Answer: The model, which is air tight, represents the thorax, and air is only able to enter via the glass tube which represents the trachea.
As the rubber sheet is pulled down the volume of the jar increases, the pressure therefore decreases and air is drawn in through the glass tube inflating the balloons, which represent the lungs.
There are a number of similarities and differences between the model and the actual respiratory system.
Glass tube/tracheaAllows air to pass through, splits into twoGlass is rigid and inflexible unlike the cartilage bound trachea
Bell jar/chest cavityAir tightUnable to move, the ribs can move up and out to increase the volume of the thorax
Balloons/lungsCan inflate and deflate, are elastic like the alveoliThe balloons are large open spaces whereas the lungs are made up of millions of individual elastic alveoli
Rubber sheet/diaphragmCan be domed up to decrease the volume in the jarThe diaphragm only flattens, it is not pulled downwards like the rubber sheet.
The glass jar fail to function as a rib cage in the breathing mechanism as a
result of it being fixed.
The rib cage helps to protect the lungs which is the main organ for
respiration. During inhalation, the lungs bring in oxygen and give out
carbondioxide during exhalation.
The rib cage moves up and out during inhalation and moves down and in
during exhalation in animals. The glass jar in the experiment is however fixed and exhibits no movement which makes it fail its function in the breathing mechanism
Read more on https://brainly.com/question/21840755
Use the article, Wolf Turf: A Glimpse at 20 Years of Wolf spacial Ecology in Yellowstone. Explain what is happening now? What changes occurred since the reintroduction of the wolves in 1996?
Answer:
Wolves decreases deer population and increases vegetation.
Explanation:
The deer population decreases due to the reintroduction of wolves because wolves kill and feed on deer which automatically decreases the population of deer in the Yellowstone. Wolves are the top predator which controls the population of herbivores such as deer or elk etc that eats all vegetation due to absence of wolves so the introduction of wolves increases vegetation also.
A deer is born normal, but UV rays cause a mutation in its retina (part of the eyeball). Which of the following statements is least likely to be true?
Group of answer choices
The mutation may interfere with the structure of the retinal cell
The mutation may be passed on to the offspring of the deer
The mutational may cause retinal cancer
The mutation may interfere with the function of the retinal cell
At which trophic level do urchins live?
Answer:
Sea urchins are powerful primary consumers in kelp forests. These small herbivores eat dozens of kilograms (pounds) of giant kelp every day. Secondary consumers eat herbivores. They are at the third trophic level.
Explanation:
Answer:
They are at the third trophic level.
Explanation:
Sea urchins are powerful primary consumers in kelp forests. These small herbivores eat dozens of kilograms (pounds) of giant kelp every day. Secondary consumers eat herbivores.
What’s homeostasis??? help a sister out
Answer:
The ability of our bodies to maintain a stable internal environment.
Explanation:
Answer:
homeostasis.
Explanation:
is the state of steady internal, physical, and chemical conditions maintained by living systems.
Who used xrays to take pictures of DNA
About how long does it take Earth to complete one revolution around the Sun?
1 year
14 days
24 hours
27.3 days
Pwease help I’m timed =)
Answer:
365 days so 1 whole year
Explanation:
i,m correct promise
i'm a genius when it comes to science
can i have a brainlist pwease
Which statement best explains the impact of favorable oceanic conditions on human behavior?
Boating activities decrease along shorelines.
Families move away from shorelines.
People spend less time playing at the beach.
Recreational water sports increase on beaches.
The impact of favorable oceanic conditions on human behavior are the Recreational water sports that increase on beaches.
What is the effect of favourable oceanic conditions?The favorable oceanic conditions has a great impact on human behavior i.e. the increase of Recreational water sports on beaches because people go to the places where the temperature is favourable and suitable.
So we can conclude that the impact of favorable oceanic conditions on human behavior are the Recreational water sports that increase on beaches.
Learn more about ocean here: https://brainly.com/question/1145641
#SPJ1
Answer:
Familys move away from shorelines
A decrease in food resources can decrease A.Pollution B.Habitat size C.Biodiversity d.Water resources
Answer:C biodiversity
Explanation:
A decrease in food resources can decrease biodiversity. Therefore, option C is correct.
What is biodiversity?Biodiversity refers to the variety of life on Earth, including the number of different species of plants, animals, and microorganisms, as well as the genetic diversity within those species and the diversity of ecosystems in which they live.
Biodiversity is important because it provides many benefits to humans and the environment, such as providing food, medicine, clean air, and water, and regulating the Earth's climate.
Biodiversity is under threat due to various human activities, such as habitat destruction, over-exploitation of natural resources, pollution, and climate change. Thus, a decrease in food resources can decrease biodiversity. Therefore, option C is correct.
Learn more about biodiversity, here:
https://brainly.com/question/23101752
#SPJ2
Choose all of the abiotic factors *
Captionless Image
water
grass
bees
temperature
producers and consumers
zebras and wildebeests
polar bears and arctic foxes
shrimp and krill
sand and soil
rocks
Answer:
Water
grass
temperature
sand soil
rocks
What are abiotic factors?
The definition of abiotic Is a non living part of the ecosystem that make up our environment for example Water and light!All of these factors work together to make up what we have today!
Why are they important?
They are important because with out these we would not be living because for example water is a abiotic factor and we can't live with out water!
Hope this helps!
-Tobie The dog
How does the cell membrane use the atp produced by the cell’s mitochondria
Explanation:
mitochondria, using oxygen available within the cell convert chemical energy from food in the cell to energy in a form usable to the host cell. Nadh is then used by enzymes embedded in the mitochondria inner membrane to generate a triphosphate ATP in ATP the energy is stored in the form of chemical bonds.
Answer:
Mitochondria, using oxygen available within the cell convert chemical energy from food in the cell to energy in a form usable to the host cell. ... NADH is then used by enzymes embedded in the mitochondrial inner membrane to generate adenosine triphosphate (ATP). In ATP the energy is stored in the form of chemical bonds.
Explanation:
Which of the following describes a relationship in which both organisms depend on each other and both benefit?
Predator-prey relationship
Mutualism
Parasitism
Competition
Answer:
Mutualism
Explanation:
Answer:
I don’t know I’m just doing this for points
Explanation:
Select a location within each of the following biomes and fill in the missing information on the table.
What is the Latitude and Species Richness of the tundra? (look at attachments)
BioInteractive Biome Explorer
Answer:
tundra is 1,700,
Explanation:
The biodiversity of the tundras is low: 1,700 species of flora and only 48 land mammals can be found, although thousands of insects and birds migrate there each year for the marshes. There are few species with large populations.
The equations represent chemical reactions that take place in living organisms.Which reaction releases the greatest amount of energy? *
carbon dioxide + water → glucose + oxygen
glucose + oxygen → carbon dioxide + water
glucose → alcohol + carbon dioxide
glucose → lactic acid
Answer:
second one
Explanation:
the second one is aerobic respiration which creates alot of energy
How can a person's muscle cells have the same exact DNA sequences as their nerve cells even though they look and perform completely
A. The two different cells become mutated.
B. The genes expressed in each cell are different.
C. They actually have different DNA in the two types of cells.
D. The genome of the different cells changes
A person's muscle cells have the same exact DNA sequences as their nerve cells even though they look and perform completely differently due to the expression of different genes in each cell. Thus, the correct option for this question is B.
What are Muscle cells?Muscle cells may be defined as those cells that have the capability to shorten or contract in order to produce movement of the body parts. These types of cells typically facilitate the momentum of the whole body.
Each cell of the living organism including humans has the ability to turn on or off the functions of those genes which are required for their function or not. Due to this mechanism, the nerve cell synthesizes different genes with respect to the muscle cells irrespective of the DNA sequence.
Therefore, the genes expressed in each cell are different is a correct option with respect to this question. Thus, the correct option for this question is B.
To learn more about Gene expression, refer to the link:
https://brainly.com/question/20682055
#SPJ6
Mikah is creating a poster for her science class to illustrate the major factors responsible for reducing the amount of global biodiversity on the Earth. Which of the following should most likely be included on her poster?
A.
the observation of wild organisms by scientists
B.
the destruction of plant and animal habitats by humans
C.
the wise management of natural resources by humans
what does a karyotype show?
Answer:
The Answer is B
Explanation:
A karyotype test looks at the size, shape, and number of your chromosomes. Chromosomes are the parts of your cells that contain your genes. Genes are parts of DNA passed down from your mother and father. They carry information that determines your unique traits, such as height and eye color.
A karyotype deals with visual examination of the complete set of chromosomes and is used to identify genetic abnormalities. The answer is the first option.
The Karyotype is the complete set of an individual's chromosomes and can be used to identify missing, extra, abnormal chromosomes etc.
DNA fingerprinting or DNA sequencing can be used to determine the relationships among family members. DNA fingerprinting involves matching bands obtained due to differences in VNTR inheritance. Sequencing of the entire genome can be used to identify more distant relations also and can inform regarding the specifics of the inheritance.
A pedigree analysis that tracks a trait through a family can show the carriers of a genetic disorder in the family and its inheritance pattern etc.
A genemap can show the alleles on the chromosome. This is done through procedures like chromosome walking.
The karyotype gives us an insight on the morphological attributes of the complete set of chromosomes. This information can indicate the presence of genetic abnormalities and cannot indicate the relationships among family, indicate carriers of a disease or the alleles of the chromosome.
In conclusion it can be said that from a karyotype, genetic abnormalities can be gleaned.
To learn more about karyotype click here:
https://brainly.com/question/32520036
#SPJ6
Does a Spotted eagle ray molt as it grows?
Answer:
All rays are cartilaginous fish similar to sharks and dogfish and therefore do not molt.
Explanation:
Spotted eagle rays are viviparous, indicating they deliver live birth. Females are gestating for around one year before producing birth to about two-four adolescents which are seventeen to thirty-five cm large. Spotted eagle rays develop at the period of four to six years old. Spotted Eagle Rays survive for around fifteen-twenty years.
What color(s)of light will drive photosynthesis by green plan most efficiently?
A) red only
B)blue only
C.green only
D.red and blue
E.yellows only
At low light levels, green leaves are most efficient at photosynthesis. But well yeah, in sunny days, red light will work the same as green light
Where is DNA located in the cell?
A. The nucleus
B. The cytoplasm
C. The Endoplasmic Reticulum
D. The Golgi Apparatus
Answer:
A. The nucleus
Explanation:
Hope this helps.
How does the H+ concentration create ATP
Answer:
Low pH increases the concentration of base causing mitochondria to pump out H+ to the inter membrane space leading to ATP production. The high external acid concentration creates an increase in H+ in the inter membrane space causing an increased in ATP production by ATP synthetase.
AB->A+B+energy Which best describes this reaction A.)it's an anabolic reaction B.)it's an endergonic reaction C.)It's a photosynthesis reaction D.) It's A catabolic reaction
Answer: The option that best describes the reaction is D (It's a catabolic reaction).
Explanation:
Both plants and animals use the chemical energy in food to carry out the activities that are necessary for living,for growth and reproduction. These are metabolic processes which are divided into:
--> Anabolic process and
--> Catabolic process.
The Catabolic process involves the BREAKDOWN of large molecules with the release of energy. From the question:
AB -> A+ B+ energy
A typical example of a catabolic process that occurs in the body is cellular respiration which is the source of energy for the many anabolic processes that occur in a living organism. During a catabolic process (respiration),
--> stored chemical energy is released for doing work;
--> heat energy is given off;
--> large organic molecules are broken down into simple molecules.
The best describe option for the reaction AB → A+B+energy is It's a catabolic reaction.
What is a catabolic reaction?In catabolic reaction is the reaction, breakdown of large molecules is happens and energy is released.
The molecules such as glucose, protein, carbohydrates.
An example is the process of digestion is a catabolic process.
The metabolism process of the body completes in two process
Anabolic process
Catabolic process.
Thus, the correct option is D, It's a catabolic reaction.
Learn more about catabolic reaction, here:
https://brainly.com/question/15253938
Pls help! I am being timed!!!!!
Answer:
the second one :)
Explanation:
Can someone help me please ASAP!!! HELP PLEASE I NEED HELP PLEASE HELP ME PLEASE
Answer:
constantly sliding all over each other
Which statement best describes the role of tRNA in protein synthesis?
PLEASE HELPP :((((
The statement that best describes the role of tRNA in protein synthesis is copying the genetic code from the DNA molecule and carrying it to the ribosomes.
What do you mean by Protein synthesis?Protein synthesis may be defined as a process through which various proteins are produced in order to stimulate cellular processes.
tRNA helps in analyzing an mRNA sequence into a protein. It functions at different sites in the ribosomes at the time of translation. It is an adaptor molecule.
Therefore, the statement that best describes the role of tRNA in protein synthesis is copying the genetic code from the DNA molecule and carrying it to the ribosomes.
To learn more about Protein synthesis, refer to the link:
https://brainly.com/question/884041
#SPJ2
what do african birds eat and pic
Answer:
if these mixtures are feed as only source of food African grey parrots become ill and ultimately die.
not sure about the answer but see if this is correct.
what is meant by heridity?
Answer:
Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents
We will soon exceed earth’s carrying capacity
Answer:
Wait like actually? Do we need to get to Mars?
helppppppp imma get a F
Answer:
1. Hot water: Gas, Ice cube: Solid
2. (I can't answer this one, I didn't do the activity)
3. Some parts of the world may never see naturally occurring solid water (ice), this probably due to a tropical/desert climate.
Answer and i will give you brainly
Answer: it would block your airways to stop you from breathing
Explanation:
its easy just think if your noise was stuffy it would be hard to breath did a 6th grader really have to tell you that
Make a strand of DNA using the following:
5’--------3’
3’--------5’
Answer:
5 aaatttccccgcaaaa 3'
3' tttaaaggggcgtttt 5'
Explanation: