] [comments]  |
| Posted: 31 Mar 2019 09:23 PM PDT |
| How are oasis’ formed and survive? Posted: 31 Mar 2019 07:08 PM PDT Where does the water come from and how does it not just evaporate? [link] [comments]  |
| How accurate are the sounds of planets that NASA manages to record? Posted: 01 Apr 2019 05:03 AM PDT |
| Do overweight people have extra amount of nerves and pain receptors distributed around their body? Posted: 01 Apr 2019 07:26 AM PDT I always thought the amount of nerves and pain receptors is fixed regardless the size you are, and the bigger your are, the less nerves density you have, which should make you less sensitive and more resistance to pressure pain. However a study: "Body mass index and distribution of body fat can influence sensory detection and pain sensitivity" I ran into suggested the opposite. [link] [comments]  |
| Would it be possible to preserve a brain? Posted: 01 Apr 2019 01:23 AM PDT As the title already says; I wonder if it would be possible to preserve a brain by connecting it to an artificial heart (ofcourse with nutrients). I hope you guys can help me figure this one out. Thanks in advance. [link] [comments]  |
| How are sheer drop cliffs created? Posted: 31 Mar 2019 09:59 PM PDT I know that a lot of it deals with erosion and plates but what are the specific circumstances needed to form a sheer cliff? [link] [comments]  |
| Posted: 01 Apr 2019 06:17 AM PDT Let's say I was deathly allergic to something such as a bee sting. If I got stung and broke out in hives and my face swelled up and then I later died without the hives and swelling clearing up, would those hives and swelling remain? Or would do the reactions clear up after death? [link] [comments]  |
| Why are the colors of a rainbow always in the same order? Posted: 01 Apr 2019 05:02 AM PDT |
| How do flies maintain visual accuracy and a sense of surrounding at such high speeds of movement? Posted: 31 Mar 2019 10:37 PM PDT |
| How do scientists discover new species? Posted: 31 Mar 2019 10:34 PM PDT Do scientist go to the field and discover new species by luck or do they have a systematic/efficient way of searching? [link] [comments]  |
| Is there a limit on the "brightness" a typical fiber optic cable can carry? Posted: 31 Mar 2019 06:47 PM PDT I want to give an example of what I mean: Supposing you are living underground, but you can't just make a hole in the ceiling to get sunlight, can you use fiber optic cable to catch the sunlight on the surface and redirect it to your underground home ? And if yes, will you be able to tell the difference ? [link] [comments]  |
| Are there any organisms that don’t need carbon dioxide or oxygen to survive? Posted: 31 Mar 2019 05:36 PM PDT |
| Do other kinds of waves “break” like waves of water in the ocean? Posted: 31 Mar 2019 02:15 PM PDT Seeing a slo-mo of a wave breaking inspired this question. Waves of water can break, especially when they near the shore, and the water in the wave comes tumbling down over/in front of it. Is this process physically possible with any other waves in any other medium, or unique to the mass of water, speed and frequency of ocean waves, etc.? [link] [comments]  |
| Posted: 01 Apr 2019 01:58 AM PDT So first off a disclaimer: Yes, this overly specific question did arise because of an assignment, however the assignment itself is about a treatment and is not focused on understanding of the disease. I can complete the assignment without this knowledge, but my sources all agree on the cause and the symptoms while I can't wrap my head around how they are specifically related. I'm hoping to catch an expert here since my teacher is not an expert on this disease. I hope the mods will keep this up. Late Infantile Neuronal Ceroid Lipofuscinosis (LINCL) is caused by a mutation in the CLN2 gene, causing a defect in the enzyme tripeptylpeptidase1 (TPP1). This enzyme cleaves tripeptides from the N-terminus of the target protein with no known substrate specificity. The defect in this enzyme causes lysosomal accumulation of lipofuscins, lipid containing pigments. From the structures I found lipofuscins do not contain peptide bonds, so they shouldn't be cleaved by TPP1. Now my question: How are these two related? There seems to be a consensus on the cause and effect of the disease, but I don't get how a defect peptidase can cause an accumulation of lipids. [link] [comments]  |
| How does electric shock kill you? Posted: 31 Mar 2019 09:25 PM PDT How does electrocution kill a person? Does it literally cook your brain? Does it constrict your heart forcing it to stop? Do we even know exactly how it kills you? Also: not sure what flair to add to this. Medicine is the only thing I can think of that would relate to it. [link] [comments]  |
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