what is the average lifespan of a sperm cell​

Answers

Answer 1

[tex]Hello[/tex] [tex]There![/tex]

The answer is...

5 days at least.

Good luck!

[tex]AnimeVines[/tex]

Answer 2

Explanation:

the answer is up to 5 days


Related Questions


Which of these
describes
humoral immunity?

A. the binding of antigen and antibody triggering a response of
plasma and memory b-cells to attack
B. t-cells and macrophages fighting infected cells that are non-self
or cancerous
C. our body remembering pathogens it has fought off or learning
from vaccines
D. obtaining immunity from an outside source, like mother to baby

Answers

According to the research, the binding of antigen and antibody triggering a response of plasma and memory b-cells to attack describes humoral immunity.

What is humoral immunity?

It is the immune response mediated by specific antibodies designed to eliminate extracellular pathogens and prevent the spread of intracellular ones.

Antibodies are specific proteins synthesized by plasma cells, the immediate progenitors of these cells are memory b-cells that are capable of reacting with foreign molecules to the body, called antigens.

Therefore, we can conclude that according to the research, the binding of antigen and antibody triggering a response of plasma and memory b-cells to attack describes humoral immunity.

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Answer:

A.

Explanation:

It worked for me.

Which of the following is the
compound of the chemical
formula NO?
A. Nitrate
B. Nitrogen gas
C. Ammonia

Answers

**Its nitrate**
Nitrogen (N) + Oxygen (O) = nitrate

Nucleic acids are biomolecules that create
O DNA and RNA
O glucose
O cholesterol
O hormones

Answers

They make up genetic material so it should be DNA and RNA

Answer:

Nucleic acids are naturally occurring chemical compounds that serve as the primary information-carrying molecules in cells and makeup the genetic material. Nucleic acids are found in abundance in all living things, where they create, encode, and then store information of every living cell of every life-form on Earth.

Why did heating the water affect the surface? I need help my mother is making me di science and im so confused :( I doubt this is biology..

Answers

Changes in the surface temperature heat or cool the air above, which leads to air movement (wind). Solar heating of the Earth's surface is uneven because land heats faster than water, and this causes air to warm, expand and rise over land while it cools and sinks over the cooler surfaces.

What is life please explain

Answers

Answer:

the existence of an individual human being like you and me and all of us life can also add up animals

IN YOUR OWN WORDS, what is the definition for Down Syndrome?

Answers

Answer:

A common birth defect that is usually due to an extra chromosome 21( trisomy 21) .

If a mutation occurs in the coding sequence of a gene, what types of
issues might happen?
Select one:
A) All of these answers.
B) The gene could be expressed in the wrong cell.
C) The gene could be unaffected.
D) The gene could be permanently broken.

Answers

Answer:

A

Explanation:

It will be all because of the fact that mutation does sometimes harm the genes and cells so any types of issues might happen

why glucose need to returned to the blood

Answers

The cells need glucose for energy. ... The liver absorbs glucose then changes it into a storage molecule called glycogen. When blood sugar levels drop, glucagon instructs the liver to convert the glycogen back to glucose, causing blood sugar levels to return to normal.

Which organism is an animal-like protist?
cilia
dinoflagellate
amoeba
truffle

Answers

Answer:

✅ C. amoeba

just took the test

The organism that is an animal-like protist is the amoeba.

What are amoebas?

Amoebas are a group of single-celled organisms belonging to the phylum Amoebozoa. They are classified as protists, which are a diverse group of eukaryotic microorganisms that do not fit into the categories of plants, animals, or fungi.

Amoebas are characterized by their ability to move and change shape through the use of pseudopodia, which are temporary extensions of their cell membrane. These extensions allow amoebas to engulf and surround their food, typically consisting of bacteria, algae, or other small organisms.

Amoebas are single-celled protists that move using pseudopodia, which are temporary extensions of their cell membrane. They are classified as animal-like because of their ability to move and capture food in a similar manner to animals. Amoebas belong to the phylum Amoebozoa and are commonly found in freshwater and soil environments.

The correct answer is amoeba.

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Which is an important difference between light-dependent (L-D) and light-independent (L-IND) reactions in photosynthesis?

Answers

Answer:

The L-D reactions require light energy and water, and the L-IND reactions require ATP, NADPH and CO2.

Explanation:

What is a truck's acceleration if the net external force on the truck is 560 N and it has a total of mass of 1000 kg?

Answers

Answer:

0.56m/s²

Explanation:

The above is the correct answer.

Force = mass x acceleration = mg

⇒ F = mg

where F = 560 N, m = 1000kg

∴ g = F/m = 560/1000 = 0.56

∴ acceleration, g = 0.56m/s² (answer)

Force is known to be a push or a pull which actually puts a body to motion or brings a body to rest.  It has to do with the interaction between bodies.

consider the differences in solids, liquids and gasses, and their surface area. which state of matter do you think would usually have the greatest rate of reaction, and why?

Answers

Answer:

el que tendrá mayor velocidad de reacción son los líquidos

Explanation:

Musculo que tiene las características tanto de musculo esquelético como de musculo liso. Se encuentra en el corazón y sus contracciones son involuntarias

Answers

Answer:

músculo cardíaco

Explanation:

Los 3 tipos de tejido muscular son 1-músculo cardíaco o miocardio (involuntario), 2-músculo liso (involuntario) y 3-músculo esquelético (voluntario). Las células del músculo cardíaco, las cuales son conocidas como 'miocardiocitos', poseen una apariencia estriada y forman la pared del corazón. Los miocardiocitos son alargados, ramificados, y poseen un núcleo central (son células uninucleadas, a diferencia de las células del músculo esquelético, las cuales son multinucleadas). Además, los micardicitos son más cortos (80 a 100 µm) y más anchos (aprox. 15 µm) que las células del músculo esquelético. Los miocardiocitos presentan uniones especializadas conocidas como discos intercalares, los cuales son un tipo de complejo de unión entre los límites de dos cardiomiocitos. En el citoplasma de los cardiomiocitos se encuentran las miofibrillas, las cuales son estructuras contráctililes que les confieren a las células musculares sus propiedades características de contracción y de elasticidad. En estas células (cardiomiocitos) las miofibrillas se disponen de manera longitudininal con un patrón estriado.

Match the surface to its respective albedo score. fresh snow soil ocean (high-angle sun) ocean (low-angle sun) 0.95 arrowRight 0.2 arrowRight 0.9 arrowRight 0.05 arrowRight Reset Next

Answers

Answer:

fresh snow → 0.9soil → 0.2ocean (high-angle sun) → 0.05ocean (low-angle sun → 0.95

Explanation:

Albedo is the radiation reflected by the earth´s surface to the universe.

Albedo might be defined as a relation between reflected light from a particle and the incident light. It is the fraction of the incident radiation that is reflected by any object. If the surface is mostly clear and clean, most of the incident radiation is reflected. But if the surface is dark and rugose, most of the incident radiation is absorbed, and the temperature of the absorbing object will increase.

Albedo value is always inferior or equal to one and can be expressed as a percentage. The surface that reflects 100% of the incident light will have an albedo value = 1. But if the surface absorbs all the radiation and does not reflect any percentage, the albedo value = 0. Note: there is no real object that might reflect or absorb 100% of the incident radiation.

The importance of albedo is that it avoids high temperatures on the earth. There are many different surfaces with different albedo values. Global variations in albedo are natural processes due to exogenic and endogenic variations. But to these natural events, we must add all the variations caused by human beings´ actions, which increase greenhouse gases, decreasing albedo, and increasing global warming. The increase of greenhouse gases, such as CO₂, decreases albedo. The same occurs with atmospheric dust due to volcanic eruptions. Additional material interposes between the earth´s surface and the universe, decreasing the energy return to the universe.

fresh snow → 0.9   soil → 0.2ocean (high-angle sun) → 0.05ocean (low-angle sun → 0.95

e)Name the force provided by the leaves of tall trees which draws
more water due to adhesion.

Answers

Answer:

Capillary action

Explanation:

Capillary action helps bring water up into the roots. With the help of adhesion and cohesion, water can work it's way all the way up to the branches and leaves. Read on to learn more about how this movement of water takes place.

How can an allele frequency
increase?

A. Allele frequencies always stay the
same.
B. Random mating occurs within the
population
quency
C. An allele becomes more common in a
population.

Answers

Answer:

C

Explanation:

Natural Selection can cause micro evolution, or a change in allele frequency over time

An allele becomes more common in a population. So, the correct option is (C).

What is an Allele Frequency?

Allele frequency is also known as gene frequency. It is defined as the relative frequency of an allele at a particular locus in a population, expressed as a fraction or percentage. It is the fraction of all chromosomes in the population that carry that allele over the total population or sample size.

It forms the basis of many population and medical genetic studies. Many evolutionary forces change allele frequencies where allele frequencies can be used to trace past evolutionary events.

Allele Frequency is expressed as:

[tex]1 = p^2 + 2pq + q^2[/tex]

p and q each represent the allele frequency of different alleles.

Thus, an allele becomes more common in a population. So, the correct option is (C).

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Which two factors cause one part of Earth to have summer while another part
has winter?

Answers

Answer:

The earths axis

Explanation:

For the earth being on its axis causing it to be on the side so while one side is getting heat the other gets cold this also cause the days to change

please tell me the answer ​

Answers

Answer:

1)the process being studied in the picture is transpiration I guess

3)the pot is covered with plastic sheet to trap the water (vapour) which is being evaporated

An essential amino acid can be synthesized in the body if caloric intake is adequate. cannot be synthesized in the body in sufficient quantity to meet body needs. can be formed in the body from nonessential amino acids. can be synthesized in the body if there is a nitrogen source.

Answers

Answer:

cannot be synthesized in the body in sufficient quantity to meet body needs.  

Explanation:

Amino acids are defined as the structural units which make up the proteins in our bodies. They help to break down foods, repair tissues, and serves many more functions.

Our body is not capable of making the essential amino acids that are required by the body. They should be come from the food we eat.  And hence the essential amino acids cannot be synthesized in our body in the sufficient quantity to meet our body needs.

two example of viruses​

Answers

Answer:

Trojanic bomb.

Polymorphic virus.

Boot sector virus.

Examples of Viruses:

-Coronavirus
-Rabies
-HIV (AIDS)
-Influenza
-Hantavirus
-Ebola
-Dengue
-Diphtheria
-Hepatitis
-Rubella
-Smallpox
-Measles
-HPV


Hope this helps! Please make me the brainliest, it’s not necessary but appreciated, I put a lot of effort and research into my answers. Have a good day, stay safe and stay healthy.

The lipid bilayer membrane of a neuron is impermeable to charged molecules or ions. To enter or exit the neuron, ions must pass through special proteins called ion channels that span the membrane. Ion channels have different configurations: open, closed, and inactive. Some ion channels need to be activated in order to open and allow ions to pass into or out of the cell. Which ion channels are used in the production of electrical signals (Action Potential) in neurons

Answers

Answer:

The correct answer is: in neurons, the most used ion channels in the production of action potentials are the channels that allow fo passage of sodium and potassium.

Explanation:

Neurons must be able to transmit and receive signals in order for the nervous system to operate. Because each neuron has a charged cellular membrane (a voltage differential between the interior and the exterior), the charge of this membrane can vary in response to neurotransmitter molecules generated by other neurons as well as external stimuli. The membrane potential is the difference in total charge between the interior and outside of the cell. This membrane potential exists thanks to the state of ion channels that may or may not allow the passage of certain ions.

A substance called a neurotransmitter allows a neuron to accept input from other neurons. The neuron will transmit the signal to downstream neurons if the input is powerful enough. The opening and shutting of voltage-gated ion channels, which produce a transient reversal of the resting membrane potential to form an action potential, are used to transmit a signal within a neuron (in one direction only, from dendrite to axon terminal). The polarity of an action potential changes across the membrane as it travels down the axon. The signal then activates other neurons once it reaches the axon terminal.

The target neuron is depolarized to its threshold potential (-55 mV) by a stimulation from a sensory cell or another neuron, and Na+ channels in the axon hillock open, initiating an action potential. The neuron totally depolarizes to a membrane potential of around +40 mV after the sodium channels open. As Na+ channels open, the action potential moves along the neuron.

The cell's membrane voltage is "reset" to the resting potential after depolarization is complete. The Na+ channels shut, signaling the start of the refractory phase in the neuron. Voltage-gated K+ channels open at the same moment, allowing K+ to escape the cell. The membrane potential returns to a negative state as K+ ions exit the cell. The cell becomes hyperpolarized when K+ diffuses out of it, resulting in a membrane potential that is lower than the cell's usual resting potential. The sodium channels revert to their resting state at this moment, ready to open again if the membrane potential rises over the threshold potential again.

A point mutation that changes a codon specifying an amino acid into a new codon coding another amino acid is called: a. Deletion mutation. b. Missense mutation. c. Nonsense mutation. d. Frameshift mutation.

Answers

Answer:frame shift

Explanation:

Compare and contrast the cell structures / organelles found in plant and animal cells
• list 3 organelle / structure plant and animal cells have that are the same
• list 2 organelles / structures plant and animal cells have that are different

Answers

Answer:

Explanation:I need to get some answers too

The smell of freshly cut grass occurs because the plant is signaling it is in distress, simultaneously warning other plants, trying to attract a creature to save it, and signaling to the cells around it to divide to close the wound. This type of signal would most likely be:

A. Local signaling
B. Synapse
C. Enzyme
D. Hormone

Answers

Answer:

A. local signaling

Explanation:

the answer is A) local signaling

How is matter converted into energy in the sun’s core?
A. Helium isotopes decay, releasing energy in the process.
B. Hydrogen nuclei collide and fuse, releasing energy in the process.
C. Hydrogen nuclei collide and fuse, consuming energy.
D. Hydrogen nuclei split apart, releasing energy in the process.

Answers

The answer is B! The process released energy because the total mass of the resulting nuclei is less than the mass of the original two nuclei. The leftover mass then becomes becomes energy. :)

Most people need more daily allowances of servings from the what
food group

Answers

Answer:

According to the U.S. Department of Agriculture, you should consume the highest proportion of your foods from the grain group. However, you should consume almost as many portions from the vegetable group; fill your plate a little over one-fourth full with grains and add almost the same amount of vegetables.

Explanation:

Mary determined that 5 pollen grains could fit along the diameter of the field of view of her microscope. If each pollen grain has a diameter of 0.3mm what is the diameter in millimeters of the field of view of Mary's microscope
1.5mm
15mm
4.7mm
5.3mm

Answers

Answer:

1.5mm

Explanation:

According to this question, Mary is trying to view 5 pollen grains under her microscope. She found out that the 5 pollen grains each with a diameter of 0.3mm could fit along the diameter of the field of view of her microscope.

This means that the diameter of the field of view of Mary's microscope can be calculated as follows:

Diameter of each pollen × no. of pollen that fit in

= 0.3mm × 5

= 1.5mm

Hence, the diameter of the field of view of Mary's microscope is 1.5mm.

Which hormone can be found in many fruits and can become airborne and cause over-ripening and abscission

Answers

Ethylene is a plant hormone that is released in the form of gas. It stimulates plant cells degradation making the fruits softer and sweeter. As a result, high ethylene levels may cause fruits over-ripening and abscission.

Answer:

Ethylene is a plant hormone that is released in the form of gas. It stimulates plant cells degradation making the fruits softer and sweeter. As a result, high ethylene levels may cause fruits over-ripening and abscission.

Explanation:

Name the landscape region that contains the youngest rock material.

Answers

The answer should be Atlantic Coastal Plain

Which type of white blood cell is activated by antigens that are bound to antibodies?
monocytes
eosinophils
basophils
neutrophils

Answers

Answer:

basophils

Explanation:

Basophils are a class of white blood cells known as granulocyte, which also include neutrophils, eosinophils, and mast cells. These cells (basophils) are generated in the bone marrow as other white blood cells. When stimulated, basophils degranulate to release histamine, proteoglycans, and proteolytic enzymes and thus mediate immune responses. This process of degranulation occurs when a specific antigen binds to the IgE receptor on the basophil. Moreover, basophils may also be activated by inflammatory mediators (e.g., complement factors such as C5a and C3a, chemokines, etc).

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Plz help me i need this question solution Beech Company produced and sold 105,000 units of its product in May. For the level of production achieved in May, the budgeted amounts were: sales, $1,300,000; variable costs, $750,000; and fixed costs, $300,000. 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