Difference threshold refers to the just-noticeable difference between two stimuli (Option D). This difference represents the minimum level of stimulation that can be detected by an individual at least half the time.
An absolute threshold can be defined as the lowest level of a stimulus which can be detected by a person at least half the time.
In psychology, an absolute threshold is defined as the minimal amount of energy required to achieve the stimulation of the sensory receptors.
Stimuli from the surrounding environment include touch, light, sound, etc.
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Which statement about cystic fibrosis is true?
A.) Cystic fibrosis is caused by a deletion of one codon in the DNA molecule.
B.) Cystic fibrosis affects a person's ability to make normal red blood cells.
C.) Carriers have an advantage over people who do not have the cystic fibrosis mutation.
D.) Cystic fibrosis is caused by a mutation in which a dominant allele replaces a recessive allele.
Answer:D
Explanation:
It only make sense.
what is the material salad spinner
Answer: its made of plastic
Explanation:
Answer:
salad spinners are usually made from plastic
when did hans and zacharias janssen contribute to the cell theory
please helpppp
Drag the tiles to the correct boxes to complete the pairs.
What is the function of each lymph organ?
Explanation:
The main role of the lymphatic system is the transport of cells of the immune system during the activation of immunity, lipids in the form of lipoproteins, as well as the introduction into the systemic circulation of various objects (small and large molecules, liquids, infectious agents, etc.), packed in delivery vehicles - exosomes and vesicles
The main role of the lymphatic system is the transport of cells of the immune system during the activation of immunity, lipids in the form of lipoproteins.
What is lipoprotein?Particles called lipoproteins are comprised of protein and fat (lipids). They deliver cholesterol to your cells through your bloodstream.
High-density lipoprotein, or "good" cholesterol, and low-density lipoprotein, or "bad" cholesterol, are the two main categories of lipoproteins.
LDL comes in the form of lipoprotein. These lipoproteins transport cholesterol to the artery cells. High levels of LDL particles can cause cholesterol to accumulate in your arteries and create blockages known as plaques. The term "hardening of the arteries" or atherosclerosis refers to this condition.
Therefore, The main role of the lymphatic system is the transport of cells of the immune system during the activation of immunity, lipids in the form of lipoproteins.
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NO G00GLE PLEASE <3
Define cell
Answer:
Cell is the fundamental intergral unit of life. It give rise to an organism, it's specialization allows complex or simple functions to occur within a body of an organism.
What are latent prints?
Explanation:
Latent prints are formed when the body’s natural oils and sweat on the skin are deposited onto another surface. For example if you put your thumb on your glass you will see that the oils will put your fingerprint there
WHAT IS MEDIAN??????????????
Answer:
The middle value in a set of numbers arranged in increasing order. If there is an even number of values, then median is the average of the middle two values.
In anatomy (as your question is marked Biology), the median is situated in the middle; central, intermediate.
Directions: determine if the statement is true or false. If false, correct the statement to be true.
1. true
2. true
3. false
4. false
5. true
Explanation:
maaf kalau salah
explain how the body establishes a pressure gradient for fluid flow.
Answer: refer to, uofmhealth.org/health-library/tx4097abc
Explanation:
you should find your answer there
A student observed several cell layers positioned on top of one another in the high-power field of view of a compound light microscope. To observe the details of only one of these cell layers, the student should
Answer:
rotate the fine adjustment
Poultry products are a likely source of infection by:
Poultry products are a likely source of infection by Salmonella enterica
which causes typhoid.
Most farm animals such as pigs, cattle and poultry have been found to be
infected with Salmonella enterica as a result of their contact and exposure
to a dirty environment.
This is why it is advisable to apply much heat on poultry products such as
eggs to kill the micro-organism.
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What do adenine, ctyosine, guanine, thymine, and uracil have in common
Adenine and guanine have a fused-ring skeletal structure derived of purine, hence they are called purine bases. ... Similarly, the simple-ring structure of cytosine, uracil, and thymine is derived of pyrimidine, so those three bases are called the pyrimidine bases.
The word matrix can be used to describe things shaped In a pattern of lines and spaces. How does this relate to a mitochondrion?
The definition of the word matrix can be applied to the organelle known as mitochondria given that the mitochondria have what is known as a "mitochondrial matrix".
The mitochondria are amongst the most important organelle of a cell. They are responsible for the production of energy molecules in the form of ATP. The basic structure of mitochondria consist of:
Outer membraneIntermembrane spaceInner membrane MatrixGranulesand contain even more elements within.
The inner membrane of the mitochondria surrounds the matrix, giving it the form of a pattern of lines that bend and curve, leaving spaces in between. The similarity between this shape and the definition that is given of the word "matrix", explains why this structure may have been given the name of the mitochondrial matrix.
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Help with 1 and 2 plz make sure it’s right will mark brainiest
Please help me! " Section 1 Biodiversity (continued)
Main Idea
Details
Summarize why species should be preserved as a possible source
of useful genes.
The Importance
of Biodiversity
I found this information
on page
Medicine
Agriculture
Organisms that
might have value
include
These organisms
someday might be
useful as
Identify resources and services that a healthy biosphere provides to
people.
Services
Resources
1.
1.
2.
2.
3.
3.
4.
4.
Organize how humans are dependent on plants and animals by
describing two ways that you use products of each.
Products of Animals
Products of Plants
Copyright © Glencoe/McGraw-Hill, a division of The McGraw Hill Companies, Inc.
SUMMARIZE
Explain how the health of the biosphere impacts the health of people.
Answer:Plants and animals maintain the health of an ecosystem. When a species becomes endangered, it's a sign that an ecosystem is out of balance. ... The conservation of endangered species, and restoring balance to the world's ecosystems, is vital for humans, too.
Explanation:
How do cells make energy?
Through photosynthesis.
Through the breakdown of macromolecules.
Through exercise.
Through the production of methane.
Answer:
through the break down of macromolecules
since dna is replicated semiconservatively, what does each new daughter cell receive from the parent cell after replication and mitosis?
Answer:
the exact same organelles from the parent
Explanation:
Explain why the shape of an enzyme is important to its function.
Answer:
The shape of an enzyme is very important because it has a direct effect on how it catalyzes a reaction.
Each enzyme is folded into a shape that allows the substrate(s) to fit into the active site, which is where the reaction occours. Other substrates do not fit into this active site. This is why each enzyme can only catalyse a specific reaction
Answer:
hey
how is the weather that side
14. What are the two compartments of the forearm and how do they differ?
Answer:
The anterior compartment is known as the flexor compartment since the muscles primarily function to flex the wrist and digits. The anterior compartment consists of a deep and superficial layer. The superficial compartment contains the pronator teres, the flexor carpi radialis, and the flexor carpi ulnaris.
A change in pH has the greatest impact on which life proces
Answer:
Aquatic Organisms
If the pH of water is too high or too low, the aquatic organisms living within it will die. pH can also affect the solubility and toxicity of chemicals and heavy metals in the water ¹². The majority of aquatic creatures prefer a pH range of 6.5-9.0, though some can live in water with pH levels outside of this range.
Explanation:
Adding more OH- ions increases the pH, making the substance more basic. Increasing the pH will increase the number of OH- ions, so the equilibrium will shift to the left. Decreasing the pH will increase the number of H3 O+ ions; they'll ''use up'' the OH- ions, thus shifting the equilibrium to the right.
In 3–5 sentences, explain how genetic modification helps provide food for a growing population.
Given what we know about genetics, we can confirm that genetic modification helps provide food for a growing population by allowing us to create faster-growing crops that yield more.
What is genetic modification and how can we use it?Genetic modification, in simple terms, is when a scientist affects the genetic code of an organism to bend it towards our specific desires. This can be very dangerous and is very controversial in some cases. However, it can also be very beneficial in terms of food supplies. Gene modification can be used to create crops that will take less time to grow, and grow into bigger foods, allowing us to feed more people.Therefore, we can confirm that gene modification helps provide food for a growing population by forcing crops to be more efficient and feed more people.
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why is it advantageous for cells to switch to anaerobic fermentation in the absence of oxygen
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How cells extract energy from glucose in the absence of oxygen. In yeast, anaerobic reactions produce alcohol, while in your muscles, they form lactic acid.
it is advantageous for cells to switch to anaerobic fermentation in the absence of oxygen because Anaerobic processes in yeast produce alcohol, whereas they produce lactic acid in your muscles.
What is anaerobic fermentation?
Generally, Once the oxygen is removed from the fermentation vessel and replaced with N2, CO2, etc of the fermentation, anaerobic fermentation begins.
In conclusion, Anaerobic processes in yeast produce alcohol, whereas they produce lactic acid in your muscles.
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Help i think its either C or B but i don't know please correct me if i'm wrong.
Why is the region bordering the Pacific plate called the "Ring of Fire"?
A) The islands within the Pacific Ocean form a circle from volcanic activity.
B) The Pacific Ocean is a region where climate change has resulted in the highest temperatures.
C)The boundary along the Pacific plate contains most of the active volcanoes on Earth.
D) The Pacific plate forms a ring where wildfires are likely to occur.
Answer:
B
Explanation:
The answer is B
In basidiomycete fungi, where specifically do nuclei from parents combine to make offspring spores
In basidiomycete fungi, the nuclei from parents combine in the BASIDIA to make offspring spores. Basidia are microscopic structures but they are generally produced on large fructifications known as fruit bodies.
A basidium is a sporangium localized on the hymenophore of the fruiting bodies in basidiomycete fungi.
In basidia, the nuclei of two parental strains fuse by karyogamy and then divide to reproduce basidiospores.
A basidium generally contains four sexual spores known as basidiospores.
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list three ways that organisms use energy
Answer + Explanation:
Organisms use energy to survive, grow, respond to stimuli, reproduce, and for every type of biological process. The potential energy stored in molecules can be converted to chemical energy, which can ultimately be converted to kinetic energy, enabling an organism to move.
hans and zacharias janssen contribution to cell theory
Answer:
1590’s
What year did Hans and Zacharias Janssen contribute to the cell theory? Hans and Zacharias Janssen are known for inventing the compound optical microscope. They made it in the 1590’s. This contributed to “The Cell Theory” by making it easier and more practical whilst observing cells.
Explanation:
Cell theory states that all biological organisms are made up of cells, which is the structural and functional unit of life.
Scientists Hans and Zacharias Janssen invented the compound microscope that played a vital role in observing cellular functions.
Hans and Zacharias Jansen invented the compound microscope, which consisted of the eyepiece and an objective lens.
The scientists discovered the compound microscope in the late 16th century, which then helped many scientists to magnify and observe the microscopic structures.
Thus, the Janssens discovered the compound microscope.
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discuss the functions and deficiency symptoms of phosphorus
Answer:
Functions of phosphorus in the body,
i) Formation of bones and teeth. It's a component necessary for forming strong bones and teeth in the body.
ii) It's important in helping to make protein in the body for growth. Since many proteins in the body are phosphorylated for regulating their functions.
iii) Activation of enzymes. This done through phosphorylation.
iv) Gene transcription. It provides structural importance to the gene and protein binding is by the presence of phosphorus.
Deficiency of phosphorus in the body;
i) Weak and fragile bones.
ii) Bone pain.
iii) Fragile teeth.
iv) Stiff joints.
how does plant mitosis accommodate a rigid inflexible cell wall
Answer:
mitosis animal y vegetal son dos tipos de divisiones nucleares reproductivas en animales y plantas, respectivamente. Durante la mitosis, la cantidad de material genético permanece igual. Por lo tanto, aumenta el número de células en el cuerpo durante el crecimiento, la reparación y la regeneración. La mitosis ocurre en cuatro pasos principales; Profase, metafase, anafase y telofase. los diferencia principal Entre la mitosis animal y la mitosis vegetal es que el huso mitótico en la mitosis animal se forma con la ayuda de dos centriolos, mientras que el huso mitótico en la mitosis vegetal se forma sin ningún centríolo. La mitosis es seguida por citocinesis
Explanation:mira
the glenoid fossa is rimmed by the fibrocartilaginous
Answer:
glenoid labrum.
Explanation:
The glenoid fossa is rimmed by the fibrocartilaginous
The four main groups of macromolecules are carbohydrates, lipids, proteins. Identify each type of macromolecule based on its monomer.
Answer:
1) GLUCOSE is the monomer for CARBOHYDRATES
2) FATTY ACID & GLYCEROL is the monomer for LIPIDS
3) NUCLEOTIDE is the monomer for NUCLEIC ACIDS
4) AMINO ACID is the monomer for PROTEINS
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