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37 views

Ant or termite?

I've seen quite a few of these bugs on my kitchen counter and bathroom counter in past weeks. A few weeks ago, I left Ortho Ant B Gon Max gel droplets under the top of the counter in the kitchen, ...
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0answers
48 views

Why heart is on the left side?

I am not a biologist but I wonder if there is any benefit for the human to have hearts on the left side? do animals have their hearts on the left too? or on the right?
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1answer
41 views

Why is the ability of a virus to get crystallized considered as a “Non living feature of a virus”?

My book states that the fact that :"Viruses can be crystallized" is a proof of their "Non living character" Does that mean living things cannot be crystallized? If yes, why is that so?
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16 views

Can anything useful be done with stable isotope data for a single species

This is my first biology question. So I have some stable isotope data on a single species. This data looks similar to the demo data in the siar package for r which looks like this: ...
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0answers
24 views

What does the final (Illumina) RNA-seq library contain? ss cdNA or ds cDNA?

I guess the oligos on Illumina's flow cell only hybridize to to single-stranded cDNAs (sscDNA). However, when I read the TruSeq protocol (googled: TruSeq® RNASample Preparation v2 Guide) at the PCR ...
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29 views

How does drinking 25 mg-50mg Viagra every night cure Erectile Disfunction permanently? [closed]

https://www.webmd.com/erectile-dysfunction/news/20040513/nightly-viagra-may-restore-normal-erections#2 This article says that people taking viagra once daily can have erection restored permanently ...
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0answers
24 views

what are the plants that has two scientific names? [closed]

6.Give at least 5 plants with two different scientific names but referring to one species. Common Name Scientific Name Family Name example. Balanti-bilog ...
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0answers
53 views

What type of fish is this

I saw this fish in an aquarium in a nearby house .I am not sure which species and sex this fish belongs to. [![enter image description here][1]][1] [1]: https://i.stack.imgur.com/oOAZx.jpg
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1answer
41 views

unknown bird in Long Lake Michigan…chocolate brown head and neck, charcoal body and tail, ivory wings, top and bottom

light chocolate head and neck w/ charcoal body and tail. the wings are ivory white, top and bottom from the body outwards. the colors are clear.....not mixed with other colors. no stripes or spots, ...
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0answers
28 views

Are neurons from different species the same?

This list List of animals by number of neurons compare different animals by number of neurons. Regardless if there is different type of neurons in the same animals, can different animal neurons be ...
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1answer
1k views

What animal has fat with the highest energy density?

Fat is more energy-dense than protein and carbohydrates, it is not only an energy deposit but also an organ with many functions such as cushioning and metabolism regulations. I want to know are animal ...
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0answers
29 views

explain the process that leads to the number of DNA become double during cell division [closed]

(https://i.stack.imgur.com/Cny7B.jpg) explain the process that leads to the number of DNA become double during cell division. (explaination must include the mechanism of process and relate it to the ...
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0answers
12 views

Plant physiology [closed]

If turgor pressure and Wall pressure both are equal and opposite then what stops water from entering into the cell as there is no other pressure Or force to stop osmotic pressure? PLZ ANSWER IN BRIEF.
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13 views

Determination of the density of fungi sclerotia in soil

The garlic I planted in my garden last year was infected by white rot (Sclerotium cepivorum). I'd like to inspect how much of the white rot sclerotia is present in the soil. I've googled and found ...
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0answers
16 views

Does the prefrontal cortex fold over the diencephalon (limbic lobe) during embryogenesis?

The frontal lobe as the top of the vertebrate brain, does it fold over the diencephalon during embryogenesis and development of the brain?
39
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1answer
14k views

Is a butterfly one or two animals?

I have read somewhere that a butterfly might be two animals that combined together. One animal was a worm-like creature and the other an insect. And the insect basically hatched inside the worm. ...
1
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1answer
54 views

Why do birds that walk on the ground walk so “bumpy”?

Why do birds that walk on the ground walk so "bumpy"? Most other animals walk quite smooth, doesn't matter if they are mammals, reptiles or insects or walk on two, four or more legs. Birds seem to be ...
3
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0answers
26 views

Is “Oxygen-Starvation” during exercise a real phenomen?

Cross-Posted from Physical Exercise, as I suspect this Q is a bit more bio-science focussed than is appropriate for that StackExchange I play hockey (field hockey) at a slightly-below-elite level. I ...
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0answers
96 views

Has anyone 'broken' an organism and then restored it to life?

Has anyone 'broken' an organism, rendering it unable to reproduce, then repaired it and observed it returned to being able to reproduce? An example would be to restore the reproductive capacity to a ...
1
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1answer
27 views

General Enhancer Questions (Methylation Patterns, ect.)

I have a biological question(s) for ya'll involving enhancers. 1.) Enhancers work by being the binding sites for TFs. But how does this increase transcription? (Especially when enhancers can be ...
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0answers
28 views

“interaction with water is a primary factor in determining the type of structure form” [on hold]

my prof asked me to gave examples to this statements, could someone help me? been searching and can't find one. Thank you!!
3
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1answer
47 views

What species is this burrow-digging insect?

Hi Biology StackExchange, These are frames from a recent recording: Location Urban area in Central Europe. Abiotic factors at the time of recording Temperature = 27° Humidity = 51% Wind = 16 km/h ...
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34 views

Can anyone please help me identify my house plant?

I know this may be an impossible task, but I am one to hope ! My mum had a house plant which had small, green, oval shaped leaves which naturally grew towards the ground (hanging plant). Once every ...
0
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1answer
27 views

Is the chitin in an insect's exoskeleton cross-linked?

This answer to the question How to clean and preserve a cicada's molted exoskeleton (exuvia)? states: The exuvia is made of cross-liked chitin, and will not decay. You don't need any special ...
3
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0answers
41 views

What is the name of this flower (on a tree)?

Here is a photo of a big red flower-like structure on a tree on Lama Island, close to Hong Kong. Does anyone know the name of the tree and what the black "berries" are attached to the "flower"?
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16 views

What does Flow Head determine in Avida-ED? [on hold]

In Avida-ED, what does Flow Head pointer indicate?
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0answers
20 views

What happens when the body is deprived of oxygen? [on hold]

On the internet and TV shows I have heard that , depriving the body from the oxygen, body comes close to the death and other problems like stress, depression and problems in your life doesn't matter ...
6
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1answer
71 views

Why is sugar absorbed very fast into the blood stream?

Recently, I heard from a pregnant person I know that immediately after she eats something sugary/sweet, the baby starts kicking and moving around, as if reacting to the sugar. She told me (...
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0answers
49 views

Laurasia and Gondwana [on hold]

The Cambrian explosion was 540 mya. Laurasia and Gondwana didnt collide until 330 mya. So for 210 million years the land was divided into two large continents. Plants and insects had already colonized ...
1
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1answer
42 views

Which species of bee or wasp are in this photo?

Please tell me what do you think :) The photo is from Santander, Colombia. I didn’t take any closeups photos 😞, but these were little bees, like 5 x 1 mm. The tube didn’t seem man-made, it was ...
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0answers
18 views

Age until physical growth ceases, mammals

Fairly basic, but I am seeking a table showing how many years from birth it takes for the best-known mammals to stop growing. (Including the latest on humans - ie. 0-17..?).
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0answers
10 views

NovoPro or other Contract Research gene synthesis / sub-cloning services

My first post here, and it's to seek advice from anyone who may have used gene synthesis and / or sub-cloning services from this company called NovoPro in China. I tried to look for customer reviews ...
2
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1answer
42 views
+50

Understanding presynaptic and postsynaptic inhibition

One way to classify neural inhibition is based on the inhibition being "presynaptic" or "postsynaptic". As far as I understand, the two different types of inhibition refer to the following: ...
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18 views

How does the cardiovascular system improve upon repeated, strenuous exercise?

New here, hopefully this is the right place to post this question. It's widely known that repeated, strenuous aerobic exercise gradually improves the capacity of one's cardiovascular system — $\text{...
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0answers
12 views

Allelic dominance and recessiveness [duplicate]

What is the reason for the allelic dominance and recessiveness of a gene? Is it all about the chance or probability of getting the fusion of a particular character ? So how can be there a dominance ...
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0answers
38 views

May two reactions, that share the same reactant, fire at the same moment?

I'm studying metabolic networks from a bioinformatics point of view, but I guess my question is pretty biological so I thought that maybe here I could get the best answers. So, as the title says I ...
0
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1answer
22 views

Lipid packing defect [on hold]

I have been trying to understand the phenomenon of lipid packing defect, but the resources in this subject are very limited. Well, I did find some papers, but before reading papers, I want to have ...
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0answers
16 views

How does Brachygastra mellifica honey differs from Apis mellifera honey?

I need help in a reserach paper. I'm writting about bee's and wasp's honey and how do they differ in amout of glicose, taste (that's usually down to the flowers that they snack on), if it's made (and ...
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0answers
7 views

Science behind IGF-1 levels increase in milk from rBGH or rBGT treated cows

It is obvious that the use of rBGH or rBGT increases the IGF-1 levels in milk, but from all the research I have done on the internet I did not find why, well yeh cause they inject that hormone but how ...
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0answers
13 views

Are cold weather tolerance and spicy food tolerance related physiologically?

If a person grew up in a cold place they happily walk outside in winter in short sleeves and shorts in places with mild Winters while the locals are bundled up in thick jackets. Spicy food with ...
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1answer
19 views

How do rare mosquito borne diseases get transmitted if they are so rare?

I recently read a somewhat alarmist notice by the state board of health in NH who claimed that some man had tested positive for Jamestown Canyon virus, a rare disease even in its natural environment ...
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1answer
40 views

What is this? Is it harmful?

Anyone find out what this is? Looks like A Caterpillar with a home it made from surrounding items, this was found in VA in the moutians on our home.! It went back inside its home after attempting to ...
1
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1answer
53 views

What are the differences between mammal and insect digestion of cellulose?

I know that digestion of cellulose is difficult in mammals and requires a lot of steps. But I am fascinated by the idea of one day achieving human digestion of cellulose. Which got me thinking about ...
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0answers
10 views

What specific criteria do you use to choose E.coli strain for the experiments? What is the most standard strain?

For my specific case, I would like to know what plasmid to use to express two particular proteins (one of them being the GFP reporter) with its specific promoters. But more important than the answer ...
-1
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0answers
30 views

Which life flourish in winter and slow down/hibernate in the rest of the seasons? [on hold]

As the question title. Is there any life that go opposite with the mating/growing season of the majority, who flourishes when food and condition is harsh rather than abundant ?
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0answers
33 views

The selfish gene; why do we care about the well being of other species? [closed]

I am mid-way through Dawkins' book along with my new sapio-bromance with Robert Sapolsky. I have been wondering how you can settle on discrediting Group Selection in that we don't do anything for the ...
1
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1answer
48 views

Trying to identify a bug that left a blood spot when killed

Hi, this was flying around inside the car in northwestern Maryland, USA, yesterday. When I squished it with a tissue I was surprised to see a red spot that appeared to be blood. Cannot find a picture ...
0
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1answer
31 views

Why do my tomatoes start to rot on the same fruit part?

I observe a phenomenon for many years now. I observe it on a wide diversity of tomatoes produced all over Europe and Northern Africa that are sold at my local supermarket. When I keep my tomatoes at ...
0
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1answer
41 views

Are there species which is debatable if they should be classified as animals or plants?

I'm watching a sci fi series and a character who is a biologist claims "even on Earth there are species which is debatable if they should be classified as animals or plants". I looked for examples of ...
1
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1answer
27 views

Difference between “controlled release” vs “prolonged release”

My sister is using the epilepsy drug Tegretol which has both CR and retard (previous naming for prolonged release according to https://www.medicines.org.uk/emc/product/5932/smpc) versions in different ...

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