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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One of the most common plants in Atlantic salt marshes is cordgrass. periwinkle snails cling to the top of tall cord grass is during high tide. The tall cord grass is provide protection from the snails predators such as blue crab. well the snails do not be directly on cordgrass the snails can damage the cord grass when they grays and algae and fungi that grow on the grasses. if the snail populations grow too large they can decrease cord grass growth.
Cordgrass is a biotic factor for the snails because it is a living source of protection in the Atlantic salt marshes for the snails. Hence option B is correct.
Biotic factors - The living components or the living things that are present in the ecosystem that shapes the environment are known as biotic factors. Examples are plants, bacteria, algae, birds, fishes etc.
A ecosystem runs through the interaction of biotic and abiotic component. Biotic supplements acts as a fuel that supports the bacterial growth.
Periwinkle snails graze on the top of the cordgrasses to escape from their predators blue crab. They graze on the fungi and algae that is inhabitant on top of the grass, they do not feed directly on the cordgrass
While grazing they actually damage the cordgrass by spreading the fungal infection.
Hence, option B is Cordgrass is a biotic factor for the snails because it is a living source of protection in the Atlantic salt marshes for the snails is correct.
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The correct question is :
One of the most common plants in Atlantic salt marshes is cordgrass. Periwinkle snails cling to the top of tall cordgrasses during high tide. The tall cordgrasses provide protection from the snails’ predators, such as the blue crab. While the snails do not feed directly on the cordgrass, the snails can damage the cordgrass when they graze on algae and fungi that grow on the grasses. If the snail population grows too large, it can decrease cordgrass growth.
Question
Based on the passage, which of the following describes the ecological role that cordgrass serves for the snails?
Responses
A. Cordgrass is a biotic factor for the snails because it is the snails’ main food source.
B. Cordgrass is a biotic factor for the snails because it is a living source of protection in the Atlantic salt marshes for the snails.
C. Cordgrass is an abiotic factor for the snails because it provides habitat for the snails and crabs.
D. Cordgrass is an abiotic factor for the snails because it produces algae and fungi for the snails.
Which is an example of a monosaccharide?
Cellulose,starch, sucrose, glucose
Answer:
Glucose, fructose, sucrose, galactose, etc.
Explanation:
Glucose, fructose, sucrose, galactose etc., are the monosaccharides.
Answer:
Glucose
Explanation:
Glucose is a monosaccharide because monosaccharides are simple sugars that are the building blocks for the more complex forms of sugars, or carbohydrates. Glucose is a monosaccharide, meaning one sugar.
Tip: If it ends in -ose, it's typically the name of a sugar.
Which describes the relationship between the frequency wave length and speed of a wave is a wave travels through different media
No links
Answer:
a
Explanation:
as speed changes wavelength changes but frequency remain constant
A group of scientists is studying a certain species of mouse. Previous genetic analysis has shown that fur color in this species is controlled by a single gene that has two alleles: a dominant allele (FF) that is associated with dark fur, and a recessive allele (ff) that is associated with light fur. The scientists collected data about a population of these mice to help determine the population's fur color allele frequencies. They found that out of 952 mice in the population, 238 mice had light fur. Assuming that the population is in Hardy-Weinberg equilibrium, which of the following is the number of mice in the population that have the genotype FfF, f?
50
238
476
952
Answer:
476
Explanation:
A biology class in Virginia conducted a survey of the plant species found on their school grounds. They found several plants that they didn’t recognize. What resources would be most helpful to the class in identifying the plants and determining if they were introduced as exotic species?
This is a multiple choice
1). Virginia newspaper and science journals
2). Biology textbooks and the encyclopedia
3). Virginia native species checklists and plant identification keys
Can someone tell me the answer and explain how you got it please?
Answer:
c
Explanation:
I would say C because then you can identify if it was introduced as an exotic species if it is not native. Then you will also be able to identify what type of plant it is with the key.
ANSWER ASAP!
Discuss the unique properties of water. (Polar, Hydrogen bonds, Cohesion, Adhesion)
Answer:
Water has cohesive and adhesive properties.
Water molecules have strong cohesive forces due to their ability to form hydrogen bonds with one another. Cohesive forces are responsible for surface tension, the tendency of a liquid's surface to resist rupture when placed under tension or stress.
Adhesion and cohesion are important water properties that affects how water works everywhere, from plant leaves to your own body. ... Cohesion: Water is attracted to water, and Adhesion: Water is attracted to other substances.
Answer & Explanation:
The difference in electronegativity between oxygen and hydrogen atoms creates partial negative and positive charges, respectively, on the atoms.
Water molecules attract or are attracted to other polar molecules.
Molecules that do not dissolve in water are known as hydrophobic (water fearing) molecules.
Because of its extensive hydrogen bonding, water (H2O) is liquid over a far greater range of temperatures that would be expected for a molecule of its size. Water is also a good solvent for ionic compounds and many others because it readily forms hydrogen bonds with the solute.
Cohesion holds hydrogen bonds together to create surface tension on water.
Since water is attracted to other molecules, adhesive forces pull the water toward other molecules.
Water is transported in plants through both cohesive and adhesive forces; these forces pull water and the dissolved minerals from the roots to the leaves and other parts of the plant.
Key Terms:
hydrogen bonds: A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
adhesion: The ability of a substance to stick to an unlike substance; attraction between unlike molecules
cohesion: Various intermolecular forces that hold solids and liquids together; attraction between like molecules
hydrophilic: having an affinity for water; able to absorb, or be wetted by water
hydrophobic: lacking an affinity for water; unable to absorb, or be wetted by water
polarity: The intermolecular forces between the slightly positively-charged end of one molecule to the negative end of another or the same molecule.
an area that contains certain type of plants of which is suited to the climate of that area is called .. A.exotic B.xerophytes C.biome D.plantation
Answer:
D
Explanation:
D is the answer!!!!!!!!!!!!!!!!!
What happens to this enzyme when the pH rises above 12?
I'll give you brainliest if you answer correctly
Explain why a person can survive if they exclusively eating a protein diet. What are the hazards if any?
Answer:
Risks of high protein diet
Explanation:
Some high-protein diets include foods such as red meat and full-fat dairy products, which may increase your risk of heart disease. A high-protein diet may worsen kidney function in people with kidney disease because your body may have trouble eliminating all the waste products of protein metabolism.
which statement is true about cell differentiation?
Answer:
It causes cells to change and specialize.
Explanation:
hope this helps you if it does please mark brainiest
Help me pls. ‼️‼️‼️‼️‼️In your own words explain the concept of sea floor spreading
Answer:
No biologist but this is what my teacher told the class during the weel
Explanation:
Organisms would expand due to the movement of tectonic plates while bacteria would settle there
what organelle converts sunlight to chemical energy
Answer: Chloroplasts
Explanation: Chloroplasts turn light energy from the sun to sugar.
the microorgansims which contains chlorophyll
How to use bacteria as a treatment for sewage waste
Answer:
Aerobic bacteria can be used to use the available oxygen in the water to degrade the pollutants in the waste and convert it into energy it can use for its metabolic processes.
double-stranded dna looks like a ladder that has been twisted into a helix, or spiral. the side supports of the ladder are:
6. The thick rigid layer that surrounds plant cells and provides support and structure is called the:
(a) Nucleus
(b)Mitochondria
(c) Cell wall
(d)Chloroplast
Answer:
C. Cell wall
Explanation:
The cell wall gives the cell its structure and protection. It also provides support to the cell by making sure nothing happens to it, and it is considered the outer layer of the cell and the layer is very thick and rigid.
What helps weaken atp bonds so energy can be released and then later help reform them?
Enzymes help weaken these bonds so energy can be released and then later help reform them.
that's the answer
ADP (adenosine diphosphate) is formed when these high-energy connections between the phosphate groups at the end are broken, releasing energy for the cells to utilize.
How is energy stored in ATP?One phosphate group is left on its own, these powerful associations may be broken and rebuilt with the aid of enzymes.
When a third phosphate is added to the ADP molecule, reforming ATP, water that was broken down into its hydrogen atom and hydroxyl group during ATP hydrolysis is recovered.
Energy must be introduced into the system to regenerate ATP, ADP develops and energy is released for the cells to utilize when these connections are broken.
Therefore, ATP has the capacity to store and transmit chemical energy, high-energy bonds are used to link the final two phosphate groups.
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What is the percentage of recorded pulse rate (62-69)
Answer:
A normal resting heart rate can range anywhere from 40 to 100 beats per minute. Below is a chart relating resting heart rate and fitness level.
Explanation:
Answer:
40 to 100 beats per minute
Explanation:
Health class in college is how I know
which organ system is responsible for protection against injury, infection, and dehydration?
Answer:
The integumentary system protects the body's internal living tissues and organs, protects against invasion by infectious organism, and protects the.body from dehydration.
Explanation:
PLZ HELPPPP WILL PICH BRAINLIEST
Which of the following is not a reason the nitrogen cycle is important?
Nitrogen gas gets converted to nitrates for plants to use
Nitrogen is needed to synthesize proteins
Nitrogen provides energy for organisms
Nitrogen is needed to synthesize DNA
Nitrogen gas gets converted to nitrates for plants to use
Hope this helped you- have a good day bro cya)
Tại sao con người chúng ta lại sốt nhiều lần như vậy?
Answer:
Fever is an elevated temperature of the human body that is substantially beyond the normal range. Normal body temperature fluctuates daily from about one degree below 98.6 degrees Fahrenheit to one degree above that number. Lower body temperatures usually occur before dawn; higher temperatures in the afternoon.
Body temperature also varies slightly depending on where on the human body it is measured. Rectal (internal) temperature tends normally to be higher than skin (surface) temperature. Oral and armpit temperatures can approximate actual body temperature and are more convenient to measure.
How does cellular differentiation benefit complex organisms?
Answer:
This is because of the fact that it causes changes in size, shape, metabolic activities as well as signal responsiveness of cells.
Explanation:
Answer:
Cellular differentiation is beneficial and important for complex organisms.
Explanation:
Cellular differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. Gene expression occurs because of certain signals in your body, both inside and outside of your cells.
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Answer:
post it again
Explanation:
Which of the following statements is not a characteristic of the prokaryotes.
Prokaryotes don't have a nucleus.
Prokaryotes have a cell wall.
All of the chemical processes take place in membrane bound organelles in the cytoplasm.
Answer:
All the chemical processes take place in membrane bound organelles in the cytoplasm.
Explanation:
Use the process of elimination:
One of the main things that make a prokaryote is not having a nucleus, so that can be eliminated.
Looking at the structure of bacteria, they can have a cell wall, so this is eliminated.
Therefore, “all the chemical processes take place in membrane bound organelles in the cytoplasm” is incorrect.
Also, prokaryotes DO NOT have membrane bound organelles like mitochondria, chloroplasts, or a nucleus, so this statement would also be incorrect because of this.
Can someone please help me and not just answer for points
Answer:
it's the third answer because you separate the sequence every three letters
Give me 20 facts about the documentary Super Size Me 2
Answer:
Its about fast food. Its in America. Its also about how Americans are usually overweight. The main character is a guy. The logo is a guy eating chicken. Its also called: Holy chicken! The guy eats fast food a lot. Morgan is 50. He has dirty blonde hair.
Explanation:
Thats all I have
muscle cells are said to have what characteristic because they can respond to stimulation from the nervous system?
Answer:
Muscle cells are excitable; they respond to a stimulus. They are contractile, meaning they can shorten and generate a pulling force. When attached between two movable objects, in other words, bones, contractions of the muscles cause the bones to move.
Explanation:
Hope this helps.
are substances made of one kind of atom.
Answer:
Substances made up of multiple types of atoms are called compounds.
The atoms themselves would be referred to as carbon atoms, oxygen atoms, if singular
What was the optimum temperature for bromelain activities?
Why does the rate of somatic cell division differ?
Answer:
The cells divide in order to replace the old and damaged cells, and so that the body of the living being can grow
Explanation:
Answer:
The skin cells prevent germs from coming in our bodies. Skin cells are very easily removed, so it needs to reproduce faster. Every single person both young and old has new cells every second replacing the old and dead cells in your body.
explain : Changes in temperature and humidity: skin helps to regulate body temperature, control moisture loss and maintain the balance of fluids. Pressure, blows and abrasion: skin recognises pain and alerts us to danger. It acts as a barrier and shock absorber.