Answer:
1-A ring-shaped muscle that relaxes or tightens to open or close a passage or opening in the body.
2-Sphincters are specialized muscles that are located at the upper esophagus (upper esophageal sphincter (UES) and the gastroesophageal junction
Explanation:
Why do waves move faster at higher temperatures and in a solid phase?
O There is more energy and the particles are farther apart.
O There is less energy and the particles are closer together.
O There is less energy and the particles are farther apart.
There is more energy and the particles are closer together.
Answer:
B
Explanation:I took the test if u need help follow me
Waves move faster in higher temperature and in solid phase because there is more energy and the particles are closer together.
What is meant by intermolecular force ?Intermolecular force is defined as the force of attraction experienced between the neighboring molecules in the same state.
Here,
During higher temperature and when in a solid phase, the waves exhibit movements very faster than in other phases.
This is because, when the temperature of the system is increased, the energy of the molecules in the system will be increased to a higher level. This energy formation is in the form of kinetic energy of the molecules.
Molecules in the solid phase have a greater intermolecular force of attraction with their neighboring molecules. Therefore, the molecules in the system will be more closer to each other.
As the kinetic energy of the molecules in the system increases, the molecules will start vibrating. These vibrating molecules induces the vibration to their neighboring particles, since they are closer together.
As a result, more and more highly energetic molecules are set to vibrate, which causes the wave to move faster in the system.
Hence,
Waves move faster in higher temperature and in solid phase because there is more energy and the particles are closer together.
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Identify the following carbohydrate
A. Monosaccharide
B. Disaccharide
C. Polysaccharide
D. None of the above
Answer:
Its A.
Explanation:
btw i love ur luffy pfp
PLEASE HELP!!! Answer needed!!
Answer:
it's "spindle"
Explanation:
hope this helps ya!! :))
How would your body be affected if your pituitary gland did not work properly
Answer:
For example, if the pituitary gland does not produce enough growth hormone in a child, they may have a permanently short stature. If it doesn't produce enough follicle-stimulating hormone or luteinizing hormone, it might cause problems with sexual function, menstruation, and fertility.
Explanation:
Answer:
c
Explanation:
i need the ansewer to this but i scammed these points any way
Which statement describes carbohydrates?
Carbohydrates store and transmit an organism’s genetic information.
Carbohydrates provide energy to organisms.
Carbohydrates help with an organism’s tissue growth and repair.
Carbohydrates provide an organism with long-term energy storage.
What can you conclude about the structure of mitochondria?
Answer:
Mitochondria are membrane-bound cell organelles (mitochondrion, singular) that generate most of the chemical energy needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule called adenosine triphosphate
Explanation:
hope that helped ;/
Answer:
Mitochondria are shaped perfectly to maximize their productivity. They are made of two membranes. The outer membrane covers the organelle and contains it like a skin. The inner membrane folds over many times and creates layered structures called cristae
PLZ HELP WILL GIVE BRAINLIEST
Mitosis is responsible for creating what cells in organisms?
Group of answer choices
All cells in sexually reproducing plants
Only skin and hair cells
All cells, except sex cells
Only sex cells, known as gametes
Answer:
All cells except sex cells
Explanation:
Provide an
example of how energy from the sun affects patterns of movement in the ocean.
Answer:
The sun's heat evaporates some water and raises the concentration of the salt, causing the water to be more dense. Or it could be the gravitational pull of the sun from Earth, just like how the moon affects tides. I hope this helps you :)
Explanation:
What terms means that molecules are evenly or equally distributed on both sides of a cell membrane?
Answer:
the cell wall!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Explanation:
it coversssssssssssssssssssss the cell and protects it
Fred notices that all of his friend's brothers and sisters have dark hair. What is the most likely explanation for this characteristic?
O They have identical genes.
O They eat only healthy foods.
O They live in the same environment.
O They have parents with dark hair.
Answer:
They have identical genes.
Explanation:
Hope it helps
What will be the approximate temperature of the liver if a victim dies at 3:15 pm and is found at 4:15 pm on the same day? (Assume ambient temperatures are normal)
98.6
97.2
95.8
99.5
Answer:
c
Explanation:
I think its c. sorry if im wrong
The approximate temperature of the liver if a victim dies at 3:15 pm and is found at 4:15 pm on the same day is 95.8. So, the correct option is C.
What do you mean by Ambient temperature?Ambient temperature may be defined as the air temperature of any object or environment where equipment is stored.
After the death of a victim, the temperature of the liver is found lower than that of the normal temperature of the body. Because as the individual dies, the speed of blood movement decreases with respect to time.
Therefore, The approximate temperature of the liver if a victim dies at 3:15 pm and is found at 4:15 pm on the same day is 95.8.
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which is a non-renewable resource that is used to generate electrical energy?
A.water
B.coal
C.sunlight
D.ores
Answer:
B) Coal
Explanation:
B) Coal
It is coal, bc coal is a non-renewable resource
State, in terms of the number of subatomic particles, one similarity and one difference between the atoms of these isotopes of element X.
Answer:
The atomic number is determined by the number of protons in the atom.
Neutrons can vary the mass of atoms of the same element; atoms of the same element with the different atomic masses are called isotopes.
Electrons do not contribute a meaningful amount of mass to an atom, and only vary the charge of the atom. A charge atom is an ion.
Explanation:
i hope this is right :)
which of these factors will affect a population regardless of the populations density ? PLEASE HELP
Answer:
Density independent factors affect populations regardless of their size. Examples are winter, drought, forest fires. These factors are mostly abiotic (non-living). Predation affects population size.
disease
The factors that will affect a population regardless of population density is flooding. The correct option is C.
What is population?A population is the entire group about which you want to draw conclusions. A sample is the specific group from which you will collect data.
The sample size is always less than the total population size. A population for this research does not necessarily refer to people.
A population is a subset of individuals from one species that live in a specific geographic area and interbreed in reproducing species. Some species' geographic boundaries are easy to establish, while others are more difficult.
Population change is influenced by three factors: birth rate, death rate, and migration. Though one or two of these factors may have an impact on a population in a specific area, all three have an impact on population change.
Thus, the correct option is C as the population can be get affected by flooding without regarding their density.
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GORAN
NARGO MYSETS
OMSRANOG
LECL
SUSTIE
Unscramble these words
if you are to establish your own animal and fish raising business,what it would be and why?
Answer:If you are to establish your own animal and fish raising business,what it would be and why? Get the answers you need, now!
Explanation:
When food leaves the stomach it is:
partly digested
completely digested
finished with the digestive system
undigested
Answer:completely digested
Explanation:because the enzymes in your stomach break it down
Answer:
Completely Digested....
hopes this helps you
Explanation:
WHAT TYPE OF MUTATION IS THIS?
Answer:
Missense mutation. This type of mutation is a change in one DNA base pair that results in the substitution of one amino acid for another in the protein made by a gene. Nonsense mutation. A nonsense mutation is also a change in one DNA base pair
Explanation:
Two parents, both with brown eyes, have four children. One child has brown eyes, like his parents, but the other three all have blue eyes. One of the children has been learning about genetics in science class and knows that brown eyes are dominant to blue eyes in humans. The student developed the following model of a Punnett square to predict the genotypes of his parents and his siblings.
Based on his model, the student claims that only one of the four children should have blue eyes. Which of the following explanations best describes why the Punnett square does not model the traits in the student’s family? (DOK 3)
Answer:
Punnett squares are not exact answers, they are only used to predict traits.
A.
The student is forgetting that a Punnett square is used to predict the outcomes of a genetic cross. The actual results do not always match up to the predicted outcomes.
Which statement best summarizes how the light-dependent reactions and light-independent reactions (Calvin cycle) work together during photosynthesis
The light-dependent reactions capture energy and the light-independent reactions use that energy to make glucose
The light-dependent reactions capture energy and the light-independent reactions use that energy to make ATP
The light-dependent reactions take in glucose (food energy) and the light-independent reactions use the glucose to make ATP
The light-dependent reactions capture bees and the light-independent reactions blend those bees up into golden cheddar mac and cheese... watch
out for the stingers though
The light-dependent reactions take in glucose (food energy) and the light-independent reactions use the glucose to make energy in the form of
sunlight
The light-dependent reactions capture energy and the light-independent reactions use that energy to make glucose
The energy captured in the light-dependent reactions is stored in ATP and NADPH and is used in Calvin's cycle to fixateCO2 in order to synthesize glucose
Grade 8 2020-2021
Which form of energy is almost always produced during energy transformations?
O
A heat
B. electricity
C. light
D. sound
Answer:
A
Explanation:
Because I searched it up
Answer:
A
Explanation:
During transformations from one form to another, heat energy is almost always produced. Whenever a form of energy is converted to the other form, heat is almost always released during the reaction.
What are two ways that acid rain affects the environment?
Acid rain can exhibit adverse affects on the environment by leaching aluminium from the soil and by creating nitrogen pollution.
The effects of acid rain:Acid deposition or acid rain is a term, which comprise any kind of precipitation with acidic constituents like nitric acid or sulfuric acid, which fell to the ground from the atmosphere in dry or wet forms.
The ecological effects of acid rain are clearly evident in aquatic environments like lakes, streams, and marshes as it can be harmful to aquatic species and wildlife associated with it. When acid rain flows through the soil it can leach aluminum from the soil, which washes into streams and lakes.
Some kinds of animals and plants are able to withstand acidic waters and some amounts of aluminum. However, some of those which are acid-sensitive will get lost due to decline in pH.
Acid rain also comprise nitrogen, and thus it can result in nitrogen pollution in the coastal waters leading to decline in the populations of shellfish and fish in the regions. Therefore, nitrogen in the acid rain can exhibit deleterious effect on some of the ecosystems.
Thus, acid rain affects the environment by creating nitrogen pollution and by leaching aluminum from the soil components.
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Why is it important to avoid applying too much nitrogen fertilizer?
O A. Too much nitrogen can buffer cells from extremes in pH.
B. Too much nitrogen in surface runoff can poison fish.
C. Too much nitrogen in surface runoff can cause algae to overgrow.
O D. Too much nitrogen can increase the salinity of soil.
Answer:
too much nitrogen in surface runoff can cause algae to overgrow
Nitrogen fertilizers used in large-scale agriculture could leave a legacy of pollution that would persist for decades in soil and groundwater, scientists in France and Canada warned, which published a study in the National Academy of Sciences magazine, " PNAS ". According to these scientists, the excess of these fertilizers in the environment has been linked to contaminated drinking water and can cause the rapid growth of algae that compromise aquatic ecosystems and coastal marine life.
Explanation:
Brainliest please?
Who was one of the first people to identify and observe cells from cork?
Answer:
The first person to observe cells was Robert Hooke. Hooke was an English scientist. He used a compound microscope to look at thin slices of cork.
Explanation:
Sorry if I am wrong let me know if I am.
10 POINTS !!! Why is it risky to build something whose natural frequency can be matched by
external vibrations?
Answer:Most objects have at least one natural frequency of vibration. If a nearby object vibrates at the same frequency, it can cause resonance. Resonance is an increase in amplitude of a vibration that occurs when external vibrations match an object's natural frequency.
Explanation:
It is risky to build something whose natural frequency is matched with external vibrations because of ; The effect of resonance
When an object constructed has a natural frequency which is equal to the frequency of a nearby external vibration, the amplitude of the vibration of the object will increase due to the resonance effect which occurs because the external frequency matches up with the natural frequency of the constructed object.
The negative effect of resonance is the increase in the amplitude of the vibration of the object which might lead to the partial or complete collapse of the constructed object.
Hence we can conclude that It is risky to build something whose natural frequency is matched with external vibrations because of ; The effect of resonance
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Help please I'll give brainlist
The environment limits population growth by changing birth and death rates. Briefly describe how each environmental factor listed below influences population size. Also, identify each environmental factor as a biotic or abiotic factor
Competitors
Disease
Food
Ph level
Prediction
Soil type
Temperature
Water availability
Answer:
Disease
Ph level
Water availability
Soil type
Explanation:
HAIR ANALYSIS
An investigator is excited to find a hair with the follicle attached when searching for evidence at a crime scene. Explain why the investigator might be excited.
The fact they hair follicles contains cellular materials rich in DNA will give them a strong lead in their investigation. Hence, the excitement.
The bottom of the hair follicle marks the point where hair growth begins, Investigators are often helped in their crime research by the outcome of DNA test. Therefore, investigators often seek materials or elements at crime scenes which could be evaluated to gives DNA result of potential suspects.Therefore, the fact that hair follicles contain cellular materials which are rich in DNA, will excite investigators as that have obtained a key lead in their investigation.
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Which of the following are outputs of photosynthesis that are used as inputs for cellular respiration? [SELECT ALL THAT APPLY]
a. H20
b. CO2
c. O2
d. C6H12O6
Which of the following is an example of cohesion?
A. water transforming into vapor
B. water soaking into a paper towel
C. water slowly dissolving rocks over time
D. water forming droplets during a rainstorm
Answer:
b
Explanation:
How many chromatids are found in this nucleus?
Six chromosomes in metaphase are shown. They resemble the letter X with red dots in the center.
A.
3
B.
6
C.
12
D.
24
Each chromosome has 2 chromatids so 2*6=C.12 chromatids
Answer:
C. 12
Explanation:
Each chromosome has 2 legs called chromatids. There are 6 chromosomes, so 6*2 = 12.