A chamber within a bone normally filled with air is a:

Answers

Answer 1

A chamber within a bone normally filled with air is a sinus

What is a sinus?

A sinus is a sac or cavity in an organ or tissue, or an abnormal cavity formed as a result of the destruction of tissues.

Sinus also refers to paranasal sinuses, which are air cavities in the cranial bones, near the nose and connecting to it.

Some individuals have four paired cavities found in the cranial bone or skull.

Thus, sinus is a chamber within a bone normally filled with air.

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Related Questions

Halophilic bacteria possess a pigment related to ____________ that absorbs solar energy to pump chloride ions, keeping them alive under such saline conditions.

Answers

Halophilic bacteria possess a pigment related to the plant's chlorophyll.

Halophilic bacteria

They are bacteria that live in high salt environments. They have a certain feature that enables them to pump out salts in order to maintain normal osmotic conditions in their bodies.

Halophilic bacteria are equipped with bacteriorhodopsin and halorhodopsin. These enable them to photosynthesize like plants. and generate the much-needed ATP for pumping out salts.

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generally speaking, fossils can form when organisms choose one: a. travel over gravels and leave imprints. b. are preserved in recrystallized limestone called marble.

Answers

Fossils can form when organisms travel over gravels and leave imprints.

How fossil can formed?

Fossils are formed when a living organism i.e. plant or animal dies and quickly buried by sediment. When burred into the soil they leave their imprint on the surrounding environment.

So we can conclude that fossils can form when organisms travel over gravels and leave imprints.

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30. 9) To complete this Venn Diagram, label the following cell parts as A (Prokaryotic), B (common to both) or C (Eukaryotic) characteristics:
A B C
Prokaryotic
Eukaryotic
capsule
flagella
cell wall (incl. plants)
cytoplasm
cell membrane
nucleus

Answers

capsule-Aflagella- Bcell wall-Bcytoplasm-Bcell membrane-Bnucleus-CA capsule is only present prokaryotes. Prokaryotes use their capsules to assist them stick to one another and different surfaces in their surroundings as well as to keep their cells from drying out.Flagella is present in both prokaryotes and eukaryotes however the flagella of eukaryotes is different due to presence of microtubules.Cell wall is present in prokaryotes and in plant cells. cell wall protects from desiccation and other substances that are harmful for the cell.Cytoplasm is present in both. however in eukaryotes the cytoplasm contains membrane bound organelles which are absent in prokaryotes.Cell membrane is present in both.Nucleus is only present in eukaryotes while in prokaryotes the genetic material is contained in a nucleus like substance.

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Answer: Capsule : A

Flagella: A

Cell Wall: B

Cytoplasm: B

Cell membrane:  B

Nucleus: C

Explanation: got this question correct on my lesson. Hope this helps, if you are in Visions, best of luck to you from another fellow vision student.

Describe the position and attachments of the parietal pericardium of the heart of the fetal pig.

Answers

The position  and attachments of the parietal pericardium of the heart of the fetal pig is; The parietal pericardium is a very thin layer on the outside surface of the heart.

What is the parietal pericardium of the heart?

The Parietal pericardium is a serous membrane that secretes serous fluid to lubricate heart and reduce friction.

The Parietal pericardium acts as mechanical protection for the heart and big vessels, and a lubrication to reduce friction between the heart and the surrounding structures.

The description of the position and attachments of the parietal pericardium  is that  is a very thin layer on the outside surface of the heart.

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Why does your body take so much
longer to digest a well done steak
than a Snickers candy bar?
A. because the musculoskeletal system can break
simple sugars down faster than protein
B. because the stomach's digestive chemicals can
break simple sugars down faster than protein
C. because the immune system can attack the
simple sugars and break them down faster than
protein
D. because the pelvic and urinary systems can brea
simple sugars down faster than protein

Answers

Answer:

d

Explanation:

.df

Answer:B

Explanation:

B

After a rap concert, as Dominique walks out into the fresh air, she notices her ears are ringing. This ringing indicates possible damage to the hair cells of her _____ membrane.Please type the correct answer in the following input field, and then select the submit answer button or press the enter key when finished.

Answers

This ringing indicates: possible damage to the hair cells of her basilar membrane.

What is basilar membrane?

The basilar membrane is the main mechanical element of the inner ear. Its vibration patterns have the effect of separating incoming sound into its component frequencies that activate different cochlear regions.

So we can conclude that the ringing indicates possible damage to the hair cells of her basilar membrane.

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What do animals need to survive and reproduce

Answers

Animals need features such as nutrition, movement, respiration, response to stimuli, growth, and excretion in order to survive.

Survival of animals

In order for an animal to survive, the following must be observed:

Nutrition: the animal must feed. Food gives energy and supplies the necessary nutrients for growth and repair.Movement: animals must be able to move away from dangers and in search of food.Respiration: the consumed food must be broken down and this can only happen by respiration.Growth: only by growing and developing will an animal be able to reach maturity and reproduce.Excretion: unused foods must be removed from the body due to their toxicity to the body.

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Which process is responsible for the production of the adult body of an animal from a zygote?.

Answers

Answer:

fertilization

Explanation:

because the adult body can only form a zygote if the egg is fertilized

In part of the model, materials move out of the bag and into the water. which
of the following cell processes does this best model?
a. substances move from an area of low concentration to an area of
high concentration.
b. small molecules easily pass between the phospholipids in the cell
membrane.
c. transport proteins use energy to push large molecules across the
cell membrane.
o d. a vacuole opens to release substances into the area outside the
cell.
previous

Answers

Answer:

small molecules easily pass through the phospholipids in the cell membrane

Which of these
describes
humoral immunity?
A. the binding of antigen and antibody triggering a
response of plasma and memory b-cells to attack
B. t-cells and macrophages fighting infected cells that
are non-self or cancerous
C. our body remembering pathogens it has fought off or
learning from vaccines
D. obtaining immunity from an outside source, like
mother to baby
FutureForw

Answers

Answer:

D

Explanation:

obtaining immunity from an outside fluid

How do humans differ from chimpanzees?

Answers

They walk on all fours , they can’t swim , shorter lifespan, extra chromosomes

Humans and chimpanzees are both mammals but they have characteristics that different or set them apart from each other. These characteristics include;

- Chimpanzees work on all four legs while humans walk on only two legs
- Chimpanzees avoid river/oceans because they do not know how to swim while humans can learn how to swim with constant practices
- The body of a chimpanzee is covered with thick hairs while humans do not have as much hair on the body
- Humans have an S shaped spine while chimpanzees have a C shaped spine

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Science question! help…….

Answers

Original Question: Some plants have red leaves instead of green leaves. Which of the statement about the production of food through photosynthesis in such plants is most likely true?

Answer: (J) The chlorophyll necessary for photosynthesis is present but hidden by red pigment.

Explanation: Every plant has chlorophyll to help with the production of food through photosynthesis.

For plants with red leaves or any other color but green, the pigment simply acts as a 'sunscreen to the plant', who perhaps doesn't require so much sunlight in its photosynthesis.

Hope that helps!

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One reason biodiversity is such an important aspect of sustainability is that it ____. Group of answer choices provides vital ecosystem services through the interactions among species and keeps any population from growing too large maintains a ready supply of new materials for water, soil, and food makes life less susceptible to constant adaptation and changing environmental conditions is the ultimate source of energy for plants increases ecotourism in less developed countries

Answers

One reason biodiversity is such an important aspect of sustainability is that it provides vital ecosystem services through the interactions among species and keeps any population from growing too large (option A).

What is biodiversity?

Biodiversity refers to the number and variety of species of plant and animal life within a region.

Sustainability is the means of configuring civilization and human activity so that society, its members and its economies are able to meet their needs and express their greatest potential in the present without compromising the ability of future generations to do the same.

Biodiversity helps to ensure sustainability because it provides vital ecosystem services through the interactions among species and keeps any population from growing too large.

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One thing all mechanisms of evolution have in common is that ____________________.


They all lead to beneficial change in the population


They all lead to positive change in the population


They all lead to change in the population


They all lead to detrimental change in the population

Answers

Answer:

they lead to positive change in the population

What is the term for thin, stained slice of tissue mounted on a microscope slide?

Answers

The correct term is histological section.

What are histological sections?

Histology has to do with the study of tissues. Sectioning has to do with cutting very thin slices of objects.

Thus, histological sectioning is an act of cutting very thin slices of tissues for the purpose of mounting such on microscope slides. To enhance views and differentiate different parts of cells, sections of tissues are often stained.

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What accurately describes a difference between fungi and plants?

Answers

Fungi are different from plants in that they are achlorophyllous.

Fungi vs plants

Fungi and plants are both eukaryotic in nature when it comes to their cells.

However, plants differ from fungi in that plants contain a green pigment known as chlorophyll while fungi do not. The green pigment enables plants to photosynthesize.

Thus, fungi are said to be achlorophyllous.

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a ________ is a very large general-purpose computer that is capable of performing very many functions as if these are done simultaneously, and storing extremely large amounts of data.

Answers

The mainframe computer is a very large general-purpose computer that is capable of performing very many functions as if these are done simultaneously, and storing extremely large amounts of data.

What are mainframe computers?

Mainframe computers are computers used primarily by large organizations for delicate applications like processing bulk data.

They  are known for their large size, amount of storage, fast processing power and high level of reliability in results.

Thus, the mainframe computer is a very large general-purpose computer that is capable of performing very many functions as if these are done simultaneously, and storing extremely large amounts of data.

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Which function of the cell cycle is especially important to burn victims? growth of existing cells repair of existing cells protection of new cells reproduction of new cells

Answers

Reproduction of new cells because if you were seriously burned the cell tissue would be dead and new cells need to grow to take the place of old cells

Reproduction of new cells are the function of the cell cycle is especially important to burn victims. Hence option d is correct.

What is reproduction?

Reproduction  is defined as birthing is the process by which a living thing produces offspring. To reproduce is to reproduce. It is a biological procedure by which an organism creates a physiologically identical progeny. Generation after generation, reproduction makes possible and ensures the survival of species.

The phases of the cell cycle are G1, S, G2, and mitosis. In gap 1, the cell expands in size and copies the DNA during the synthesis phase. The cell goes through preliminary modifications in the gap 2 phase. The real division takes place during the mitotic phase, when the cell multiplies and grows in quantity to replace the burned victim's old and dead cells. It encourages the wounded area's growth and healing.

Thus, reproduction of new cells are the function of the cell cycle is especially important to burn victims. Hence option d is correct.

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1. List four sensations detected by the tactile receptors in the skin in the spaces below:

Answers

The four sensations detected by the tactile receptors in the skin are touch, pressure and vibration and tickle.

What are the 4 sensations that the receptors found in the skin have?

They are nerve endings formed by a branched axon. They are distributed in almost all parts of the body and capture mechanical (pressure), thermal (cold and heat) and especially painful sensations.

This is because Tactile sensations are the ones that detect touch, pressure, and vibration. About six different types of tactile receptors are known.

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What are substrates?
A. the products of chemical
reactions
B. a part of the lungs that helps with
oxygen exchange
C. the reactants (ingredients) of
enzyme-catalyzed reactions

Answers

The base on which an organism lives
C. Enzyme-catalyzed reactions

Organisms with the most beneficial traits will survive. This is commonly known as.

Answers

Answer:

O Ecosystem which is survival of the fittest.

Explanation:

Answer:

Natural selection

Explanation:

Which observation helped scientists determine the age of the universe?
A. All stars and galaxies are moving closer together at the same rate.
B. All stars and galaxies are moving away from Earth at the same
rate.
OC. The farther away a star or galaxy is, the more slowly it is moving
away from us.
о D. The farther away a star or galaxy is, the more quickly it is moving
away from us.

Answers

A. all stars and galaxies are moving closer together at the same rate

The word transcribe means 'to write out' and the word translate means 'to express in a different language'. Review the meanings of transcription and translation in protein synthesis. How do the technical meanings of these words relate to meanings of the words in ordinary language.

Answers

The word transcribe means 'to pass the code from DNA to RNA', whereas the word translate means 'change from mRNA to protein', which is a different language.

What is the genetic code?

The genetic code is a series of instructions that indicate how to synthesize proteins from a given gene sequence.

During transcription, the DNA gene sequence is transcribed into a messenger RNA (mRNA).

During translation, triplets of nucleotides or codons in mRNA determine specific amino acids in the growing protein sequence.

In conclusion, the word transcribe means 'to pass the code from DNA to RNA', whereas the word translate means 'change from mRNA to protein', which is a different language.

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The first true antibiotic was __________, which was discovered by __________. View Available Hint(s)for Part A streptomyces; Selman Waksman penicillin; Alexander Fleming arsenic compounds; Paul Enrich sulfanilamide; Gerhart Domagk

Answers

Answer:

penicillin, Alexander Fleming

Need help asap!!!!!!!!!!!!!!!!!!

Answers

(a) Magnetic induction occurs when a conductor placed in a magnetic field changes direction or moves across the line of flux of the magnetic field.

(b) A magnet can attract unmagnetized material when the field from the magnet aligns the magnetic dipoles of the unmagnetized material.

What is magnetic induction?

Magnetic induction or Electromagnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field.

How unmagnetized material is attracted to a magnet

A magnet can attract unmagnetized material when the field from the magnet aligns the magnetic dipoles of the unmagnetized material so that they match those of the magnet itself.

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The chart below shows the three main types of plant tissues and associated tissues.

The chart shows the 3 main types of plant tissues and associated tissues. Plant tissue is divided into dermal, ground, and 1. Ground is divided into 2, Collenchyma, 3. 1 is divided into 4 and 5.

Which row (A, B, C, or D) best completes the chart above?


1
2
3
4
5
A
Vascular
Xylem
Parenchyma
Phloem
Sclerenchyma
B
Xylem
Phloem
Vascular
Sclerenchyma
Parenchyma
C
Parenchyma
Vascular
Xylem
Phloem
Sclerenchyma
D
Vascular
Sclerenchyma
Parenchyma
Xylem
Phloem
A
B
C
D

Answers

The plant tissues can be subdivided in the chart as Vascular Sclerenchyma Parenchyma Xylem Phloem. Thus, the correct option is D.

What role does the sclerenchyma play?

Sclerenchyma's primary job is to offer mechanical support. They are made up of lengthy, slender cells that have a thick lignified wall. They lack protoplast and are largely dead.

The complete chart and table are given in the image attached.

A basic permanent tissue known as parenchyma makes up a large portion of the ground tissues of plants, where vascular tissues and other tissues are attached. They are non-vascular and made up of undifferentiated, primitive living cells that have undergone modifications to carry out distinct tasks.

Xylem, along with phloem and cambium, is a key component of vascular tissue. Its primary functions include providing mechanical support and storage as well as moving water and solutes from the plant-soil interface to the stems and leaves.

Parenchyma cells, are also a component of phloem and are essential for the storage of water, non-structural carbohydrates, and storage proteins.

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Answer: it’s D

Explanation: truss

+
C
What will most likely increase if there is a high death rate?

Answers

Answer: would be emigration

Explanation: When the death rate shoots up in a particular environment due to certain factors organisms are bound to emigrate away for such environment to avoid death from reaching them

Which of the following is the best example of a scientific question?
A. What is my favorite food to eat in the morning?
B. What causes trees to lose their leaves in the fall?
C. Is it ethical to do experiments on animals?
D. How high can my dog jump?
SUBMIT

Answers

Answer:

b

Explanation:

Answer:

its c

Explanation:

The dominant type of extracellular protein fiber in dense connective tissue is.

Answers

collagen fibers, I hope this was helpful to you :)

would cause evolutionary change in animal populations that colonize a new environment as its conditions differ from those found in their home?

Answers

Gene flow would cause an evolutionary change in animal populations that colonize a new environment as its conditions differ from those found in their home.

What is Gene flow?

In genetics, the expression 'gene flow' refers to the migration of organisms or movement of their reproductive germinal cells to a new place.

 

Gene flow is well known to alter the genetic structure of the population in the site where it occurs.

In conclusion, gene flow would cause an evolutionary change in animal populations that colonize a new environment as its conditions differ from those found in their home.

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(Given that a = 7 cm and b = 8 cm,work out the area of the triangle.Give your answer rounded to 1 DP.acmbThe diagram is not drawn accurately. In each generation, the wings of experimental fruit flies were clipped short for fifty generations. The fifty-first generation was born with normal-length wings. This observation would tend to disprove the idea that evolution is based on Answer this please, thank you in advance :D What is the correct way to punctuate the bolded portion of this quotation?Thank you so much for your support they said.support! theysupport! Theysupport? theysupport. they Reread the autobiographical sketch of Calamity Jane. Then complete a paragraph-by-paragraph list of the details identifying the who, what, where, when how and other details that add imagery to the story. Your notes should include descriptive details such as these.Identify the characters and list their characteristics?Where does the story take place?Are there specific details on the location?Over what length of time does the story span?What is the sequence of events?What are the highlights of the story? ircle A has center of (6, 7), and a radius of 4 and circle B has a center of (2, 4), and a radius of 16. What steps will help show that circle A is similar to circle B? ( The Yankee (American) whaling ships began appearing in Spanish California at an increasing rate, driven by their desire for all of the following, except:a. good harbors to repair ships and take on fresh supplies.b. to exchange goods from New England for local produce.c. to engage in the lucrative sea otter fur trade.d. to establish permanent trading posts with Spanish settlements.Spanish control over Alta California was ended by the a. Yuma massacre b. death of Father Serrac. Mexican Revolution.d. establishment of Fort Ross.Governor Figueroa's secularization orders stipulated thata. half of the mission lands and livestock would be left to the Indians. b. all of the mission land and livestock would be left to the Indians. c. all mission cattle could be killed by the missionaries. d. Mariano Vallejo would administer the entire program.Under the period of rule from Mexico, all of the following are true except: a. land grants increased in size vastly from that of the Spanish era. b. foreigners were allowed to settle if they converted to Catholicism and took an oathof allegiance to the Mexican government. c. Ranchos flourished mainly through the hide and tallow trade. d. Californios were much more loyal to Mexico City than they had been to Spain.During the Mexican period, the real political control of society was held by a. Mexican governors. b. prominent ranchero families. c. Franciscan missionaries.d. peninsularesBy the 1820s, American trading interests primarily focused on California's: a. sea otter pelts. b. fur seal pelts.c. hides and tallow. d. wheat.Under the period of rule from Mexico, all of the following are true except: a. land grants increased in size vastly from that of the Spanish era. b. foreigners were allowed to settle if they converted to Catholicism and took an oathof allegiance to the Mexican government. c. Ranchos flourished mainly through the hide and tallow trade. d. Californios were much more loyal to Mexico City than they had been to Spain.The most important political issue in California during the 1820s and 1830s was a. the threat of a British take-over of San Francisco. b. the establishment of schools for Californio youths. c. the intrusion of American settlers and traders.d. the secularization of the missions.Vaqueros on the Ranchos included large numbers of: a. Mexican settlers. b. Male California Indians. c. old Spanish peninsulares d. American newcomers to the provinceOverland migration to California from the United States was: a. at its peak in the 1820s. b. made easier by Hastings Emigrant Guide.c. declining by the 1840s.d. stimulated by reports from American traders, mountain men, and sailors. Which constitutional armament eventually expanded the power of the bill of rightsA. EleventhB. Fourteenth C. Twentieth D. Twenty-fifth Read the following excerpt from Levitt and Dubners Freakonomics.There is a tale, The Ring of Gyges, that Feldman sometimes tells his economist friends. It comes from Platos Republic. A student named Glaucon offered the story in response to a lesson by Socrateswho, like Adam Smith, argued that people are generally good even without enforcement. Glaucon, like Feldmans economist friends, disagreed. He told of a shepherd named Gyges who stumbled upon a secret cavern with a corpse inside that wore a ring. 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Even though they were exhausted from their long day, the seventh graders held a dance that night, and the the eighth graders saw a play. All the board games __ now stuck under the table A.are B.is C.were 2. (07.02 LC)Which statement is true for the equation 4x 4x 5 = 5? (5 points)It has no solution.It has one solution.It has two solutions.It has infinitely many solutions. A roof repairman charges a $60 consult fee, and then $45 per hour to complete repairs. if the homeowner pays a total of $195, how long was the repairman there? answers a: 2 hours b: 2.5 hours c:4 hours d: 3 hours translate this to spanish : i find my work bey intersting what is the answer What two economic impacts did the 9/11 attacks have? HELPPPPP!!!!!! Read the passage.excerpt from "Paper Pills" by Sherwood AndersonDoctor Reefy was a tall man who had worn one suit of clothesfor ten years. It was frayed at the sleeves and little holes hadappeared at the knees and elbows. In the office he wore also alinen duster with huge pockets into which he continually stuffedscraps of paper. After some weeks the scraps of paper becamelittle hard round balls, and when the pockets were filled hedumped them out upon the floor. For ten years he had but onefriend, another old man named John Spaniard who owned a treenursery. Sometimes, in a playful mood, old Doctor Reefy tookfrom his pockets a handful of the paper balls and threw them atthe nursery man. 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