Filipe Rocha
  • Member for 4 years, 9 months
  • Last seen more than a month ago
2 answers
0 votes
629 views
What is the philosophical definition of life?
3 votes

They ask different questions. Philosophy may ask what is life, is there a purpose behind it, etc. Biology asks how does it work, chemistry what are the chemical reactions that drive it, physics maybe ...

View answer
2 answers
5 votes
1k views
What is the specific role of the cerebellum when it comes to 'coordinating movement'?
3 votes

When attempting to execute a movement, a signal is not only sent from the motor cortex through the spinal chord and to the muscles, but also one is sent from the same motor cortex to the cerebellum, ...

View answer
1 answers
1 votes
658 views
High Blood Pressure - Na or NaCl?
3 votes

High blood pressure is caused by an excessive amount of fluid circulating in the blood vessels, or an excessively small mean blood vessel diameter. The later is more associated with stress situations ...

View answer
1 answers
2 votes
1k views
Why is your taste affected due to sinuses?
3 votes

The first thing which is important to note is the difference between taste and flavor. Taste refers to the chemical sense performed by taste buds present on the tongue, and to date there have been ...

View answer
6 answers
6 votes
19k views
Why should evolution not be equated with progress?
2 votes

When you say, humans are more advanced than dogs, from what perspective are you saying that from? Is it in the capacity to use intelligence, to build and create, to do the math, to climb trees? If it ...

View answer
1 answers
1 votes
328 views
How is energy acquired from ATP?
Accepted answer
2 votes

The basic reaction is ATP + H2O --> ADP + Pi + energy It is the common hydrolysis of ATP, in which the nucleophilic oxygen of water attacks the electrophilic central phosphorus of the last phosphate ...

View answer
1 answers
1 votes
152 views
What is the advantage of not having cytokinesis after karyokinesis?
Accepted answer
2 votes

The absence of cytokinesis allows the two nuclei to remain in the same cell. If a cell has 2 nuclei instead of 1, it can transcribe DNA to mRNA at double the maximum speed, and so produce the desired ...

View answer
2 answers
8 votes
7k views
Why do people with type O blood have anti-A and anti-B antibodies?
1 votes

Antibody-producing cells (B lymphocytes) generate antibodies through a gene recombination process, that allows a virtually infinite number of antibodies to different antigens to be created, including ...

View answer
1 answers
1 votes
1k views
What's the difference between physical (direct) and functional (indirect) protein interaction?
1 votes

As I understand it, "physical" and "functional" are just two different ways of analyzing an interaction between proteins. Proteins can and do interact physically, meaning they can bind in specific ...

View answer
1 answers
2 votes
409 views
How spinal cord play its roles in human beings sex?
Accepted answer
0 votes

One of the major functions of the spinal cord is to serve as a "highway" for signals to travel between the brain and the sensory (and motor) organs. Thus, sensory the signals that are generated on the ...

View answer
2 answers
3 votes
160 views
How can dehydrogenation steps in some biochemical pathways produce ATP?
0 votes

The reason is that the reaction is not solely a dehydrogenation, but more properly, oxidation of the two central atoms. In the C-H bond, the C is more electronegative, which means the electrons they ...

View answer
3 answers
4 votes
8k views
What prevents backflow of blood from right atrium to vena cava during atrial systole
Accepted answer
0 votes

Besides @Bryan Krause answer, there's another very important factor that prevents the blood from flowing back from the right atrium to the vena cava during systole. Part of the muscle that ...

View answer
3 answers
4 votes
797 views
What is the term for awareness of or inclusion of real sounds within a dream?
-1 votes

My answer is going to be verily based on my experience and thinking, so don't take it for absolute. When we are dreaming, at the level of the brain, sensual (meaning from senses) experience is being ...

View answer