When most main sequence stars exhaust their hydrogen supply, they become giants. Yet on the diagram, there are not
many stars between the main sequence and the giants. What would explain this fact?

Answers

Answer 1

Answer:

Main sequence stars change into giant star by exhausting their hydrogen supply.

Explanation:

This fact explain that main sequence stars change into giant star by exhausting their hydrogen supply. A main sequence star burns due to the presence of hydrogen in its core, because of this burning the main sequence reaching the end of its life cycle. Then the pressure of fusion reaction provides an outward thrust that expands the star many times larger than its original size, that leads to the formation of a red giant.

Answer 2

Answer:

As soon as the hydrogen is used up, the star turns to a giant very quickly, spending little time in the transition.

Explanation:

plato


Related Questions

What is meant by a neutral symbiotic
relationship?
A. At least one organism is harmed.
B. At least one organism gains.
C. At least one organism is unaffected.

Answers

I think answer is option B.

Assuming that a person going to community college can't afford to go to a four-year college is an example of ) a generalization. b) discrimination. O c) a stereotype. O d) tolerance.

Answers

stereotype cause ppl think that community college is for ppl w less money typically

The fact that only your liver cells produce liver enzyme and not your skin cells, which contain the same DNA, can be explained by O PCR O gene expression O gene flow NA​

Answers

Answer:

Gene expression

Explanation:

Gene expression is the process in which cells (usually eukaryotic) have niches , meaning that one set of genes is expressed in once cell and different ones in another

explain how the various specialiesed cells are modified to Cary out to their function 20mark​

Answers

Sperm cell; has acrosome containing lytic enzymes; that digest the egg membranes for penetration during fertilization; has a long tail; containing numerous mitochondria; to generate maximum energy for propulsion/swimming in the vaginal fluid after ejaculation; Red blood cells; are flattened, circular/spherical biconcave in shape; to increase the surface area for packaging of haemoglobin; has haemoglobin; that combines with respiratory gases; for transport to and from body tissues; White blood cells; are amoeboid in shape hence able to change shape; to engulf pathogens through phagocytosis; lymphocytes produce antibodies to fight pathogens; Nerve cell; has extensions/dentrites; to receive and send information for sensation; Ciliated epithelial cells; have cilia for propulsion of mucus that traps dust and micro-organisms in the respiratory tract; Muscle cells; elongated, striated and contractile; to bring about movement; Plant cells: Guard cells; bean-shaped; to regulate the size of the stomata allowing gaseous exchange; and control water loss; has chloroplasts with chlorophyll; for photosynthesis; Root hair cell; elongated; thin-walled; with dense cytoplasm for absorption of water and mineral salts; Epidermal cell; thin; for protection of inner tissues from mechanical and micro-organism attack; Palisade cell; contains numerous chloroplasts with chlorophyll; for photosynthesis; elongated; to increase surface area for trapping maximum amounts of light energy; Meristematic cell; thinwalled; with dense cytoplasm; for primary and secondary growth

what are the four postulates of "the theory of inheritance of acquired characters”?​

Answers

Summary of four postulates of the theory of inheritance of acquired characteristics:

1. Living organisms or their component parts tend to increase in size.

2. Production of new organ is resulted from a new need.

3. Continued use of an organ makes it more developed, while disuse of an organ results in degeneration.

4. Acquired characters (or modifications) developed by individuals during their own lifetime are inheritable and accumulate over a period of time resulting a new species.

Explanation:

1. New needs:

Every living organism is found in some kind of environment. The changes in the environmental factors like light, temperature, medium, food, air etc. or migration of animal lead to the origin of new needs in the living organisms, especially animals. To fulfill these new needs, the living organisms have to exert special efforts like the changes in habits or behaviour.

2. Use and disuse of organs:

The new habits involve the greater use of certain organs to meet new needs, and the disuse or lesser use of certain other organs which are of no use in new conditions. This use and disuse of organs greatly affect the form, structure and functioning of the organs.

Continuous and extra use of organs make them more efficient while the continued disuse of some other organs lead to their degeneration and ultimate disappearance. So, Lamarckism is also called “Theory of use and disuse of organs.”

So the organism acquires certain new characters due to direct or indirect environmental effects during its own life span and are called Acquired or adaptive characters.

3. Inheritance of acquired characters:

Lamarck believed that acquired characters are inheritable and are transmitted to the offsprings so that these are born fit to face the changed environmental conditions and the chances of their survival are increased.

4. Speciation:

Lamarck believed that in every generation, new characters are acquired and transmitted to next generation, so that new characters accumulate generation after generation. After a number of generations, a new species is formed.

supply the endings of the following ranks:
division,class,order,family​

Answers

Answer:

I am not sure what you are asking for, but from my understanding I think you are telling me to put it in order

Explanation:

Order, Class, Family, Division

Hope this helps

* Explain about monohybrid and diyhybrib cross with the help of punnet square​

Answers

In a monohybrid cross, such as the one in Figure below, the Punnett square shows every possible combination when combining one maternal (mother) allele with one paternal (father) allele. In this example, both organisms are heterozygous for flower color Bb (purple). Both plants produce gametes that contain both the B and b alleles. The probability of any single offspring showing the dominant trait is 3:1, or 75%. To develop a Punnett square, possible combinations of alleles in a gamete are placed on the top and left side of a square. For a monohybrid cross (Table below), individual alleles are used, whereas for a dihybrid cross (Table below), pairs of alleles are used. A Punnett square for a monohybrid cross is divided into four squares, whereas a Punnett square for a dihybrid cross is divided into 16 squares. How many boxes would a Punnett square need if three traits were examined? The squares are filled in with the possible combinations of alleles formed when gametes combine, such as in a zygote.

Match the terms in column B to the descriptions in column A.

Column A:

1. Connects the larynx to the main bronchi
2. Includes terminal and respiratory as subtypes
3. Food passageway posterior to the trachea
4. Covers the glottis during swallowing of food
5. Contains the vocal cords
6. Indentation on the lung where the lung root structures enter and exit
7. Pleural layer lining the walls of the thorax
8. Site from which oxygen enters the pulmonary blood
9. Connects the middle ear to the nasopharynx
10. Pleural layer in contact with the surface of the lung
11. Increases air turbulence in the nasal cavity
12. Separates the oral cavity from the nasal cavity

Column B:
a. alveolus
b. bronchiole
c. conchae
d. epiglottis
e. esophagus
f. hilum
g. larynx
h. palate
i. pharyngotympanic tube
j. parietal pleura
k. trachea
l. visceral pleura

Answers

Answer:

1. Connects the larynx to the main bronchi k. trachea

2. Includes terminal and respiratory as subtypes b. bronchiole

3. Food passageway posterior to the trachea. e. esophagus

4. Covers the glottis during swallowing of food d. epiglottis

5. Contains the vocal cords g. larynx

6. Indentation on the lung where the lung root structures enter and exit f. hilum

7. Pleural layer lining the walls of the thorax j. parietal pleura

8. Site from which oxygen enters the pulmonary blood a. alveolus

9. Connects the middle ear to the nasopharynx. i. pharyngotympanic tube

10. Pleural layer in contact with the surface of the lung l. visceral pleura

11. Increases air turbulence in the nasal cavity c. conchae

12. Separates the oral cavity from the nasal cavity h. palate

Explanation:

1. The trachea is between the main bronchi and the larynx. It has semicircular rings of cartilage. The function of this organ is to conduct the air from the larynx to the primary/main bronchi.

2. After the primary (main), secondary, and tertiary bronchi, the terminal and the respiratory bronchioles come. They also conduct the air towards the alveoli so that the oxygen can enter the blood. The diameter of the bronchi terminal is smaller than the bronchi, and the diameter of the respiratory bronchi is smaller than the previous ones.

3 and 4. The esophagus is not part of the respiratory system. It is a tube that belongs to the digestive system since food has to pass through it to go to the stomach. The esophagus is posterior to the trachea, and the epiglottis closes the entrance to the larynx when we swallow to stop food from going to the lungs.

5. The vocal folds are in the larynx. This one is between the trachea and the pharynx. There are two types of vocal folds, the true and the false vocal folds. Both of them vibrate when air passes through them, allowing us to speak and make different tones.

6. The hilum is the lungs section where the bronchus, the pulmonary artery, and the pulmonary vein enter the lung. It is an indention that is in the middle part of the lungs.

7 and 10. The pleura has two sides, the parietal one and the visceral one. The first one is in contact with the lungs and the second one with the thorax's walls. Between them, there is a space called the pleural cavity. The cavity has fluid that allows the movement of the two pleurae. As a result, the lungs can move and fill with air.

8. After the respiratory bronchioles, we have the alveolar duct. The alveolar ducts lead to alveolar sacs. The alveolar sacs has the alveolus. They are thin walls that are in contact with capillaries. When the air is there, the oxygen passes through the thin walls. Then it goes through the capillaries' walls and into the blood.

9. The pharyngotympanic tube is also known as the Eustachian tube. It connects the middle ear to the nasopharynx. Its function is to regulate the pressure in the ear.

11. The conchae are in the nasal cavity. They are three projections in the nasal cavity, the inferior one, the middle one, and the superior. Their function is to increase the surface of the nasal cavity so that more air can enter with every inspiration. As they are projections, they modify the laminar airflow producing a turbulent flow.

12. The palate is between the nasal cavity and the oral cavity. It has two parts, the soft palate, and the hard palate. The palate helps in the production of certain sounds and divides the nasal cavity from the mouth.

Put the following biological structures in the correct order of organization, from smallest to largest:
A. Gills, pillar cells, lamellae, fish, respiratory system
B. Pillar cells, lamellae, gills, respiratory system, fish
C. Pillar cells, lamellae, gills, respiratory system, cat
D. Lamellae, gills, respiratory system, fish, pillar cells

Answers

Answer:

B

Explanation:

Cats Dont have gills so rule out C. The body has to be the end so it would be B starting from Pillar cells to fish

Biological structures are arranged based on the level of the organization. The order of organization from smallest to largest is pillar cells, lamellae, gills, respiratory system, and fish. Thus, option B is correct.

What is the level of organization?

The level of organization is the arrangement of the structures based on the level of complexity. It starts from the most simple to the most complex structures. It starts with an atom and ends in an ecosystem.

Pillar cells are the simplest level that comprises the fundamental unit made of molecules. They together make the tissues or the lamellae in the fish. The tissues or the lamellae group together to make the organ and gills.

The gills combines with the other organs to make the organ system like the respiratory system, which together with various organ system makes the fish the makes a complete organism.

Therefore, the order of the organization starts with pillar cells and ends at fish.

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Which organelle is labeled A?

Answers

Is their a diagram or picture?

Salts and sugars work to preserve food by creating a

Answers

Hypertonic environment

Starch and protein digestion in a single stomach?

Answers

Answer:

Explanation: Protein digestion occurs in the stomach and the duodenum through the action of three main enzymes: pepsin, secreted by the stomach, and trypsin and chymotrypsin, secreted by the pancreas. During carbohydrate digestion the bonds between glucose molecules are broken by salivary and pancreatic amylase.

For each of the genotypes (AA,Aa or aa) below determine what the phenotype would be. Purple flowers are dominant to white flowers.

PP_____ Pp_____ pp_____

Answers

Answer:

PP and Pp are purple flowers. pp is white flowers.

Explanation:

Capital P is the dominant gene, while lowercase p is the recessive gene.

The project that you are working on was initiated in response to the growing threat of antibiotic resistance in both hospital and community settings. Even in the early discovery and development phase, it is important to think ahead to try to minimize the likelihood that bacteria will be able to evolve resistance to your new drug. Understanding how resistance emerges is an essential part of this process. What is true regarding the evolution of antibiotic resistance in bacteria?

Answers

Answer:

Decrease the effectiveness of this process.

Explanation:

Resistance emerges is an essential part of this process because this resistance causes decrease in the effectiveness of the drugs. If this resistance is not a part of this process, the microbes get resistance from the drugs which  leads to lower the effectiveness of antimicrobial disease or infection so that's why resistance is considered as the essential part of this process of project.

Read the information below then answer the questions which follow:
To grow, plants require water. They cannot get this water unless it is available in the soil. Plants
obtain water from the soil through their roots. It then passes up the stem and to the leaves and
flowers. The plant does not take all the water available in the soil. Much of the remaining water
evaporates into the surrounding air.
In an experiment, a stem which contained several flowers were placed in a beaker of water
containing red ink.
QUESTION 1
(1 mark)
What is the purpose of the experiment?​

Answers

Answer:

I believe the experiment was too see if the flowers that would grow from the stem would turn out to be red in color. (Which is the reason they put red ink.)

(hope this helped :P)

#Impossible......!!!!!!!!!!
.
.
What is ecosystem???? explain!!!!! ​

Answers

it is where plants, animals and other organisms work together to create life as it is

Name the two layers that make up the skin, and identify a function for each layer.

Answers

Dermis and epidermis
Epidermis help us to protect the inner organs and also the dermis
The epidermis, the outermost layer of skin, provides a waterproof barrier and creates our skin tone.

The dermis, beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands.

The outbreak has rebounded in at least 30 US states in recent weeks, with the three most populous states -- California, Texas and Florida -- seeing a surge in new cases, with the highest daily number of new cases since the outbreak began.

Answers

Answer:

whats the question then?

Explanation:

a report conclusion on waste management​

Answers

just some up everything you wrote into one paragraph

How do bacteria develop resistance to drugs

Answers

Answer: Bacteria gain resistance to drugs because of mutations (permanent and random changes to their DNA) which means they have changed DNA coding, giving them the ability to resist the drug fighting them off. As a result, they survive and reproduce. Over time, more and more bacteria are generated as the DNA code for resistance is passed on over generations. This results in bacteria having the ability to resist drugs. This is particularly prevalent with antibiotics.

Bacteria develop drug resistance through genetic mutations, acquisition of resistance genes, production of inactivating enzymes, efflux pumps, and biofilm formation.

Bacteria can develop resistance to drugs through several mechanisms. One common way is through genetic mutations or acquisition of resistance genes. Mutations can occur in the bacterial DNA, leading to changes in the target site of the drug, rendering it ineffective. Resistance genes can be transferred between bacteria through horizontal gene transfer, allowing the recipient bacteria to acquire resistance traits.

Another mechanism is the production of enzymes that can inactivate the drug. Bacteria can produce enzymes, such as beta-lactamases, that break down antibiotics like penicillin, preventing them from functioning properly. Bacteria can develop efflux pumps that actively pump out drugs from their cells, reducing their concentration and effectiveness. This mechanism helps bacteria evade the lethal effects of antibiotics. Biofilm formation provides a protective environment for bacteria, making them less susceptible to drugs and immune system attacks.

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The correct question is:

How do bacteria develop resistance to drugs?

Histones are essentially identical in sequence/structure in all eukaryotic organisms from yeast to plants to animals. What does this say about the biophysical properties of DNA-packaging and the evolution of eukaryotic organisms

Answers

Answer:

It indicates that core histone genes were present in the last common ancestor of yeasts, plants, and animals

Explanation:

Histones are highly basic proteins that can strongly interact with DNA, which is packaged into nucleosomes, the basic structural and functional unit of chromatin. Each nucleosome is composed of approximately 147 base pairs of DNA wrapped around a core of eight histone proteins (two copies of four types of histones H3, H4, H2A, H2B). These core histones are evolutionarily conserved across eukaryotic kingdoms in terms of sequence and structure. Therefore, DNA-packaging into nucleosomes is considered a constraint for the evolution of core histones. Moreover, the presence of conserved core histones in eukaryotic kingdoms (e.g., yeast, plant, and animal kingdoms) is strong evidence that histone-mediated DNA packaging was presumably present in the last common ancestor of eukaryotic genomes.

Long strands of genetic information are stored in ________. A. Enzymes B. Adenine C. Chromosomes D. Mutations

Answers

The genetic information is the encoded proteins passed through hereditary. The genetic information is stored in the chromosomes of the cel. Thus, option C is correct.

What are chromosomes?

Chromosomes are the hereditary unit of an organism that passes from the parent cell through cell division and reproduction to the daughter cells.

The chromosomes comprise chromatin that is made of the proteins and DNA molecules wrapped around the histones to form a dense and compact structure.

They look like long threads that are present inside the cell's nucleus and code for specific information that gives the genotype and phenotype of an organism. It gets copied during the cell cycle.

Therefore, option C. chromosomes store the genetic information.

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2.
How do scientists classify intrusive igneous features?
according to shape, texture, and their distance from the nearest volcanic field
according to shape, color, and their relationship to surrounding layers of rock
according to shape, size, and their relationship to surrounding layers of rock

Answers

Answer:

according to shape, size, and their relationship to surrounding layers of rock

Explanation:

Intrusive igneous features are those formations around the igneous rock that are developed over time when magma cools and forms a solid shape, and they may include stocks, sills, di.kes, etc.

Therefore, scientists classify intrusive igneous features according to shape, size, and their relationship to surrounding layers of rock.

example of natural system of classifying organisms​

Answers

Answer:

In natural system of classification of Organisms, homology is brought out through the study of internal and external characters. Homology is the relationship of comparable structures having been derived from a common form.

For example, the fore arm of different land vertebrates has the same pentadactyl constitution.

Explanation:

pls mark brainliest

What are the uses of natural fibers?
note :- please don't copy the answers from other websites.

Answers

Explanation:

The uses of natural fibers are :

1. it is used to make clothes

2. it is used to make roof tiles

3. it is used to make partition boards

4. it is used to make paper

NOTE : i have not copied this ans

ich example best shows that the chemistry of water is helpful to plants?
Water’s polarity produces a high density, which allows water to move to the leaves.
Water’s bent shape causes a slow passage of nutrients up to the leaves of plants.
Water’s polarity causes cohesion that pulls other water molecules up through a plant.
Water’s bent shape reduces its own passage through the cell membranes of roots.

Answers

Answer:

waters polarity causes cohesion that pulls other water molecules up through a plant.

I hope this helps

In the oceans on either side of the Isthmus of Panama are 30 species of snapping shrimp, 15 species on the Pacific side and 15 different species on the Atlantic side. Species live at different water depths. Morphological and genetic data show that Atlantic and Pacific species that live at similar depths are sister species. The sister species on each side of the isthmus cannot interbreed because the water in the canal is fresh water, not salt water, and provides a barrier to reproduction. A sea-level, salt-water canal between the two oceans has been proposed to make transport across the isthmus easier. Which of the following outcomes is the most likely result if such a canal were built?
A. greater percentage of difference in DNA sequences between sister species that inhabit deep water than between sister species that inhabt stalow water
B. greater percentage of difference in DNA sequences between sister species that inhabit shallow water than between sister species that inhabit deep water
C. similar percentages of difference in DNA sequences between all pairs of sister species
D. greater percentage of difference in DNA sequences between Atlantic species than between Pacific species

Answers

Answer:

The options of this question are wrong, you can find the correct options by navigating on the web. The options of this question are as follow:

1) The sister species will continue to diverge from each other.

2) None of the sister species will interbreed with each other.

3) The Atlantic and Pacific shrimp will continue to live in their respective oceans and not enter the new canal.

4) Shallow-water species from the two oceans that are sister species would be more likely to interbreed with each other than would be deep-water species.

Answer:

4) Shallow-water species from the two oceans that are sister species would be more likely to interbreed with each other than would be deep-water species

Explanation:

In evolutionary biology, sister species are defined as descendant species formed when one species splits during the course of evolution. Moreover, adaptation refers to the evolutionary process of adjustment of organisms to the environment, which is usually due to natural selection. During the course of evolution, organisms under different environments must change to adapt to their environments. In this case, it is expected that sister species that live in similar environmental conditions (i.e., shallow-water species) exhibit fewer phenotypic differences, being therefore more likely to interbreed with each other.

hi everyone,what's is climate change.hope its easy for u all think u​

Answers

Climate change includes both global warming driven by human-induced emissions of greenhouse gases and the resulting large-scale shifts in weather patterns.

1.If you could only eat one meal for the rest of your life, what would it be?
2. How are you finding the topic DNA and cell division

Answers

1. Potato Salad (this answer may vary upon students favorite food)

2. Interphase is the longest phase of the cell cycle. During this phase, the cell grows to its maximum size, performs its normal cellular functions, replicates its DNA, and prepares for cell division.

Explain about Photosynthesis . ?​

Answers

Answer:

Plants and other creatures utilize photosynthesis to convert light energy into chemical energy, which is then released to power the organism's metabolic processes through cellular respiration.

OAmalOHopeO

Answer:

its basically a process thats plants use and many other organisms to convert light energy into chemical energy that helps them grow and without it, plants would go bye bye . :)

Explanation:

Learned it in science class lol.

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Using a deck of 52 playing cards, what are the odds against drawing a 6,7,8, or 9 ? question 1+1677-789909 Which of the following is likely to become a fossil1. a skeleton in a large lake2. a jellyfish in the ocean3. a skeleton in a river bed that is drying up4. an earthworm in a damp forest Summarize the role of meiosis in the human life cycle vs the role of mitosis. The cost function in a computer manufacturing plant is C(x) = 0.28x^2-0.7x+1, where C(x) is the cost per hour in millions of dollars and x is the number of items produced per hour in thousands. Determine the minimum production cost. What is -3 over 9 in standard form How much time did the process of mumification took?___________________________xD xD When a < 0 in the quadratic function y = ax2 + bx + C, the graph of the quadratic function opens _____? what is the surface area of a sphere if the volume is 3000 pi The following data are given for Harry Company: Budgeted production 1,088 units Actual production 946 units Materials: Standard price per ounce $1.976 Standard ounces per completed unit 11 Actual ounces purchased and used in production 10,718 Actual price paid for materials $21,972 Labor: Standard hourly labor rate $14.96 per hour Standard hours allowed per completed unit 4.2 Actual labor hours worked 4,872 Actual total labor costs $79,170 Overhead: Actual and budgeted fixed overhead $1,091,000 Standard variable overhead rate $28.00 per standard labor hour Actual variable overhead costs $136,416 Overhead is applied on standard labor hours. (Round interim calculations to the nearest cent.) The direct labor rate variance is a.$19,730.93 favorable b.$6,284.88 favorable c.$19,730.93 unfavorable d.$6,284.88 unfavorable A style of performance where a soloist alternates with a choir is called:O A. polyphony.O B. direct psalmody.C. antiphonal psalmody.O D. responsorial psalmody. What is the recursive formula for this geometric sequence?-4, -24, -144, -864, ...= -4O A.an =2n-1 30OB.la = -4ar = 2n-16fa= -6C.= 2n-1 30= -6O D.lanar = 2n-1.4 MC Qu. 90 Sea Company reports the following information... Sea Company reports the following information regarding its production costs: Units produced 46,000units Direct labor$39per unit Direct materials$32per unit Variable overhead$21per unit Fixed overhead$115,000in total Compute the product cost per unit under absorption costing. Which statement would most effectively communicate your refusal who is the richest person in the world ? Apakah ciri-ciri ikan Find the value of g. Just write the angle measure, without the degree symbol. which statement explain the basic tenets of christianty Can somebody help me with my question i will be so happy if you will;) which of the following equations are perpendicular