which process is response for gas exchange in the lungs
Answer:
Diffusion is the spontaneous movement of gases,Explanation:
Answer:
External respiration
Explanation:
Is the circled karyotype a male or female?
female
male
Answer: A normal female karyotype is written 46, XX, and a normal male karyotype is written 46, XY.
Explanation:
What is the molecule that leaves the calvin cycle to be converted into glucose?.
Answer:
G3P Molecules
Explanation:
The molecules of ADP and NAD+, resulting from the reduction reaction, return to the light-dependent reactions to be re-energized. One of the G3P molecules leaves the Calvin cycle to contribute to the formation of the carbohydrate molecule, which is commonly glucose (C6H12O6).
What is both the thickest and longest nerve in the body?
Answer:
The sciatic nerve
Explanation:
in humans, how does the circulatory system bring oxygen to every cell in the body?
Answer:
I found this in a science text, hope it helps.
Explanation:
"Blood from the heart is pumped throughout the body using blood vessels. Arteries carry blood away from the heart and into capillaries, providing oxygen (and other nutrients) to tissue and cells. Once oxygen is removed, the blood travels back to the lungs, where it is reoxygenated and returned by veins to the heart."
Basically, blood from the heart is taken away by arteries and then into capillaries, transferring oxygen to cells.
I hope I could help!
The circulatory system of human body brings about oxygen to the every cell by the help of blood. The heart of human body helps to pump up the blood with oxygen and makes it oxygenated.
What is the size of a human heart ?A size of a human heart is a size of a human fist it has 4 chambers where with 2 auricles and 2 ventricles. The auricles receive the oxygenated blood and the ventricles get the deoxygenated blood.
The human heart is bringing oxygen to the cells of the body where the oxygen combined with the Fe component that is iron of the blood and reaches every cell of the blood through the blood. Blood is transported to every cell of the body through the blood vessels.
Arteries carry the oxygenated blood and ventricles carry the deoxygenated blood where the blood that reaches the cellular level by the veins and the arteries along with the blood vessels that form a network.
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which organism is made up of one prokaryotic cell?
Answer:
Bacteria
Explanation:
Describe the role that rivers and streams play in the water cycle.
What is ONE way in which geologists may utilize GPS and satellite mapping?
A way through which geologists may utilize GPS and satellite mapping is to monitor the changes in the environment.
A global positioning system refers to a network of receiving devices and satellites that are used to determine the location of a particular thing on Earth.
It should be noted that a global positioning system (GPS) and satellite mapping can be used in monitoring changes in the environment. It can also be used to collect accurate field data when mapping or surveying.
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Beaches are monitored to protect public health. Waterborne pathogens can cause illnesses. Which of the following ways can pathogens enter coastal waters?
Leaking sewer pipes and untreated wastewater
Precipitation through the water cycle
The changing of low tide to high tide
Through the interactions of marine organisms and plants
Waterborne pathogens can enter coastal waters via leaking sewer pipes and untreated wastewater.
Sewage and untreated wastewaters are filled with microbes some of which are capable of causing diseases to humans and livestock if given the opportunity. Hence, the seeping of these waters into coastal water is a risk to humans who might want to swim or make use of coastal waters.
Precipitation, changing of tides and the interactions of marine organisms and plants will ordinarily not form pathways through which pathogens can gain access to coastal waters.
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define active transport in your own words
Answer: Define Active transport
Explanation: The moving of molecules or ions across the cell membrane.
Hope this helps!
How do rocks become igneous rock?
Answer:
Igneous rocks form when magma (molten rock) cools and crystallizes
Explanation:
So first when the sedimentary rock is formed and adds some heat pressure in which it turns to metamorphic rock, and after a long time heat + cool down which it will turn to igneous rock!
Choose the answer that correctly lists, in chronological order, the events involved in synaptic transmission.
a: A nerve impulse reaches the synaptic knob.
b: Neurotransmitter molecules diffuse across the synaptic cleft.
c: A nerve impulse begins in the postsynaptic cell.
d: Neurotransmitter molecules bind to receptors in the postsynaptic cell.
e: A voltage change occurs in the postsynaptic cell.
Answer: hi im brain bot
im not sure i know this one im stumped
Explanation:
The event occurs as nerve impulse reaches the synaptic knob, neurotransmitter molecules diffuse across the synaptic cleft. These molecules bind to receptors in the postsynaptic cell and voltage change occurs in the postsynaptic cell. A nerve impulse begins in the postsynaptic cell. The correct option is C.
What is synaptic transmission?The metabolic pathway by which a neuron interacts with a target cell across a synapse is known as synaptic transmission.
Chemical synaptic transmission is characterized by the release of a neurotransmitter from the presynaptic neuron and the binding of the neurotransmitter to specific post-synaptic receptors.
Synaptic transmission is the process by which a nerve impulse (action potential) travels from the presynaptic neuron to the post-synaptic neuron across the synaptic gap. An action potential is an electrical impulse that travels down the axon of a neuron.
As the nerve impulse arrives at the synaptic knob, neurotransmitter molecules diffuse across the synaptic cleft. These molecules bind to receptors in the postsynaptic cell, causing voltage changes in the cell. and finally nerve impulse begins in the postsynaptic cell.
Thus, the correct option is C.
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Your question seems incomplete, the probable complete question is attached below:
receptors for neurotransmitters are of primary functional importance in assuring one-way synaptic transmission because they are mostly found on the _____.
Answer:
The axonal membrane (place as brainliest so others know its correct)
Receptors for neurotransmitters are of primary functional importance in assuring one-way synaptic transmission because they are mostly found on the Axonal membrane.
What are Neurotransmitters?Neurotransmitters may be defined as the type of chemical substances that are correspondingly liberated at the end of a nerve fiber by the arrival of a nerve impulse and, by diffusing across the synapse or junction. They are released in the location known as the synaptic cleft.
The receptors of these neurotransmitters are present in the plasma membrane of postsynaptic cells which selectively bind the transmitter. They are integral membrane glycoproteins with multiple transmembrane segments.
Some examples of neurotransmitters may include serotonin, GABA, dopamine, acetylcholine, etc.
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help help pls
choose the right letter
29. The ABO blood type gene is an example of which means that heterozygous display two phenotypes at the same time.
A. Fading
B.Incomplete dominance
C. Codominance
D. Advanced hybridism
Answer:
Codominance i believe :)
The gel below shows a result of the experiment you designed using the DNA of three different individuals (S1-S3). It also shows a negative (C-) and a positive (C ) control, as well as a DNA marker. Why did S2 have three bands
Restriction enzymes recognize specific nucleotidic sequences. The molecule with no recognition site will not be digested. Individual S2 probably had molecules with the recognition site and others with a different sequence.
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A restriction enzyme is a degradative polymer that recognizes and cuts up specific nucleotide sequences in DNA.
Restriction enzymes can produce cohesive cuts or blunt (abrupt) cuts, depending on the recognition sites.
The frequency in which the restriction enzyme will produce the cuts depends on the recognition sequences and the number of bases that compose them.
So restriction enzymes cut DNI molecules into different short sequences of varying lengths.
These pieces are called minisatellites and exhibit the existing variation from one person to the next.
These short sequences can be separated by using gel electrophoresis and will express a pattern of differentiation.
When the nucleotidic sequence of the DNA molecule does not include the recognition site, the enzyme will not cut this fragment. The enzyme does not digest this molecule.
Since the negative control does not have a recognition site, it is not digested by the enzyme.
The positive control is digested, meaning that these molecules carry the recognition site.
Probably DNA molecules from individual S1 do not have the recognition site either.
The enzyme recognizes the sequence in DNA from individual S3 and cuts it into two fragments.
The lane of Individual S2 includes both options: digested and not digested DNA. This means that the sample taken from this individual included DNA
⇒ carrying the sequence, and
⇒ not carrying the recognition sequence.
So enzymes digest molecules carrying the recognition sequence, and the other ones remain undigested.
Probably, individuals S1 and S3 are h0m0zyg0us, while individual S2 is heter0zyg0us.
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