Which of the following is least involved in the mechanical breakdown of food, digestion, or absorption?.
Answer:
Esophagus
Explanation:
In the digestion and absorption of food, the esophagus is the least involved.
It is a part of the digestive system, but all it does is simply pass the food down to the stomach.
The one that is least involved in the mechanical breakdown of food, digestion, or absorption is esophagus. The correct option is d.
Even though it is a vital component of the digestive system, the esophagus plays a much smaller role in the mechanical digestion of food than the other alternatives.
A muscular tube called the esophagus moves food from the mouth to the stomach by a process known as peristalsis, which calls for repetitive muscle contractions.
Its main job is to push food down the digestive tract so that it can travel more easily. Food is mostly mechanically broken down in the mouth while being chewed by the teeth and in the stomach while being churned by muscles.
The majority of digestion and nutrient absorption occurs in the small intestine.
Thus, the correct option is d.
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Your question seems incomplete, the probable complete question is:
Which of the following is least involved in the mechanical breakdown of food, digestion, or absorption?.
a) Stomach
b) Teeth
c) Small intestine
d) Esophagus
Which of the following does water pollution affect: surface water, ground Water, or ocean water? A)Pollution affects surface water and ground water only.
B)Pollution affects surface water, ground water, and ocean water.
C)Pollution affects surface water and ocean water only.
D)Pollution affects groundwater and ocean water only.
Water pollution includes any kind of water masses or currents. Option B is correct. Pollution affects surface water, ground water, and ocean water.
What is water pollution?
Water pollution can be defined as the abnormal accumulation of strange elements in the water with harmful consequences to natural ecosystems.
Water pollution involves all the possible ways in which any water body can be contaminated with harmful elements.
The most damaging source of water pollution is human activities, producing the biggest damage to natural ecosystems.
Contaminating elements might be either gasses, solid material, or liquid material. Chemical elements, microbiota, heavy metals, and sediments affect all forms of life.
As said before, several sources can contaminate water masses, and they do it directly and indirectly.
Directly pollution occurs when a strange element is thrown directly into the water. They can be thrown directly into a river, a lake, the sea, or the ocean.
Indirect pollution occurs when pollutants travel from other places and contaminate other masses of water. For instance, a polluted river contaminates the lake where it ends. The lake pollutes the river that begins in the lake. This last river ends in the sea and takes all pollutants to the sea.
We can affirm then that water pollution affect surface water, ground water, or ocean water. Option B is correct. Pollution affects surface water, ground water, and ocean water.
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Answer: pollution affects surface water, groundwater and ocean water
Explanation: I did the test and this is an easier answer then reading through the whole other one
HEEEELLLLPPPPP
Deforestation is the second leading cause of global warming (climate change) worldwide, and it produces about 24% of global greenhouse gas emissions. Deforestation in the tropical rainforests contributes more carbon dioxide to the atmosphere than the sum of all cars and trucks that drive on the world’s roads.
Why would deforestation this lead to more carbon dioxide?
a
The changed habitats support more animals, like native birds and mammals, that produce more carbon dioxide.
b
The increased amount of timber harvested produces oxygen gas, which encourages the wildlife to generate carbon dioxide.
c
Loss of trees leads to a decrease of the ability of forests to act as carbon sinks to remove carbon dioxide from the atmosphere.
d
Equipment used for clear-cutting produce metric tons of carbon dioxide, which is released into the atmosphere during the process of deforestation
Answer:
C
Explanation:
According to Worldwildlife.org, Forest play a critical role in mitigating climate change because they act as a carbon sink - soaking up carbon dioxide that otherwise be free in the atmosphere and contribute to ongoing changes in climate patterns.
How many atoms are in the unit cell of a body-centered tetragonal space lattice?
Answer:
2 atoms
Explanation:
BCT stands for body-centered tetragonal space lattice. It is a crystal structure of 8 atoms forming tetragon corners with one central atom. BCT has 2 atoms per unit cell.
What is body-centered tetragonal space lattice?BCT is an 8 atom crystal structure which forms tetragon corners and one atom in center. It has 2 atoms in a unit cell.
It is related to material science, physics and crystallography.
It is actually a distortion of the bcc lattice, It is the monatomic analog of the L10 structure.
Thus, body-centered tetragonal space lattice has 2 atoms in the unit cell.
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In humans, if a non-disjunction event led to an individual with a genotype of xxy, they would.
In humans, if a non-disjunction event led to an individual with a genotype of XXY, they would be male because they have a Y chromosome.
What are X and Y chromosomes?The X chromosome and Y chromosome are homo-logous chromosomes that determine the se_x in mammals.
The presence of the Y chromosome is indicative of the males, whereas two X chromosomes are females in normal conditions.
Non-disjuntion refers to the faulty separation of homo-logous chromosomes during meiosis.
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Use the drop-down menus to indicate where each exocrine system structure is located. the liver and pancreas are located in the . the goblet cells are located in the . the oil and sweat glands are located in the . the salivary and lacrimal glands are located in the .
What is the exocrine system?
The salivary and lacrimal glands are placed withinside the face land that makes materials along with sweat, tears, saliva, milk, and digestive juices, and release them thru a duct or beginning to a frame surface.
Thus it is well explained.
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Answer:
The liver and pancreas are located in the abdomen.
The goblet cells are located in the top layers of organs.
The oil and sweat glands are located in the skin.
The salivary and lacrimal glands are located in the face.
Explanation: Correct
Definition of pandemic
A global mind-set is an increasingly valued _________ trait.
Answer:
task-oriented
Explanation:
A global mind-set is an increasingly valued task-oriented trait.
Answer:
A global mindset is an increasingly valued task-oriented trait.
Explanation:
A global mentality is a task-oriented attribute that is becoming more appreciated. All characteristics are either positive or bad, and excellent leaders should have only positive characteristics. The implications of leadership traits cannot be ignored.
help me with this science question
Answer:
The second and third options are erosion
Explanation:
A dust storm passing through the area isn't really relevant, limestone dissolving in the acid rain is chemical weathering, and a rock cracking as it expands is mechanical weathering in response to thermal stress.
What 3 things increase CO2 in the atmosphere?
I need the answers asap
Please
Answer:
Deforestation
Burning of fossil fuels
for energy and transportation
Answer:
Volcanic Eruptions, burning fossil fuels, deforestation, fluorinated gases
Explanation:
Natural:
Volcanic EruptionsHuman:
Deforestation, Burning of fossil fuels, use of fluorinated gasesWhich repair process in e. Coli uses visible light to repair thymine dimers?.
Answer:
photoreactivation repair
Explanation:
Photoreactivation utilizes the enzyme photolyase to break the bonds formed during pyrimidine dimerization. A thymine dimer produced by UV irradiation is bound by photolyase. Visible light energy is absorbed by photolyase and is redirected to break the bonds forming the dimer.
In addition to bacteria, this DNA repair mechanism is also found in single-celled eukaryotes, plants, and some animals such as Drosophila.
What is mechanical digestion? Describe the first stage of mechanical digestion.
Mechanical digestion means breaking down food mechanically. By chewing and tearing with teeth, food breaks down into smaller parts and no enzymes are used.
What is the first step in mechanical digestion?The complex pieces of food that are eaten have to be split into simpler particles that can be acted upon by different enzymes.
This is mechanical digestion, which starts in the mouth with chewing or mastication and continues with churning and combining actions in the stomach.
Thus, this could be the answer.
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Major areas of science include
physical science
basics science
life science
ethical science
social science
Answer:
physical earth and life science
Explanation:
Answer:
physical earth and life science
Explanation:
Could melanin granules be moved by dynein and kinesin along an actin microfilament?.
We can confirm that melanin granules could in fact not be moved by dynein and kinesin along an actin microfilament.
Why can these substances not be moved along a microfilament?This has to do with the fact that these proteins are specific to microtubules, and therefore are not able to move along microfilaments. This is why the dynein and kinesin motor proteins would not be able to transport the granules along microfilaments.
Therefore, we can confirm that melanin granules could in fact not be moved by dynein and kinesin along an actin microfilament.
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Which of the following is the most likely flow of energy in an aquatic ecosystem? a. phytoplankton → mammal → zooplankton → fish b. phytoplankton → zooplankton → fish → mammal c. zooplankton → phytoplankton → mammal → fish d. mammal → fish → zooplankton → phytoplankton
The flow of energy in an aquatic ecosystem phytoplankton → zooplankton → fish → mammal.
What does the bottom-up model?The bottom-up effect means that a lower trophic level in the biological network affects the community structure of higher trophic levels by means of resource restriction.
whereas the top-down effect refers to a higher trophic level that influences the community structure of a lower trophic level through predation.
Thus, opotion "B" is correct.
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The picture shows us how the Sun's rays strike Earth. Because of the Earth's tilt on its axis, some parts of Earth are having summer
and others, winter. What letter or letters on the Earth are experiencing summer?
A) B
B) C
C) B and C
D) C and D
Answer:
B n C
Explanation: You can tell this because when you look at the diagram it shows B and C facing the sun so that means it's summer.
Answer
D.) C and D
Explanation:
It may look like B and C, but the sun hardly reaches up in the north, plus its axis is shifted so it's not technically summer for them yet, this leaves the bottom, which will rotate and give both sides the taste of summer glory.
Once the earth rotates more, it will be summer for B. and A.
But the graph shows that the answer is
D.) C and D
Your parents have had a leaky pipe underground in your
backyard for years. You have two trees in the backyard. One is located closer to the leaky pipe while the other tree is farther away. What will be the response of the tree that is further away?
Stimulus:
Tropism:
Response:
Hydrotropism is the root motion toward the water source. In the example, Stimulus: Water. Tropism: Hydrotropism. Response: Roots growth toward the water leak.
What is Tropism?In botanic tropism refers to the biological response of the plant during its development to an external stimulus. These responses are usually noticed as plant motion, forward to or away from the stimulus source.
Stimuli can be good or bad for the plant, and depending on this, the plant will try to get closer or farther. According to this, Tropism can be either positive or negative.
Positive tropism ⇒ the plant moves forward to the stimuli sourceNegative tropism ⇒ The plant moves away from the stimuli source
According to the stimuli, there are different kinds of tropism,
Tropism Stimuli
Phototropism LightGeotropism GravityHydrotropism WaterTigmotropism Solid objectChemotropism Chemical Airtropism AirIn the exposed example,
Stimulus ⇒ Water from the leaky pipeTropism ⇒ Hydrotropism Response ⇒ The tree roots grow forward to the leak looking forwater source
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Which of these describes a pathogen that infects a human
by injecting its DNA into a body cell?
A bacterium that creates a toxin that destroys the
cell, keeping the cell from working in a normal
manner
A parasite that robs the ćell of nutrients, interfering
with organ functions
O A fungus that eats keratin found in skin cells,
causing inflammation and interfering with the skin
tissues' ability to protect
A virus that changes the way a cell works, causing
the cell to make more viruses instead of performing
its intended function
Answer:
the ans is
A virus that changes the way a cell works,causing the cell to make more viruses instead of performing its intended function.
Non-flowering plants are known as seedless plants
Answer:
i would say True Beauce there put in the same category
(Non-flowering and seedless plants are known as cryptogams)
True or false. A trna with an anticodon complementary to the stop codon catalyzes the reaction by which translation is terminated.
Answer:
It is false not true that is the answer
please what is meant by photosynthesis
Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored in carbohydrate molecules, such as sugars and starches, which are synthesized from carbon dioxide and water, In most cases, oxygen is also released as a waste product that stores three times more chemical energy than the carbohydrates. Most plants, algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis is largely responsible for producing and maintaining the oxygen content of the Earth's atmosphere, and supplies most of the energy necessary for life on Earth.
Explanation:
is it 0.05, 0.04, 0.15 and 0.80
Answer:
No
Explanation:
I have 0.04 cents, you have 0.05, Mom has 0.15, and dad has 0.80
True or False: In a box and whisker plot, 50% of the data is between Q1 and the median
Answer:
Minimum = 0%
Q1 (Lower Quartile) = 25%
Median = 50%
Q3 (Upper Quartile) = 75%
Maximum = 100%
That is true. In a box and whisker plot, Q1 is the first quartile (first 25% of the data) is between the lower quartile (Q1) and the median. The median is the middle, so 50% will fall between Q1 and the median. It's important to understand the various measures of central tendency and how they can be used to analyze the spread of data within a given set, which can provide valuable insights and understanding about the overall trends present within the data.
Movement of phloem sap from a source to a sink ________.
Bulk flow refers to the movement of phloem sap from a source to a sink in plants.
What is Phloem?This is a vascular tissue found in plants which helps to transport and distribution of the organic nutrients derived from photosynthesis.
Bulk flow occur when these nutrients present in the phloem sap are moved from source to sink.
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Which animals are cold-blooded, breathe with lungs, most lay eggs, although in some the eggs hatch inside the female, and have scales or plates? question 17 options: fish reptiles mammals amphibians
Answer:
Fish is the answer
Explanation:
Tell me if I’m wrong or right, it just makes the most sense.
Also this is my first brainless answer!
According to the given information, the animals belong to reptiles.
What are the characteristics of reptiles?The class reptiles are cold-blooded animals which means that the temperature of their body changes according to the surrounding temperature.They mostly lay eggs and in some cases, the eggs are hatched by the females inside the water.Their body has scales or plates to protect themselves from predators. They live on land and in water for some time and respire using their lungs.Thus, the animals belong to reptiles.
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The section of dna being used to make the strand of mrna is known as a.
The section of DNA being used to make the strand of mRNA is known as the transcription unit.
What are transcription units?Transcription units are base sequences of DNA that make up a single mRNA molecule during the process of transcription.
During gene expression, genes are first transcribed to genetic codes in mRNA molecules before being translated to their respective proteins.
Each unit of transcription represents a gene along with non-coding base sequences in DNAs, otherwise known as introns.
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3. use the simulation to observe the first-generation offspring from the cross between flowers c and a. what is the most likely genotype of flower c? use a punnett square to justify your explanation.
To observe the first generation offspring of the cross between the flowers c and a. the most likely genotype of flower c is its color.
What is genetic probability?Probability serves to mathematically estimate the possibility of events that happen by chance, that is, as a matter of luck. It can be defined by the following formula: Where P is the probability that an event will occur, A is the number of desired events, and S is the total number of possible events.
With this information, we can observe the first generation offspring of the cross between the flowers c and a. the most likely genotype of flower c is its color.
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Answer: The most likely genotype is color.
Explanation:
50 points and I will mark you a brainlest!
How does adding carbon dioxide to the ocean
affect its pH?
Provide an explanation for the results (or what should have happened) using SCIENTIFIC REASONING
Explanation:
Because of human-driven increased levels of carbon dioxide in the atmosphere, there is more CO2 dissolving into the ocean. The ocean's average pH is now around 8.1 , which is basic (or alkaline), but as the ocean continues to absorb more CO2, the pH decreases and the ocean becomes more acidic.
The first of these to occur when a new volcanic island rises out to the sea is
topsoil is formed.
lichens grow.
mosses grow.
rock cools and cracks.
Answer:
D
Explanation:
Rock cools and cracks because the topsoil can't be formed until the rocks crack, and if the topsoil isn't formed then nor lichens nor mosses can grow.
What adaptation has the stigma developed that helps with fertilization?
An adaptation in the stigma that helps with fertilization is the ability of pollen grains to germinate on this structure. It allows plants to reproduce.
What is an adaptation?
An adaptation can be defined as a type of trait that allows organisms to survive and reproduce in particular conditions.
Adaptation favors the process of natural selection, which involves differential survival and reproduction.
Moreover, stigma is a plant structure that receives pollen grains (male gametes) during fertilization.
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