The statements that are true about the esophagus are:
The esophagus is a muscular tube.The esophagus is the muscular tube of the digestive tract that develops from the pharynx to the stomach.
The esophagus moves food from the mouth to the stomach.This part of the digestive system is traversed by food, which enters through the mouth, passes through the pharynx, crosses the esophagus and reaches the stomach.
In this process, the esophagus has an active participation, since its walls contract to promote the advance of the food.
Therefore, we can conclude that the esophagus is a muscular tube that moves food from the mouth to the stomach.
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Which of these is
MOST LIKELY to
lead to the
establishment of a
THEORY?
ME
A. a single experiment about the effects of nutrients on
fish in an aquarium
B. a well-supported hypothesis, many experiments with a
lot of peer review
C. a series of social media posts about the spread of a
disease
Answer:
the answer is B
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se presenta cuando un dividuo se alimenta de una parte del cuerpo de otro individuo conocido como huésped u hospedero Cuál es el organismo
Answer:
El parasitismo ocurre cuando un individuo, el parásito, se beneficia de otro individuo, el anfitrión, mientras daña al anfitrión en el proceso. Los parásitos se alimentan de tejidos o fluidos del huésped y se pueden encontrar dentro (endoparásitos) o fuera (ectoparásitos) del cuerpo del huésped (Holomuzki et al. 2010).
PLS HELP THIS IS GIVING ME DEPRESSION
33 divide by 55 I'm confused as well
165 miles per hour
d = rt
d = 55*3
d = 165
Hellpppp I really need the answers
Answer:
x- summer y- winter
Explanation:
It looks like x is closer to the equator and would therefore have hotter weather, meanwhile y looks like it's closer to the top of the planet (where its a lot colder)
The scientist who is famous for his work on natural selection is ___________.
Answer:
Charles Darwin
Explanation:
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YA'LL ARE SMART ! PLEASE HELP!
Answer:
hello
Explanation:
it's 18m/s
180/10
Autonomic nervous system includes which one of the following?
a) Vagus Nerve (b) Hypoglossal Nerve (c) Facial Nerve (d) Olfactory Nerve
Answer:
d
Explanation:
A family paid $ 28,000 as a down payment for a home. If this represents 14% of the price of the home, find the price of the home.
Answer:
175000.00
GBP
16
%
=
28000
so we can also say
100
%
=
x
Then from here the rule says that you do
100
×
28000
16
So if we do that we get a result of
175000
That is the price of the home.
x
=
175000.00
GBP
Explanation:
So we must begin with a rule that is commonly used to work this out.
Hope this worked out <3What is the definition of period?
1) cycles per second
2) vibrations per hour
3) seconds per cycle
4) Number of vibrations
Period is defined as cycles per second. Therefore option (A) is correct.
What are the characteristics of period?A period T is the time required for one complete cycle of vibration to pass a given point. As the frequency of a wave increases, the period of the wave decreases.
The unit for time period is 'seconds'. Frequency and time period are in a reciprocal relationship that can be expressed mathematically as: T = 1/f or as: f = 1/T. Orbital period is the time for something to go round (orbit) something else.
Frequency and Period are in reciprocal relationships and can be expressed mathematically as: Period equals the Total time divided by the Number of cycles.
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If human red blood cells are placed in a 0 osmoles/L solution, a 100 osmoles/L solution, a 300 osmoles/L solution, and a 500 osmoles/L solution, then _________________ will be the isotonic solution.
OPTIONS:
0 osmoles/L solution
100 osmole/L solution
300 osmoles/L solution
500 osmoles/L solution
If human red blood cells are placed in solutions of different osmolarity, then the 300 osmoles/L solution will be the isotonic solution.
An isotonic solution to the red blood cell would be a solution that has the same solute concentration as the red blood cell.
Isotonic solutions are different from hypotonic and hypertonic solutions. Hypotonic solutions would have lower solute concentrations than the red blood cell while hypertonic solutions would have higher concentrations than the red blood cells.
The red blood cells of humans have a certain amount of solute in their cell sap which has been approximate to be between 286 and 295 osmoles/L. Thus, the only solution close to being an isotonic solution to these cells would be the 300 osmoles/L solution.
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Answer: 300 osmoles/ L solution
Explanation:
The 300 osmoles/ L solution is the solution closest to the osmolarity of a normal human red blood cell.
This means that the 300 osmoles/ L solution is the isotonic solution. If added to human red blood cells, the shape and size of the red blood cells with remain as they were, unchanged (unlike if a hypotonic/ hypertonic solution was added.)
In a certain ecosystem, eagles
prey on fish. If the number of
eagles in the ecosystem increases,
the carrying capacity
A. of the fish population will go up
B. of the fish population will go down
C. of the eagle population will go down
D. will be unaffected
If the number of eagles in the ecosystem increases,the carrying capacity of the fish population will go down.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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please HELP i’ll give brainlist and 100 points
1.name the reactants in the equation
2. name the products in the equation
3. state whether this reaction is endothermic and explain how you are able to recognize this
4. state whether this reaction is anabolic or catabolic and explain how you are able to recognize this
According to the image,
1. The reactants of photosynthesis is carbon dioxide, water, and solar energy.
2. The products of photosynthesis is glucose and oxygen
3. The photosynthesis reaction is endothermic. For a reaction to be endothermic, energy (in this case, solar energy) must be put into the system in order for the reaction to occur. Whereas, exothermic reactions are spontaneous and don't require an initial input of energy.
4. Photosynthesis is an anabolic pathway. Carbon dioxide and water are utilized to synthesize glucose. Whereas, the process of glycolysis is catabolic because you break down glucose into 2 molecules of pyruvate.
Which developed country has the fastest population growth rate today
Answer:
Officially known as the Sultanate of Oman, Oman has the world’s highest population growth rate. Located in the southwestern region of Asia, the country has an estimated population of 4.83 million people as of 2018, which is rapid growth from 2.77 million in 2010.
Explanation:
Hope this helps :)
and also pls tell me what you think of my pfp I just found it
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What happens when an atom that has lost an electron comes in contact with an atom that has gained an electron
Answer:
U will gain more neutron and electron
Explanation:
Hope that's the correct answer
feel the inside of your elbow as you lift a book. you should feel a strong cord. what is this? what does it do?
We feel the inside of the elbow as we lift a book. We should feel a strong cord. This cord is known as Oblique cord.
What is the Oblique cord?The oblique cord is a ligament which is present between the ulnar and radius bones in the forearm region near the elbow. Oblique cord takes the form of a small, flattened band, which is extending downward and lateralward, from the lateral side of the ulnar bone tuberosity at the base of the coronoid process to the radius of a little below the radial tuberosity. The fibers in this cord runs in the opposite direction to those of the Interosseous membrane of the forearm region of the hand.
The oblique cord may simply be defined as an additional tie which is between the radius and ulna of the hand which is aiding other soft tissue structures such as the annular ligament and interosseous membrane. Additionally, the oblique cord may also prevent the anterior shearing of the proximal radius under the extreme compressive loads.
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HELP PLEASE!!!!!!!!
Which of the following scenarios is most likely using the same type of cell transport as the sodium-potassium pump?
A.
A child's badly skinned knee heals rapidly.
B.
Animal cells control calcium levels to maintain proper signaling between cells.
C.
Cell activities remove fluid in a patient with swollen abdominal tissues.
D.
Minerals from food diffuse into an animal's intestine.
Answer:
option (A) is the correct.
Explanation:
I hope this helps you ♡♡
The statement which represents a scenario that most likely uses the same type of cell transport as the sodium-potassium pump is that a child's badly skinned knee heals rapidly. Thus, the correct option for this question is A.
What is the sodium-potassium pump?A sodium-potassium pump may be defined as a type of pump or channel or enzyme that is significantly found in the membrane of all animal cells. It performs several functions in cell physiology. The Na⁺/K⁺-ATPase enzyme is active. It effectively moves sodium and potassium ions against large concentration gradients.
According to the context of this question, the working mechanism of the sodium-potassium pump depends on the movement of two potassium ions into the cell where potassium levels are high and the pump of three sodium ions out of the cell and into the extracellular fluid. It plays an important role in contracting the cardiac muscle, kidney function, and nerve signaling.
Therefore, a child's badly skinned knee heals rapidly is the statement which represents a scenario that most likely uses the same type of cell transport as the sodium-potassium pump. Thus, the correct option for this question is A.
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Photosynthesis is a process in which plants prepare food using carbon dioxide, chlorophyll, and water in the presence of sunlight.
During photosynthesis,
energy is transformed into
energy.
Answer:
Yes Photosynthesis is a process in which plants produce their food using carbon dioxide, chlorophyll and water in the presence of sunlight.During this process the solar energy from the sun is transformed into chemical energy
Explanation:
If this helps please mark me BRAINLIEST
For 100 Points!
Which of the following factors are responsible for the annual rise and fall in carbon dioxide levels? (Several choices may be correct.)
A) fallen leaves decaying in autumn
B) consumption of more fossil fuels in the winter
C) plant growth in the spring
D) increase in surface temperature of the earth during summer
PS: I've tried A & D and B & D (they were both wrong)
I believe the answer is
A & C.
Following factors are responsible:-
Fallen leaves decaying in autumn.Plant growth in the springWhat is the reason for carbon dioxide rise in environment?Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy. Fossil fuels like coal and oil contain carbon that plants pulled out of the atmosphere through photosynthesis over many millions of years.What are the consequences of rise in carbon dioxide?Transpiration is affected by the degree of ground cover.Rising carbon dioxide concentrations will increase plant growth. More rapid leaf area development and more total leaf area could translate into more transpiration.Rising carbon dioxide concentrations will decrease leaf stomata. conductance to water vapor. This effect could reduce transpiration.Rising carbon dioxide concentrations and rising global temperatures.To know more about transpiration here
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Which are the reactants of photosynthesis
Answer:
The reactants of photosynthesis are everything to the left of the "———>" arrow, thus the reactants of photosynthesis are carbon dioxide, water, and sunlight energy. The products of photosynthesis are everything to the right of the "———>" arrow, thus the products of photosynthesis are glucose and oxygen
Explanation:
5 reactants of photosynthesis:
The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.
A clean suit should be worn at the crime scene on Willow Lane by CSI personnel to _____.
identify the CSI personnel from other first responders
identify the CSI personnel from other first responders
protect against an unwanted transfer of evidence
protect against an unwanted transfer of evidence
keep their clothes from being spoiled by bodily fluids
keep their clothes from being spoiled by bodily fluids
maintain personal safety around unhealthy contaminates
Answer:
identify the CSI personnel from other first responders
Explanation:
During photosynthesis, plants and other photosynthetic organisms release oxygen into the atmosphere. Without this process, Earth's atmosphere would have little oxygen. Identify two reasons why photosynthesis is critical for animals to produce energy for life functions. How would this effect the animals ability to create the four main types of biomolecules.
Answer:
Without oxygen from photosynthesis animals would not have oxygen for the four type of biomolecules which all require oxygen. Carbon hydrogen and oxygen is carbohydrates and same for lipids. Proteins would not have the oxygen for CHON which is carbon hydrogen oxygen and nitrogen. And nucleic acids which are CHONP carbon hydrogen oxygen nitrogen and phosphorus would not have oxygen. And without oxygen the animals would die and not be able to produce these biomolecules.
Answer: To grow and reproduce, all creatures require energy. Cellular respiration is utilized by many organisms (including all plants) to create ATP, which is needed for cellular energy. As a substrate, carbohydrates such as glucose are used in the respiration reaction. Plants produce their own fuel for respiration through photosynthesis, but humans consume food to do so. Plants would not be able to breathe if photosynthesis did not occur. Furthermore, carbohydrates created during photosynthesis are needed to construct plant cell components such as the cellulose cell wall.
Explanation: Facts... I took this last year in 9th or 10th grade.
Select all the molecules that are produced in photosynthesis and then used in cellular respiration
ATP
Water
Oxygen
Glucose
Carbon Dioxide
Answer:
carbon dioxide
Explanation:
cells use carbon dioxide and energy from the sun to make sugar molecules and oxygen
need an answer, please need an answer, please.
no copy
Explanation:
In order to meet the basic needs of increases population, the present society has under taken a series of steps like rapid industrialization, unplanned urbanisation, deforestation, overexploitation of natural sources, etc.
The outcomes of the above human activities have contributed significantly to the degradation of environment around us.
Some important impacts of human activities on environment are outlined below:
1. Deforestation:
In order to provide timber and farm land to increased population, large number of forest trees are cut and forest area is converting to farm lands. The rate of deforestation is so faster that around 1.5 million hectare of forest cover is lost every year is India alone. The process of deforestation results in decreasing rainfall, increasing global temperature, loss of top soil, modification of climatic conditions etc.
2. Industrialization:
Although the industrial activities of man provide basic need of the society, simultaneously the same release a lot of pollutants to the environment. The pollutants in environment cause loss of raw materials, health hazards, increase in death rate, damage to crop, making environment unfit for living organisms etc.
3. Loss of ecological balance:
The excessive use, misuse and mis-management of biosphere resources results in disturbance in ecosystem or ecological imbalance.
4. Air pollution:
The anthropogenic release of various air pollutants to the environment causes a number of dreaded phenomena like green house effect, ozone layer depletion, acid rain and smog formation etc.
5. Water pollution:
Human activities in respect of disposal of sewage wastes, solid wastes, municipal wastes, agricultural and industrial wastes cause the environment unfit for day to day use. Besides, polluted water spreads or leads to different diseases.
6. Increased consumption of natural resources:
Since the starting of industrial era, the natural resources are constantly utilised for the production of one or more products for the day to day use of society.
7. Production of waste:
Rapid industrialization and unplanned urbanization release a lot of toxic waste material either in solid or liquid or gaseous state which induces a number of serious environmental hazards.
8. Extinction of Wildlife:
Since forests are natural habitats of wild life (both plants and animals) deforestation leads to the extinction of valuable wild life and loss of biodiversity.
9. Habitual destruction:
The commercial and industrial activities associated with mining, construction of dams, fishing, agriculture etc. cause habitat destruction which is a pathway to pollution.
10. Noise pollution:
The man-made noise due to mechanized automobile, industries, trains, aero planes, social functions etc. causes noise pollution which has impact on both biotic and a biotic components of environment.
11. Radiation pollution:
The radiations from radioactive substances used in nuclear reactors and nuclear weapons can have significant impact on genetic materials of body (DMA, RHA etc.)
12. Soil erosion:
The anthropogenic processes like deforestation and overgrazing induce soil erosion which causes soil moisture reduction, lowering of productivity, decline in soil fertility etc.
How many types of pollination are there?
Answer: two
Explanation: Although there are many different types of pollinators, there are just two main types of pollination—self-pollination and cross-pollination.
What a types of organisms do lactic acid fermentation? Summarize this process
Answer: In lactic acid fermentation, pyruvate from glycolysis changes to lactic acid. This type of fermentation is carried out by the bacteria in yogurt, and by your own muscle cells. In alcoholic fermentation, pyruvate changes to alcohol and carbon dioxide. This type of fermentation is carried out by yeasts and some bacteria.
Explanation: Found on Flexbooks.
Lactic acid fermenting bacteria is Lactobacillus, though other bacteria and even yeast are sometimes used.
Lactic acid fermentation is a metabolic process by which glucose or other six-carbon sugars are converted into cellular energy and the metabolite lactate, which is lactic acid in solution.What is lactic acid?Lactic acid is mainly produced in muscle cells and red blood cells.It forms when the body breaks down carbohydrates to use for energy when oxygen levels are low. When body's oxygen level might drop include: During intense exercise lactic acid is formed.What is fermentation?Fermentation is a chemical process by which carbohydrates, such as starch and glucose, are broken down anaerobically. Fermentation has many health benefits and is used in the production of alcoholic beverages, bread, yogurt, sauerkraut, apple cider vinegar and kombucha.
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how to determine density?
Answer:
The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre.
Explanation: HOPE IT HELPS AND PLS MARK BRAINLIEST
How are atoms, elements, and compounds related?
Answer:
Atoms join together to form elements, elements join together to form compounds.
hope this helps <3
HELP!!!!!!
I don’t understand what to do. If you can please explain but just giving the answers would be fine.
theres no question or picture sorry
what is the function of mitochondria
A. They create the proteins that the cell needs to function
B. They Store energy from Sunlight to use in photosynthesis
C. They Convert energy from food into energy the cell can use
D. They produce nucleic acids that release energy for the cell
Answer:
Mitochondria is the powerhouse of the cell!
Explanation:
A. That is the Endoplasmic reticulum
B.Cholorplasts
C. Food containing carbohydrates can be broken down to glucose and the mitochonrida has an important process knonw as the TCA cycle that converts the glucose to energy.
D. Not really true at all. DNA is not used for energy
Answer:
C
Explanation:
The other answers don't seem right, so I think this answer is probably the right one.
A doctor sees a patient who has kidney failure, lack of motor coordination, and a poorly functioning nervous system. After testing, the doctor finds that these symptoms are all related to a chronic lack of energy in some of the patient's cells. The doctor diagnoses a metabolic disorder known as Leigh's disease.
Based on this evidence, a malfunction in what organelle is most likely responsible for Leigh's disease?
Mitochondria are the energy centers of the eukaryotic cells. In these organelles, ATP (the energy coin of the cell) is produced by the oxidation of pyruvate (Krebs cycle) and oxidative phosphorylation.
Based on this information, malfunction in MITOCHONDRIA is most likely responsible for Leigh's disease.Cellular respiration is series of metabolic reactions by which eukaryotic cells produce energy in the form of ATP from foods and oxygen.Cellular respiration has three main stages: glycolysis, the Krebs cycle and oxidative phosphorylation.Glycolysis occurs in the cytoplasm, whereas the Krebs cycle and oxidative phosphorylation occur in the mitochondria.Learn more in:
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