ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and defecation. The first of these processes, ingestion, refers to the entry of food into the alimentary canal through the mouth.
The digestive system performs three main processes: digestion of food, which includes mechanical and chemical breakdown, absorption of nutrients primarily in the small intestine, and elimination of solid food waste through defecation.
Functions of the Digestive System
The digestive system is integral to the process of obtaining nutrition and energy from food. It involves a multi-step process, which includes several distinct but interconnected functions. Three primary processes take place in the digestive system:
Digestion of Food: This is the mechanical and chemical breakdown of food into smaller components that can be absorbed into the bloodstream.
Absorption of Nutrients: After digestion, the small intestine absorbs nutrients from the food and transfers them to the bloodstream, where they can be distributed and utilized by the body.
Elimination of Solid Food Waste: Finally, the body expels undigested and unabsorbed food materials along with waste products, a process culminating in defecation.
Mechanical digestion starts with mastication (chewing) in the mouth, while chemical digestion involves enzymes breaking down complex molecules. Most absorption occurs in the small intestine, but the large intestine (colon) also plays a role in absorbing water, some vitamins, leftover salts, and in the formation of feces.
In sickle cell disease variation in one gene causes red blood cells to bend or sickle this means the sickle cells
Sickle cell anemia is caused by a mutation in the gene that tells your body to make the red, iron-rich compound that gives blood its red color (hemoglobin). Hemoglobin allows red blood cells to carry oxygen from your lungs to all parts of your body.
Hope this helps :D
brainliest??
Which statements describe traits of nonvascular plants? Check all that apply.
They use roots and stems for nutrient transport.
They are found close to the ground.
They have seeds for reproduction.
They produce flowers.
They use diffusion for nutrient transport.
Answer: They are found close to the ground.
They use diffusion for nutrient transport.
Explanation:
Non- vascular plants are the plants which do not posses a vascular system. They do not have vascular tissues called as xylem and phloem. Examples of non-vascular plants include bryophytes- liverworts, mosses and hornworts. They have simple tissues for the transport of water.
Among the options the following traits of non- vascular plants are:
They are found close to the ground.: The non-vascular plants lack vascular tissues, true roots stems and leaves. They directly absorb water and minerals directly from the soil. They grow as clumps and mats over the grounds.
They use diffusion for nutrient transport.: As the non-vascular plants lack vascular tissues they directly absorb the water and nutrients from the soil. As a result of this these plants are small and are limited to moist habitats. The transport of these nutrients takes place from cell to cell by diffusion and osmosis process.
Answer:
b and e
Explanation:
Match the activities to the respective category
diamond=carbon and its comp.
water=oxygen and its comp.
carbohydrates=carbon and its comp.
ozone=oxygen and its comp.
ethane=carbon and its comp.
Hope my answer helps! :)
Carbon and its components: ethane, carbohydrates, diamond.
Oxygen and its components: Ozone, water
What are carbon and oxygen-containing components?Carbon-containing components have carbon as their building source. Oxygen-containing components have oxygen as their basic unit.
Ethane is a carbon-containing component because it is made up of carbon and hydrogen units by built by covalent bonds.Carbohydrates are built by carbon, hydrogen, and oxygen.Diamond is made up of repeated units of carbon via covalent bonds making it the strongest compound.Ozone is made up of oxygen having its chemical formula O3 meaning 3 atoms of oxygen.Water is made up of one atom of hydrogen and 2 atoms of oxygen.To learn more about carbon and oxygen, refer to:
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what is the name for the "in between" phase in cell divisons
Im pretty sure it is Inter phase
Cells with the same structures and functions work together to form A. systems. B. tissues. C. organs. D. organisms.
B, they work together to form a tissue, hope this helps, have a great day.
B. tissues.
cells make up tissues, tissues make up organs, organs make up organ systems and organ systems make up an organism.
Which feature of the sun is caused due to an irruption of high-energy radiation
Corona, prominence, solar flare, sunspot
The answer is a solar flare. :)
Answer:
Solar flare
Explanation:
what are the structures that allow for one-way blood flow through the heart
1) atria
2) ventricles
3) valves
4) capillaries
The answer is valves.
Heart valves have a particularly important role in keeping blood flow in a certain direction, allowing blood to flow from the atria to the ventricles and from the ventricles to the heart. Valves control the flow of blood through the heart by opening and closing each time the heart contracts. The valve's opening and closing functions are controlled by the pressure difference between the heart chambers and some muscles in the heart.
In case of dysfunction of one of these valves can be made an artificial heart valve or a mechanical type
The valves. They pump blood throughout the body and the transfer it to where you need it to go.
Explain this statement in your own words. “Photosynthesis is an essential process for all life on Earth because it is the set of reactions that makes glucose.” Enter your answer in the space provided.
The extinction of large prehistoric mammals is an example of blank?
The correct answer is - mass extinction.
The most dramatic extinction of large prehistoric mammals occurred when the ice age was ending. The climate suddenly changed dramatically, thus the environment changed very quickly in response. Also, there's indications that maybe a meteorite hit Greenland and caused dramatic changes in just few hours and days. The larger mammals were all very specialized animals, so even small changes in the environment are fatal for them, as seen in this case.
It is interesting though that only the megafauna died out, while the medium sized and smaller animals survived, largely because they are not very specialized but are much more opportunistic in their food choices. Some of the large mammals that died out in this period are the smilodon, homotherium, american lion, short-faced bear, mastodon, mammoth, American horses, American camels, giant sloth etc.
primitive anaerobic prokaryotic cells did not contain which of the following ?
A) mitochondria
B) DNA
C) cell membranes
D) RNA
I believe the answer is A
Answer:
A) mitochondria
Explanation:
Prokaryotic cells are the ones that lack membrane-bound well define the nucleus. They also lack the membrane-bound organelles such as mitochondria, Golgi apparatus, etc. These cells have a cell membrane and their DNA is present in the cytoplasm in the nucleoid region. So, a primitive anaerobic prokaryotic cell can not have mitochondria which are a characteristic feature of eukaryotes.
The hawaiian islands are an example of isolated volcanic islands. Which of the following best identifies how the Hawaiian islands are formed?
The hawaiian islands were formed by volcanic activity.
The Hawaiian Islands were formed by volcanic activity. The Hawaiian Emperor seamount chain is a well-known example of a large seamount and island chain created by hot-spot volcanism.
What is the BEST way to discover if there is water on the surface of Mars?
A)
Send space probes to Mars to study the surface
B)
Study the moon’s surface, since it is similar to that of Mars
C)
Observe the color of Mars to see if there are traces of blue
D)
Study meteorites on Earth, believed to have been rocks from Mars
It would be A send a space probes to mars to study the surface like the NASA's Mars Exploration Rover (MER) mission was a robotic space mission involving two Mars rovers, Spirit and Opportunity, exploring the planet Mars.
Answer:
A is correct!
Explanation:
what is most likely effect of nonnative of Burmese pythons outcompeting native species in the Florida Everglades
Answer:
In South Florida, the non-native Burmese pythons have developed a breeding population, and are one of the most issue creating invasive species in the Everglades National Park. With the local wildlife, the pythons compete for food that comprises birds, mammals, and other reptiles.
The declining of many mammals in the National Park is being associated with the growth of Burmese pythons. Of which the major impact has taken place in the remote southernmost parts of Everglades National Park, where pythons have got established a long time ago. It has been found that the populations of opossums, raccoons, and bobcats have declined by more than 90 percent in the region, while cottontail rabbits, marsh rabbits, and foxes have got vanished.
Answer:loss of biodiversity
Explanation:
Tides describe the regular rising and falling of the ocean water. Tides are caused by
1.the rotation of the moon on its axis
2.the gravitational pull of the sun and moon
3.large storm systems over oceans
4.earthquakes on the ocean floor
Answer: the gravitational pull of the wsun an moon
Explanation: correct answer
Which type of ecosystem needs biodiversity
Answer:
all of them.
Explanation:
biodiversity is good for any ecosystem.
Final answer:
Biodiversity is essential for all ecosystems, providing ecosystem services that include pollination, nutrient recycling, and the maintenance of soil health. It enables ecosystems to be productive and stable, ultimately supporting human life by providing food, medicinal resources, and clean water. Loss of biodiversity can lead to ecosystem degradation and threaten these vital services.
Explanation:
All ecosystems need biodiversity to maintain their health and stability. Biodiversity includes different levels such as species diversity, genetic diversity, and ecosystem diversity. High biodiversity, as seen in coral reefs and rainforests, provides numerous ecosystem services such as pollination, nutrient cycling, pest control, soil development, and maintenance. These ecosystems function effectively and support the vast array of life, including human life, by providing food sources, medicinal compounds, and clean water.
Biodiversity plays a critical role in nutrient cycling, where a variety of soil organisms contribute to nitrogen fixation and nutrient recycling. It enables plants to be pollinated and decomposers to recycle waste material. The genetic diversity within populations is crucial for their ability to adapt to changes, whether they be environmental shifts or emerging diseases.
The loss of biodiversity can lead to the degradation of these ecosystem services, making food production more expensive or even impossible, and reducing the soil productivity due to the loss of ecosystem interactions. Therefore, preserving biodiversity not only sustains our ecosystems but is vital for the long-term survival of humanity.
What does the breathing center in the brain do?
The medulla oblongata is the primary respiratory control center. Its main function is to send signals to the muscles that control respiration to cause breathing to occur. There are two regions in the medulla that control respiration: ... The dorsal respiratory group stimulates inspiratory movements
The medulla oblongata is the primary respiratory control center. Its main function is to send signals to the muscles that control respiration to cause breathing to occur. There are two regions in the medulla that control respiration: ... The dorsal respiratory group stimulates inspiratory movements
For the animal you choose, briefly describe it (physical description, habitat, etc.). Then, list all the organ systems of the animal. From this list, choose one organ system to describe in detail. Describe how the whole system works and functions. Include the function of every organ involved in that organ system. Use at least 500 words for your answer.
The Axolotl, or the Ambystoma mexicanum, is located in the class amphibia and in the family of Ambystomatidae. They are a critically endangered species that resides in Mexico. More specifically, the walking fish is native only to Lake Xochimilco and Lake Chalco in central Mexico. These unique fish have many attributes that makes it different from other amphibians and fish found in lakes.
Axolotls are 9 inch "walking fish" that have the amazing ability to regenerate limbs. They can regenerate any lost limb, including their head. This salamander has a soft bodies with small "horns" sprouting from the sides of their head. These horns are actually gills, meaning that instead of having their gills located inside of their pharynx the frills are set on the sides of their head.
The spots commonly found on an axolotl are not unusual, it's part of an extremely advanced system called the lateral line system. This system consists of electroreceptive ampullary organs and mechanoreceptive neuromasts organized into lines across the creature's body. This system is connected to the nervous system, and it allows the axolotl to sense movement and vibrations in the water.
This can get you started, I didn't want to make it too easy on you! :) It has I believe 126 words, I hope you find it useful!
1. In your food chain above, explain why there’s an arrow pointing from your decomposer back to the plants.
2. Compare producers and consumers in an ecosystem. (what do they have in common)
3. Contrast producers and consumers in an ecosystem. (what makes them different)
3. Producers are always plants and consumers are always animals. Producers also make there own food, and consumers hunt and eat theirs
ANSWER:
-the arrow is pointing on where the energy is going.
-the thing they have in common is that they both need food or energy to live, and they need each other to survive. (producers and consumers)
-producers and consumers have in contrast is that plants make their own food by photosynthesis while animals hunt their own food (cuz they cant make their own food that's why their called consumers they consume off other animals where plants produce their own.)
~batmans wife
Decomposers are organisms that A. use sunlight to produce food. B. can only be seen using a microscope. C. feed upon living organisms. D. break down matter from dead plants and animals
Answer:
c...
Explanation:
Organisms are classified as eukaryotes or prokaryotes based on their basic body structure. Which of the following is true of organisms and the type of genetic information they contain?
Question 9 options:
Both eukaryotes and prokaryotes contain DNA enclosed in membrane-bound nuclei
Both eukaryotes and prokaryotes contain DNA, but prokaryotes typically only have a single, circular chromosome
All eukaryotes and most prokaryotes contain DNA, but Archaebacteria only contain RNA
All eukaryotes contain DNA, and all prokaryotes contain only RNA
The flowering plant known as the snapdragon produces white, yellow, and crimson flowers. When a snapdragon that is homozygous for the gene for white flowers is crossed with a crimson snapdragon that is homozygous for the gene for crimson flowers, heterozygous offspring with pink flowers are produced. Which of the following terms correctly describes this phenomenon?
Question 17 options:
Mendelian inheritance
polygenic inheritance
pleiotropy
incomplete dominance
Punctuated equilibrium and gradualism are both models for evolutionary change, but they are very different theories. Which of the following statements is true of the evolutionary theory known as gradualism?
Question 19 options:
Several closely related species from isolated populations evolve rapidly
Fossils showing intermediate changes will not necessarily be found
Evolution occurs in spurts of rapid change
Speciation occurs gradually
Question 9: The right answer is B (the second one)
The two major types of cellular, prokaryotic and eukaryotic organisms.
* Prokaryotes are identified with bacteria: most live as single-cell organisms but some bacteria associate in a chain. Prokaryotes have their DNA in the cytoplasm of the cell.
* Eukaryotes have a nucleus, a compartment separated from the rest of the cellular contents, which contains the DNA.
Question 17: The right answer is incomplete dominance.
Incomplete-dominated genetic action is a type of genetic action where one of the alleles outweighs the other in the production of qualitative phenotypes, without the dominant allele completely overshadowing the heterozygous recessive allele. Two copies of the dominant allele are required to produce the dominant phenotype. Since the recessive allele can perform its function at the heterozygous stage, this genotype produces a phenotype (the heterozygous phenotype) which differs little from the dominant phenotype.
In our case the phenomenon of incomplete dominance gave a pink color (between white and crimson) instead of crimson color when the white flowering plant was mixed with the crimson flower plant.
Question 19: The right answer is Speciation occurs gradually.
Speciation is a term that means the formation of new species.
Gradualism is an evolutionary theory according to which new species occur by gradual transformation of ancestral species, by evolution.
These transformations are slow and regular. Otherwise expressed: evolutionary theory according to which speciation is gradually effected by small successive changes over long periods.
Chang described two substances which participate in photosynthesis.
Substance A: Helps plants absorb sunlight.
Substance B: Gas formed with glucose.
Which statement is correct?
- Substance A is chlorophyll and Substance B is oxygen.
- Substance A is oxygen and Substance B is carbon dioxide.
- Substance A is glucose and Substance B is carbon dioxide.
- Substance A is carbon dioxide and Substance B is oxygen.
Answer:
- Substance A is chlorophyll and Substance B is oxygen.
Explanation:
Chlorophyll is the green coloring matter responsible for the green color of a leaf.
It helps in trapping sunlight for the purpose of photosynthesis.
In the event of photosynthesis, carbon dioxide is used, the gas produced is oxygen.
This makes the right choice be the first option.
What information does RNA code for?
A) DNA replication
B) protein synthesis
C) polypeptide building
D) gene production
Answer:
B) protein synthesis
Explanation:
An RNA codes for protein synthesis. A triplet of nucleotides/bases in RNA helps in adding an amino acid into the protein strand. This triplet of nucleotides is knwon as codon and helps in adding amino acid which is specific to it. For example, AUG triplet codes for methionine while UGG codes for tryptophan. The amino acids get added in protein strand unless a stop codon is reached. Triplets UAA, UAG & UGA are stop codons. Here it may be noted that initially a polypeptide chain is synthesized by RNA but the ultimate goal of making that polypeptide chain is protein synthesis.
Answer: The correct answer is -
B) protein synthesis.
Explanation:
RNA (ribonucleic acid) contains codon (a sequence of three nucleotides that code for particular amino acid) sequences that help in the process of protien synthesis (translation).
The genetic information is transferred particularly from mRNA to proteins at the site called ribosomes.
tRNA (transfer RNA) molecule arrives at ribosome with specific amino acid according to the codon present in the mRNA.
In this way, a long chain of amino acids is assembled to form proteins.
Thus, option B) is the right answer.
What is condensation
Condensation is the phase change from gas to liquid. You can see condensation in the real world if you have a very cold drink. A bottle of water filled with ice will attract water vapor from the air, and it will condensate around the bottle because the temperature is lower, which facilitates the phase change. The outside of the bottle will contain a bunch of water droplets.
Hope this helps!!
Condensation is apart of the water cycle and it is when water vapor turns into a liquid for example when it’s humid out and you leave your water cup out in the sun it will form water droplets on the cup and that is an example of condensation
Approximately how many islands make up the country of Japan?
30
300
3,000
30,000
3,000 islands make up Japan.
3,000 islands together make up the country of Japan.
The correct option is C.
What is Japan?Japan is an island country present in East Asia.
On the basis of population, Japan comes in eleventh number in the world.
The temperature of Japan is temperate.
In the Global Peace Index 2020, Japan is the second-highest-ranking Asian country.
Thus, the correct option is C, 3000 islands.
Learn more about Japan, here:
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Need help (picture) Thanks
i believe that 2 is the answer
Which organisms undergo photosynthesis?
(on the bottom is a palm tree)
Answer:
Palm Tree with sproutlings
Explanation:
A location in the northern hemisphere is currently experiencing equal sunlight as another location in the southern hemisphere. Which of the following could be the current month?
August
January
June
March
I need an explanation please
Hi there!
The answer is: March.
Because it's daylight savings so there would be equal sunlight in the Northern and Southern Hemisphere's.
Answer:
The answer is March.
Explanation:
The current month is March. This is called the March equinox.
A location in the northern hemisphere is currently experiencing equal sunlight as another location in the southern hemisphere. This is called the March equinox.
During the March equinox, the Sun crosses the celestial equator from south to north.
This happens on March 19, 20, or 21 every year.
What part of the dna molecule contains an organisms genetic information or code
The nucleus is the part of the cell that contains most of the genetic information found in cells. Source-www.refrence.com
The part of the DNA molecule that contains an organism's genetic information or code is the linear sequence of nucleotides.
What is genetic information?Information regarding an individual's genetic testing and the genetic tests of an individual's family members, as well as information concerning the manifestation of a disease or disorder in an individual's family members, is included in genetic information.
The linear sequence of nucleotides in DNA contains genetic information. Each DNA molecule is a double helix composed of two complementary strands of nucleotides bound together by hydrogen bonds created by G-C and A-T base pairs.
Each DNA molecule is a double helix composed of two complementary strands of nucleotides bound together by hydrogen bonds created by G-C and A-T base pairs.
Therefore, the linear sequence of nucleotides in DNA contains genetic information.
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Is 28.5 cm tall qualitative or quantitative data
28.5 cm tall is quantitative data
how does the composition of a water molecule affect its charge?
a) it makes the molecule nonpolar
b) it makes the molecule a positive ion
c) it makes the molecule polar
d) it makes the molecule a negative ion
C. Water is a polar molecule.
C) it makes the molecule polar.
The water molecule affects its charge by making it uneven. In the combination of hydrogen and oxygen, which makes up water, the oxygen atom has a slight negative charge and the hydrogen atoms have a slight positive charge. This gives the molecule a neutral charge as a whole, but it also means that water is a polar molecule.