Answer:
during embryonic development
Explanation:
Cell-to-cell communication is particularly important in regulating gene expression during the embryonic development.
Cells in the developing embryo are constantly communicating with their neighbors. The molecules used by them in sending and receiving signals are crucial for normal embryogenesis. Various intracellular signaling pathways have been discovered, some of which are activated in response to secreted growth factors.
However, a few important signaling pathways are used often during embryonic development to regulate various cellular processes that shape the developing embryo.
Embryonic development is marked by the thorough regulation of cellular functioning so that the cells proliferate, migrate, differentiate, and form tissues at the correct place and time. These processes are genetically controlled and depend both on the history of cells, their lineage, as well as on the activities of signaling pathways, which coordinate the cell interactions leading to organogenesis.
To learn more about embryonic development here
https://brainly.com/question/9599868
#SPJ4
Two species cooperating to help each other is known as ____________.
A. Leguminism
B. Commensalism
C. Parasitism
D. Mutualism
Answer:
Mutualism
Explanation:
Mutualism is when two species work together to benefit each other. Like there are certain species of bird that sit on rhinos and eat pests/bugs on them, this benefits the bird cuz it gets food and it benefits rhino cuz it does not get bugged (pun intended)
__________________________ is a hybrid of pure and applied science. academic research technoscience industrial research biotechnology
Technoscience is a hybrid of pure and applied science. academic research technoscience industrial research biotechnology.
Belgian philosopher Gilbert Hottois first used the term "technoscience" in the late 1970s. Sociologist Bruno Latour has used it to investigate the role of scientists and engineers in society as well as the relationship between technology and people.The term "technoscience" describes the close ties that exist in modern scientific research and development (R&D) between fields that were once thought to be fundamentally distinct from one another: technology and science. This distinction was made by philosophers. The degree of the relationship between science and technology as well as the focus on technology that the term techno(-)science places on it varies.Additionally, the majority of scientists and philosophers of science still view technology as applications and results of scientific advancement. Nevertheless, they acknowledge that technology's effectiveness and success help science to be realistic, objective, and universal.learn more about technoscience here: https://brainly.com/question/5043267
#SPJ4
When randomly selecting an adult, a denotes the event of selecting someone with blue eyes. What do and represent?.
P(A) represents the probability of selecting an adult with blue eyes.
P(Ā) represents the probability of selecting an adult who does not have blue eyes.
What is probability?Probability is a measure of how likely an event is to occur. Many events are impossible to predict with absolute certainty. We can only predict the chance of an event occurring, i.e., how likely it is to occur, using it. Probability can range from 0 to 1, with 0 indicating an impossible event and 1 indicating a certain event. The probability of all events in a sample space equals one.
[tex]Probability of event to happen P(E) = Number of favourable outcomes/Total Number of outcomes[/tex]
There are three major types of probabilities:
Theoretical ProbabilityExperimental ProbabilityAxiomatic ProbabilityWhat is Theoretical Probability?It is based on the possible chances of something to happen. The theoretical probability is mainly based on the reasoning behind probability. For example, if a coin is tossed, the theoretical probability of getting a head will be ½.
What are Complementary Events?The possibility that there will be only two outcomes, stating whether or not an event will occur. Examples of complementary events include a person coming or not coming to your house, getting a job or not getting a job, and so on. Essentially, the complement of an event occurring in the exact opposite probability that it will not occur. Here are some more examples:
Today will either rain or not rain.The student will either pass or fail the exam.You either win or you don't.Learn more about probability distribution:
https://brainly.com/question/14210034
#SPJ4
The correct answer is P(A) represents the probability that the adult selected has blue eyes.
P(Aˉ) represents the probability that the adult selected does not have blue eyes.
What is Probability?
The ratio of favorable outcomes to all possible outcomes of an event is known as the probability.
P(A) denotes the probability of an event A; in this case, it is given that A is the event of selecting someone with blue eyes.
P(Aˉ) denotes the probability that A does not occur. It signifies that the adult chosen in this instance won't have blue eyes.
To know more about the probability visit:- https://brainly.com/question/14210034
#SPJ4
The correct question is:-
When randomly selecting an adult, A denotes the event of selecting someone with blue eyes. What do P(A) and P(Aˉ) represent?
Which of the following is NOT a step in risk management?
A. risk assessment
B. risk reduction strategy
C. risk identification
D. refusing to reduce the risk regardless of the outcome
Answer:
D
Explanation:
reducing risk is the one of the best approach to risk management
In a classic experiment conducted by Cannon and Washburn (1912), they monitored stomach contractions and found them to be related to _____.
In a classic experiment conducted by Cannon and Washburn (1912), they monitored stomach contractions and found them to be related to hunger.
What is stomach contraction?Stomach, intestines, or abdominal muscles can constrict during a stomach spasm. It may feel like a tiny muscle twitch or stomach cramps, depending on which area of your body is spasming and how severely.Food is moved through the digestive tract by a sequence of wave-like muscle contractions called peristalsis. The process begins in the esophagus, where powerful waves of smooth muscle transport balls of swallowed food to the stomach.Primarily, hunger is a biologically induced urge for food, which is necessary for survival. So, it is possible to think of hunger as a biological characteristic of humans that can be measured and predicted in terms of appetite and food consumption.Nerve cells located in the hypothalamus are what cause the feeling of hunger when they are active.
Learn mora about hunger here:
https://brainly.com/question/7094238
#SPJ1
If a 0. 2-ml blood sample with a paco2 of 40 mm hg diffuses across a membrane into the e2 electrode containing 0. 3 ml of solution, the final paco2 in the blood sample will be::________
If a 0. 2-ml blood sample with a paco2 of 40 mm hg diffuses across a membrane into the e2 electrode containing 0. 3 ml of solution, the final paco2 in the blood sample will be less than 16 mm Hg.
What is paco2?
The partial pressure of carbon dioxide is specifically evaluates the carbon dioxide level in blood.
It is a determined by using a popular test called arterial blood gases (ABG) test.
It also also evaluates the partial pressure of oxygen (PaO2), bicarbonate (HCO3), and pH level of blood.
This test is performed on patients of lung diseases, neuromuscular diseases and also useful for getting a clear picture of the body's metabolic and respiratory conditions.
Hence the answer is less than 16 mm Hg.
Learn more about paco2, here:
https://brainly.com/question/14630896
#SPJ4
Plant cells placed in HYPOTONIC
conditions will remain
A. turgid
C. plasmolyzed
B. wilted
D. flaccid
Answer:
option no. C. is the correct answer.
Once habituation occurs, a new stimulus causes responsiveness to return to a high level, an increase called?
Once habituation occurs, a new stimulus causes responsiveness to return to a high level. This increase is called recovery.
Habituation is one of the simplest and commonly chosen forms of learning. It lets people tune out unnecessary stimuli and focus on the things that matter. Habituation is something that is happening on a daily basis at the time of any kind of learning but the person is usually unaware of it.
For example, if you are studying mathematics with music on it may feel distracting in the beginning, but habituation lets you tune out the noise and focus on what you are trying to learn.
Learn more about habituation at https://brainly.com/question/17355895
#SPJ4
By which proposed molecular mechanism does ca2 promote fusion of synaptic vesicles?
Through binding and inducing changes in synaptotagmin which causes the plasma membrane to curve, thus, facilitating fusion.
Ca2+ triggers synaptic vesicle exocytosis, therefore, releasing the neurotransmitters contained in the vesicles and initiating synaptic transmission. Synaptotagmin (syt) is a Ca2+ sensor which can induce fast and synchronous neurotransmitter release.
Synaptic transmission amidst pre- and post-synaptic neurons occurs when the pre-synaptic neuron terminal is temporarily depolarized upon an action potential, thereby, opening Ca2+ channels near the active zones of synapses. Ca2+ flows into the cytoplasm as the extracellular Ca2+ concentration is much higher than the cytoplasmic concentration . Successively, Ca2+ triggers fusion of neurotransmitter-filled synaptic vesicles with the presynaptic membrane in less than a millisecond.
Neurotransmitter molecules are released into the synaptic cleft upon fusion, which then bind to the receptors located in the postsynaptic membrane.
To know more about synaptic transmission here
https://brainly.com/question/13034204
#SPJ4
1. write down a brief summary of the main steps you took in the procedure and what the purpose of each step was. be sure to include any adjustments you may have made to the procedure, what they were, and why you made them.
It is important to consider that some pollutants are taken up easily by plants whereas other pollutants are difficult. This is because of their water solubility criteria. If a pollutant can be taken up by plant directly, it can cause more damages to the plant as compared to the pollutant which interacts from outside.
What is Pollutants?Pollutants can affect the photosynthesis:Some pollutants are toxic to plant metabolic reactions such as photosynthesis. This is because of their oxidative nature that can damage the photosystems. This ultimately impairs the plant functioning, e.g. ozone in the air.
Pollutants can affect the plant-associated microbial communities:Some pollutants such as antibiotics can target plant-associated bacterial communities that are required for plant health. Just like the human gut, plants also have beneficial bacteria that live inside the plant tissues. These bacteria are called endophytes. The harmful nature of the compounds can affect those bacteria which decreases plant fitness.
Pollutants can compete with nutrients that act as limiting factors:Some pollutants are hydrophobic in nature and make the beneficial nutrients less available to the plants. Likewise, some pollutants reduce the bioavailability of plant necessary nutrients directly. This results in reduced growth and development in plants.
To learn more about Pollutants, refer to:
https://brainly.com/question/24704410
#SPJ4
What type of anemia is caused by defective red blood cells with a shortened life span?
The name of the anemia is Hemolytic anemia which is caused by defective red blood cells.
It is simply a disorder in which red blood cells are more quickly destroyed as compared to what can be generated. The number of red blood cells decreases is called hemolysis.
It is also caused due to some infections in the body. As we know red blood cells carry oxygen and if the body has fewer number cells then proper oxygen is not carried out to the tissues and organs of the body.
If your body does not have proper oxygen, the body can't function properly. Oxygen is very important for us to function properly. Without oxygen, human life is impossible.
Learn more about red blood cells: https://brainly.com/question/12200034
#SPJ4
During dna replication, the enzyme dna polymerase adds new nucleotides to the ______ end of the sugar in the growing strand
During dna replication, the enzyme dna polymerase adds new nucleotides to the 3' end of the sugar in the growing strand
Alpha helices are a type of secondary structure in proteins. What is the length of a 37.0 kda single‑stranded α‑helical protein segment?
The protein having 37kda has 336.36 amino acids long, roughly making single-stranded alpha-helix 93.43 turns, giving it a rise in 504.4 Â (Armstrong).
A secondary structure component, an alpha helix, has an amino acid chain organised in a spiral. The following characteristics describe the perfect alpha helix:
It is a right-handed helix that completes one turn every 3.6 residues, rises by about 5.4 with each turn, and is often somewhat curved.Hydrogen bonds hold it together between the C=O of residue I and the NH of residue I+4.The (phi, psi) angles of all residues involved in an alpha-helix are comparable. These angles, around -60 and -50, are taken from the Ramachandran plot's bottom left quadrant.To learn more about alpha-helix click here
brainly.com/question/13163002
#SPJ4
The portions of the mature mrna where rna-binding proteins can attach in order to change rna stability are known as?
The segment of the the lymphatic pathway called the lymphatic vessels are most anatomically similar to which type of blood vessel?
The segment of the lymphatic pathway called the lymphatic vessels is most anatomically similar to the Cardiovascular vein.
The lymphatic vessels are similar to the cardiovascular veins.
The direction of transport of fluid:-Lymphatic vessels transport lymph from the tissues to the collecting ducts. This is the same function vein that transports blood from tissues to the heart. Pressure:-Lymphatic vessels work under low pressure as veins do.Valves:- Both lymphatics vessels and cardiovascular veins have a series of valves inside them that maintain the fluidity of lymph and blood throughout the pathway respectively.What is the lymphatic system?
The lymphatics system is the part of our immune system which consists of networks of vessels. These vessels carried out lymph from the tissue which has leaked out from the blood vessels. These lymphatic vessels and tissues work together to take back this lymph into the bloodstream.
Learn more about the Lymphatic system here: https://brainly.com/question/6504171
#SPJ1
Sperm cells get energy to power their movement from ________, which is contributed by the ________. sperm cells get energy to power their movement from ________, which is contributed by the ________
Answer:
a) fructose
b) seminal vesicles
What do the terrestrial planets have in common? Choose all that apply:
Select one or more:
a.
Low in Density
b.
High in Mass
c.
Low in Mass
d.
Smaller Radius
e.
Larger Radius
f.
High in Density
Answer: b. High in Mass, e. Larger Radius, f. High in Density
Explanation:
The terrestrial planets are all composed of solid materials such as rock or silicate contain metals throughout their crusts and all possess a solid surface. Another similarity is that all travel around the sun in a oval or elliptic orbit and at various eccentricities.
.
HELP! 30 points plus BRAINLIEST
Which one of the following methods is most effective in protecting the environment?
A) Finding new locations to store wastes where they are less likely to harm organisms.
B) Physically removing wastes that are in the environment.
C) Recycling materials so that fewer resources are used and less trash is produced.
D) Reducing the amount of materials used without recycling.
Answer:
you better give me brainliest
Explanation:
Recycling materials so that fewer resources are used and less trash is produced
Why is it important that scientists haven't identified a lokiarchaeote cell yet
Well, scientists are working hard to find out more about cells, so they should know all of the cells. The Lokiarchaeote cell is one of the only ones they have yet to find out stuff about. Scientists also need to know about it, because it is a part of our bodies, and maybe sometimes they can cause infection in the body. Scientists need to know if it could lead to some of the biggest infections ever.
What happens to the embryos as they journey along the conveyor belt? in brave new world
Decantation is the process of preparing embryos for the future. They receive vaccinations and immunizations against all diseases, and each embryo's caste is determined by the addition or exclusion of chemicals. Individuals are perfectly equipped for their state-determined fate once they have been decanted.
How are babies made in Brave New World?In Brave New World, artificial reproduction is used to build a "perfect" society. In a facility called "The Central London Hatching and Conditioning Center," babies are born in bottles. Once "hatched," the kids are brainwashed to accept certain moral principles that the book refers to as "hypnopedia."
The notion that society's well-being comes before an individual's is also instilled in the minds of the young. The youngsters are also told that they were made to accomplish their task and that there would be consequences if they did not do it, which goes along with this idea. Each child is placed into a specific container in order to have even more control over the children being created in the bottle. Each faction has a function within the civilization and is unable to deviate from that function.
Learn more about Brave New World here:
https://brainly.com/question/12307073
#SPJ4
put simple a b or c its not that hard
The correct answer choice from the statement above is:
Homeostasis is the the maintenance of a steady internal environment of an organisms.
Option B is the correct answer
What are hormones?Hormones are chemical messengers or substances which are produced by the endocrine glands and released to the sites of action where they are needed.
Below are few examples of some hormones which also help in homeostasis:
AdrenalineAldosteroneAntidiuretic hormoneAdrenocorticotropic hormoneOxytocinInsulinGlucagonTestosteroneOestrogenSo therefore, the correct answer choice from the statement above is:
Homeostasis is the the maintenance of a steady internal environment of an organisms
Complete question:
Which of the following statements best describes homeostasis. Simply put a b or c its not that hard
a. Homeostasis is regulation of external environment
b. Homeostasis is the maintenance of a steady international environment of an organisms
c. Homeostasis is movement of molecules from a region of higher concentration to a region of lower concentration
Learn more about about homeostasis:
https://brainly.com/question/1046675
#SPJ1
What is the bean-shaped organ that removes waste products from the blood and helps maintain fluid and electrolyte balance in the body?
A pair of bean-shaped organs called the kidneys filter blood and secrete urine. They eliminate wastes, regulate the body's fluid balance, and maintain the proper electrolyte levels.
Your blood is filtered by two bean-shaped organs called kidneys. The most intricate and important component of the urinary system is the kidney. About 200 quarts of fluid, or enough to fill a large bathtub, are filtered by the kidneys each day.
The fluids and electrolytes in your body (mostly water) are balanced by your kidneys as well. Salt and potassium are two examples of the important minerals known as electrolytes.
To know more about Kidneys refer:
https://brainly.com/question/13941295
#SPJ4
How do the integumentary, immune, lymph, and endocrine systems protect you? How are they different from the way your nervous, skeletal, and muscle systems protect you?
The integumentary, immune lymph and endocrine system protects us from infectious microorganisms which is different from the the way your nervous, skeletal, and muscle systems does.
What are the protective systems of the body?The protective systems of the body are those body system that helps protect the body against disease causing microorganisms. They include the following:
Nervous: This system helps establish a network of communication between the various cells of the body.Skeletal: This system provides support through the bones for movement.Muscle systems: This system protects the vital organs of the body by absorbing shock and reducing friction in the joints.There are other systems the protects the body which include:
The integumentary system: This serves as a protective layer for the whole body.Immune system: This is made up of immune cells that help fight foreign bodies.Lymph: This is contains lymphocytes that fights disease causing microorganisms.Endocrine system: this contains hormones that control almost all body process.Learn more about immune system here:
https://brainly.com/question/15975169
#SPJ1
Answer:
In contrast to your nervous, skeletal, and muscle systems, which protect you from infectious microorganisms, your integumentary, immune, lymphatic, and endocrine systems do so.
Plasma proteins decrease in a person with liver failure. what effect does this have on capillary filtration/absorption?
The most significant factor contributing to widespread edema brought on by decreased plasma protein production in chronic liver disease is hypoalbuminemia, which manifests in end-stage liver disease. It leads to the increase on capillary filtration/absorption .
The osmotic pressure in blood arteries is maintained in large part by plasma proteins, which are also crucial carriers of several chemicals, including hormones. Blood pressure is the main factor influencing Glomerular filtration rate (GFR), which is countered by Bowman's capsule fluid pressure and colloid osmotic pressure brought on by plasma proteins.
The plasma has a lower than usual colloid osmotic pressure because there are less plasma proteins present. GFR rises when there is less colloid osmotic pressure working against it.
To learn more about Glomerular filtration rate (GFR) click here
brainly.com/question/27457237
#SPJ4
Which lobe of the brain is associated with personality and intellectual functioning?
When the resident microbiota prevents the establishment of a pathogen, it is called _______.
Microbial antagonism is the inhibition of pathogens growth by antagonist microbiota. When the resident microbiota prevents the establishment of a pathogen, it is called Microbial antagonism.
What are antagonist microbiota?
Antagonist microbiota are the organisms, like bacteria or fungi, capable of acting as a biological control to avoid other pathogenic agents' establishment.
These organisms share three characteristics,
a) capability to quickly colonize a new surface and effectively persist on it
b) better ability than the pathogen to get nutrients
c) the capability of surviving under different environmental conditions.
These antagonists are
genetically stable, their nutritious requirements are not demanding, they are capable of surviving under adverse environmental conditions, they have a high reproductive capability, and are not pathogenic to their host.
The mechanisms these antagonists use to inhibit the pathogen growth and establishment are among others, antibiosis, competition for resources, lytic enzyme production, and parasitism.
When the resident microbiota prevents the establishment of a pathogen, it is called _microbial antagonism_.
You can learn more about microbial antagonism at
https://brainly.com/question/13955083
https://brainly.com/question/14637762
https://brainly.com/question/21799278
#SPJ1
Which component of amino acids accounts for the differences in their properties?
The Alkyl group (R) is a component of amino acids accounts for the differences in their properties.
An amino acid contains an Amino group, Carboxyl group, H atom and an Alkyl group. Amino group, Carboxyl group and H atom are common for all amino acids. Alkyl group(R) is unique for every Amino acid. It differs from an amino acid to other amino acid.
This provides unique property to every protein structure as well since amino acids make a polymer of proteins. The alkyl group in amino acid can be Carbon containing, Ring containing, Amino group or a carboxyl group as well.
If an amino group is added in place of an alkyl group or with an alkyl group then the amino acid becomes basic in nature.
Similarly, if carboxyl group added in place of an alkyl group or with an alkyl group then the amino acid becomes acidic in nature.
Learn more about Amino acids here, https://brainly.com/question/15687833
#SPJ4
Administration of testosterone should lead to male mating behavior in an animal only if...
Choices:
The requisite sexually dimorphic nuclei are sufficiently masculinized
There are high levels of estrogen in the brain
There are low levels of estrogen in the brain
The requisite sexually dimorphic nuclei are sufficiently defeminized
Administration of testosterone should lead to male mating behavior in an animal only if The requisite sexually dimorphic nuclei are sufficiently masculinized.
The main sex hormone and anabolic steroid in guys is testosterone. In humans, testosterone is essential for the growth of the testes and prostate, as well as for the promotion of secondary sexual traits including increased bone and muscle mass and the development of body hair. Through territorial aggression, wooing rituals, and mate-guarding behavior, high testosterone levels have been found to improve mating effort.
The preoptic area of the hypothalamus, where the sexually dimorphic nucleus -POA is situated, regulates male sexual behavior. Snake, reptile, avian, rodent, ungulate, and primate male-typical copulatory activity is reduced by large lesions in the preoptic region.
To know more about testosterone refer to: https://brainly.com/question/23948458
#SPJ1
The inferior lateral walls and part of the floor of the cranium are formed by the?
The ethmoid bone shapes the floor of the skull as well as its inferior lateral walls.
Where is an ethmoid bone found?
The upper nasal cavity's roof and lateral walls, the top part of the nostril septum, and a piece of the orbit's medial wall are all formed by the ethmoid bone, a single midline bone. The ethmoid also contributes to the anterior cranial cavity's floor on the inside of the skull.
The anterior cranial fossa's floor is formed by the ethmoid bone, which occupies a tiny space in the cranial cavity near the midline. This area also serves as the nasal cavity's slender roof. The cribriform plates and crista galli make up this section of the ethmoid bone.
Learn more about ethmoid bone here:
https://brainly.com/question/13086628
#SPJ4
Which relatively rare type of neuron has two processes extending from opposite sides of the cell body?
Bipolar neuron has two processes extending from opposite sides of the cell body.
Typically, neurons consist of a cell body and one or more extensions. Dendrites (short extensions with ramifications) and axons are the two forms of extension (just one extension of varying length depending on the cells).
Two processes, oppositely extending from the cell body's ends, are present in bipolar cells. One is the dendrite, the other the axon. Bipolar neurons are not common. They are sensory neurons that can be found in the vestibulocochlear nerve's ganglia, olfactory epithelium, and retina.
Therefore, Bipolar neuron has two processes extending from opposite sides of the cell body.
Learn more about neurons here:
https://brainly.com/question/24217914
#SPJ4
