Answer:
Gravity, Electrostatic force, Magnetic force
Explanation:
A non-contact force is a force that is applied to an object by another object without contact. Gravity, electrostatic force, and magnetic force all don't need two objects to be touching in order for them to work.
On the other hand, an example of a contact force is friction, because it can only occur if two objects are touching. If you want to tell the difference between a contact and non-contact force, just ask yourself if it can occur if the two objects are not touching. If it can occur while two objects aren't touching, it is non-contact, and if it can't, it is contact.
All the options given describe a force that involves contact except for the force exerted by magnets. Thus, the correct option is C.
Magnetic force is the force exerted by magnets. It can be described as the effect exerted on a charged particle due to the magnetic field of the other particle.
It is a consequence of the electromagnetic force, which is caused due to the movement of electrically charged particles.
Two objects that are oppositely charged will have a magnetic force of attraction, whereas two objects that have the same charge will have a magnetic force of repulsion.
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Your question is incomplete. The full question probably might be:
Which of the following is an example of a non-contact force?
(a) The force exerted by us to lift a bucket
(b) push a stationary car
(c) The force exerted by magnets
(d) Force due to friction
Study the image.
What do the arrows at point 3 indicate?
A) Warm air is cooling quickly.
B) Cool air is above water.
C) Cool air is warming quickly.
D) Warm air is above land.
Answer:
The answer is C
Explanation:
Answer:
A
Explanation:
The warm air is sinking meaning that it's cooling down. Cooler air is denser that's why they sink while warmer air is less denser, it rises.
Which organism is an animal-like protist?
cilia
dinoflagellates
amoeba
truffle
5. A system of membranes and tubes that create
passages through which materials can pass? |
Answer:
paper or glass
Explanation:
for they use needles to get and they transfer it to paper for studying
Answer: paper
Explanation:
Organisms developed _________ that provided its own food source.
Answer:
autotrophic
Explanation:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals. Because autotrophs produce their own food, they are sometimes called producers. Plants are the most familiar type of autotroph, but there are many different kinds of autotrophic organisms.
Answer:
Explanation:
An autotroph is an organism that can produce its own food using light, water, carbon dioxide, or other chemicals.
Over various spans of time, human populations have increased, decreased, or remained the same, and at both global and local levels. Which statement best explains this observation?
A. Unlike other populations, the human population changes size because of specific choices of its members.
B. Unlike other populations, the human population has the ability to grow rapidly without limit.
C. Like other populations, the human population is affected by a variety of factors in the environment.
D. Like other populations, the human population increases and decreases in a cyclical pattern.
Answer:
Which statement best describes these explanations? ... 20) The time during imprinting when specific behaviors can be learned is ... E) maximizing the population size of the forager. E ... B) members of different populations have different nutritional requirements. ... B) humans cannot choose to change their social behavior.
Answer:
C.) Like other populations, the human population is affected by a variety of factors in the environment.
Explanation:
Yes
please help asap i will mark brainliest
Answer:
a
Explanation:
Which of the following characteristics of enzymes is NOT correct?
A)The substrate is the substance upon which the enzyme acts.
B)The induced-fit or lock and key model describes how enzymes work.
C)An enzyme is unchanged as a result of a reaction.
D)The efficiency of an enzyme is not affected by temperature.
The statement that represents an incorrect characteristic of enzymes is as follows;
The efficiency of an enzyme is not affected by temperature.Thus, the correct option for this question is D.
What are enzymes?Enzymes may be defined as the type of biocatalysts that significantly increase the rate of a chemical reaction without being changed in the overall process. It is thought that all cellular reactions and processes are mediated by enzymes.
Enzymes include a number of characteristics. Some of them are most of the enzymes are proteins. They are highly specific. They exhibit enormous catalytic power.
The substrate is the substance upon which the enzyme acts. The induced-fit or lock-and-key model describes how enzymes work. The temperature and pH directly affect the efficiency of an enzyme.
Therefore, the correct option for this question is D.
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Match these items.
1. kg measurement of area
2. cm2 measurement of mass
3. L measurement of volume
4. m measurement of length
Answer:
1. length is m (meters)
2. Mass is kg (kilograms)
3. area is cm^2
4.volume is L (liters)
How do you determine the amount of electrons and protons?
Answer:
The number of protons in the nucleus of an atom is equal to the atomic number
the number of electrons in a neutral atom is equal to the number of protons
Explanation:
Answer:
For both protons and electrons, you need to use the atomic number.
For followers of Confucianism, which statement is the most accurate?
*People are naturally selfish and evil.
*Virtue and education are essential.
*Good laws demand strong laws and government.
*Ideas must be controlled by the government.
Answer: I would say virtue and education are essential
Explanation: I read tales of Confucius
Answer:
B. Virtue and education are essential.
Explanation:
have a great day peeps :)
Which correctly lists three forms of frozen water?
O dew, frost, rain
O frost, hail, sleet
O hail, rain, sleet
Orain, dew, frost
Answer:
b
Explanation:
The option that correctly lists three forms of frozen water is "frost, hail, sleet". Therefore, option (B) is correct.
What is frozen water?Frost is created when water vapor condenses and freezes onto a surface, like the ground or a window.
Hail is produced when powerful updrafts in thunderstorms carry raindrops high enough that they freeze into ice, forming large balls of ice that fall to the ground. This process results in the formation of hail.
Sleet is created when raindrops pass through a layer of cold air close to the ground. This causes the raindrops to freeze into small ice pellets before they reach the ground's surface.
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Darwin's experiments are just one way to study phototropism. A student wants to investigate the effects of phototropism in bean plants. She places a light source directly above one plant, at a forty‐five degree angle to another, and at a ninety‐degree angle from the third.
What is her independent variable?
What is a hypothesis she might write for her experiment?
Answer:
Her independent variable is the light source and her hypothesis is what YOU think might happen
Answer:
The independent variable is what is being changed or altered in the experiment (light position), the dependant variable is what is altered or changed by the independent variable (plant).
Explanation:
Consider what is being changed in this experiment to investigate the effects? The plant itself is not changed by the experiment but the positioning of the light source is. That is your independent variable. The plant may change as a result of the independent variable but isn't being altered or changed as part of the method (dependent).
What is a hypothesis she might write?
Consider a hypothesis as a prediction. Researchers come up with their hypothesis based on the information they already know. So to write your hypothesis think about what you already know about phototropism. What do you think will happen to the plant in relation to the positioning of the lamp? Will the plant not move? Will it bend or move to face the lamp?
Hope this helps.
Give two names for a hydrogen atom with a missing electron
Answer:
Cation,anion
Explanation:
A beaker contains 0.64 L of water. What is the volume in milliliters?
0.64 L in milliliters is 640 milliliters.
HELP
Which bodily system is responsible for releasing growth and other hormones?
Answer:The endocrine system
Explanation:
The endocrine system includes all of the glands of the body and the hormones produced by those glands. The glands are controlled directly by stimulation from the nervous system as well as by chemical receptors in the blood and hormones produced by other glands
PLEASE HELP -- Imagine protein X, destined to span the plasma membrane. Assume that the mRNA carrying the genetic message for protein X has already been translated by ribosomes in a cell culture. If you fractionate the cells, in which fraction would you find protein X? Explain by describing its transit through the cell.
Answer:
Protein X would be ultimately present in the subcellular fraction containing membrane fragments
Explanation:
It is possible to trace the synthesis and transport of a membrane protein by the following steps:
1- The amino acids of the membrane protein are joined together in the ribosome to form a polypeptide chain (in this case, the protein X).
2- A signal sequence of the growing polypeptide produces the binding of the ribosome to the membrane of the endoplasmic reticulum (ER) and the insertion of this polypeptide chain into the ER.
3-The protein is released into a vesicle from the ER to be exported to the Golgi complex.
4- The membrane protein is transported by the Golgi complex to the cell membrane by the formation of a secretory vesicle that fuses with the plasma membrane, thus being finally embedded in the lipid bilayer.
Protein X should be present in the subcellular fraction that comprise of membrane fragments
The fraction that should be measured the protein X:
Here the synthesis should be traced and the membrane protein transport should be applied by using the following steps:
Here the amino acids of the membrane protein should be connected together so that the polypeptide chain should be created. A signal sequence with respect to the polypeptide should be grown that generated the ribosome binding. Now the protein should be relased into the vesicle. At last, the protein of the membrane should be transported to the cell membrane.Learn more about cell here: https://brainly.com/question/13250146
Vernon is using the diagram shown below to develop a model of photosynthesis. The letters A, B, and C each represent a reactant or product of the process.
In the light-dependent reactions, light strikes the oval thylakoids. Compound A enters the thylakoid, and compound B leaves it. In the light-independent reactions, compound C enters a cycle in the stroma, and sugars leave the cycle. ATP and NADPH cycle between the two sets of reactions.
Should water (H2O) be included in the model as a reactant or product? If so, how should it be included?
A. Yes, as reactant A.
B. Yes, as product B.
C. Yes, as reactant C.
D. No, it should not be included.
Photosynthesis is the process of preparing food in the presence of light, water, and carbon dioxide. Photosynthesis can be light-dependent or light-independent reactions.
The correct answer is:
Option A. Yes, as reactant A.
The mechanism can be explained as:
1. Light-dependent reactions convert light energy into chemical energy.
2. The light-dependent reactions require water and light to yield oxygen, hydrogen, and energy molecules.
3. The light is used to break down the molecule of water into oxygen and hydrogen when the light strikes the thylakoid.
4. The ATP is generated in the stroma of the thylakoid membrane. The excited electrons released during the splitting of water is utilized to produce high-energy molecule.
Thus, water molecule should be used as a reactant because it yields products.
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Please help! I am so confused, please just help me understand this thing! I'm desperate
Answer:
i dont even know
Explanation:
bc its to hard to understand
Which of the following changes demonstrates a chemical property? *
O A substance breaks in half
A substance combusts (burns)
O A hammer bounces off a substance
O A substance floats in water

Answer:
The correct answer is B. Combustion is a chemical change. When a substance is burned, it forms new substances. Therefore, combustibility is a chemical property because it can only be observed when a substance undergoes a chemical change.
Explanation:
Hope that helps!
Answer:
The answer would be "A substance combusts (burns)".
Explanation
All of the other options are basic physical changes that don't alter the substance on a molecular level, whereas burning a substance permanently changes the molecular makeup.
1. The first living organism in a food chain is
a) producers
b) primary consumers
c) heterotroph
d) chemosynthesizer
2. The second living organism in a food chain is generally...
a) herbivore
b) carnivore
c) detrivore
d) a photoautotroph
3. Plants use nitrogen to grow and are generally helped by cycling N from the air to the land by bacteria in a process called...
a) nitrogen fixation
b) denitrification
c) decomposition
d) emmigration
Answer:
1-a 2-a 3-a
1. The first living organism in a food chain is
a) producers
b) primary consumers
c) heterotroph
d) chemosynthesizer
2. The second living organism in a food chain is generally...
a) herbivore
b) carnivore
c) detrivore
d) a photoautotroph
3. Plants use nitrogen to grow and are generally helped by cycling N from the air to the land by bacteria in a process called...
a) nitrogen fixation
b) denitrification
c) decomposition
d) emmigration
any bodily movement produce by skeletal muscles that requires energy expenditure
Answer:
Physical activity is defined as any bodily movement produced by skeletal muscles that results in energy expenditure. The energy expenditure can be measured in kilocalories.
I hope this helps
I NEED THIS ASAP PLZ / I WILL NAME YOU BRAINLIEST PLEASEEE!! What might happen to the Burmese python population over time as it reaches or surpasses its carrying capacity in South Florida? How might other organisms in the ecosystem be affected? What might happen to the population sizes of various types of organisms in the Everglades?
Answer:
As the Burmese python surpasses its carrying capacity in South Florida, the overpopulation of it leaves less resources for each python, and other organisms. Predators may have way too many pythons, and not be able to keep the balance, and prey might be over hunted or eaten. The population sizes may decrease due to the over-population of the pythons.
Explanation:
If there are ever too many of any ORGANISM in a ecosystem, the balance is sure to be ruined.
Hope this helps!
During transcription what type of molecule is formed?
A. RNA
B. mRNA
C. tRNA
D. rRNA
Transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). DNA safely and stably stores genetic material in the nuclei of cells as a reference, or template
Answer:
The answer is B mRNA
Explanation:
Describe how an enzyme’s structure affects its function:
Answer:
Most enzymes are proteins and therefore their function is specific to their structure. Enzymes function as a catalyst to increase the rate of virtually all the chemical reactions that take place in a living system
Explanation:
Cardiac muscular tissue and its function
Answer:
Yes That Is True!
Explanation:
Answer:
Cardiac muscle tissue works to keep your heart pumping through involuntary movements. This is one feature that differentiates it from skeletal muscle tissue, which you can control. It does this through specialized cells called pacemaker cells. These control the contractions of your heart.
I hope it help you,
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The__ links the brain to the rest of the body.
A. Heart
B. Brain
C. Spinal cord
D. Nervous system
Answer:
The brain
Explanation:
The brain stem connects the brain with the spinal cord.
Answer:
C - the spinal cord
Explanation:
the cord is connected to the brain and travles down the body connecting itself
Urine is produced by the body to rid itself of wastes the normal chemical composition of urine is mostly water but it also includes nitrogenous molecules creatine and other metabolic waste units urine is a solution that can be greater than 95% of water what property of water makes watee so helpful in ridding the body of waste
A.water cohesive forces create surface tension upon its surface
B. Water is a versatile solvent
C. Water is expands upon freezing
D.water has a high specific heat
ANSWER FAST PLSSS
Answer:
B. Water is a versatile solvent
Explanation:
Water is said to possess certain properties that gives it its unique attribute. These properties make it a vital component of life as it makes certain phenomena possible. According to this question, water, which makes up majority of urine content, aids the excretion of certain wastes such as nitrogenous molecules from the body.
Water is able to aid in this excretory function due to its VERSATILITY AS A SOLVENT. Water is said to dissolve more substances than any other solvent. This allows it to transport dissolved substances including waste products out of the body.
What does the plant use the glucose for
Answer:
energy to live should be right
What is the theory of natural selection, and why does it occur in an organism?
Answer:
Natural Selection is survival of the fittest aka Darwinism. It basically states that the strongest survive and the weakest don't. Maybe it's through food shortages, bad weather, or predators. It occurs in an organism for population control. If there is too big of a population, then there will be a recourse drought and natural selection will do its thing again.
can you help me with this??
Answer:
Its between the 3rd and fourth but i think its the 3rd
Explanation: