What is the structure of the middle ear?​

Answers

Answer 1

Answer:

The middle ear is a narrow air-filled cavity in the temporal bone. It is spanned by a chain of three tiny bones—the malleus (hammer), incus (anvil), and stapes (stirrup), collectively called the auditory ossicles.

Explanation:

Hope this helps!;)


Related Questions

a gene is a segment of mrna

Answers

Answer:

An RNA single-stranded molecule that is complementary to one of a gene's DNA strands, to be precise.

Explanation:

DNA sequences or segments code for proteins or molecules with defined functions, called genes.


reptilesimprovements over amphibians​

Answers

The person above me is correct

What. Is black i will mark as brinelist ​

Answers

Just black?
Well it’s a colour which results from the absence of visible light. In technical sense black and white aren’t colour, but shades however, many people disagree since you combine other pigments to get black. Black is also associated with darkness, evil, despair and night (if it’s Literature related). It’s the darkest shade and it’s an achromatic colour.

simple. black. Is a color and it is dark

what are oysters used for​

Answers

Answer:

Well most people (like myself) eat oysters in a seafood boil. But you can also find a pear in an oyster and use it for a necklace or bracelet.

Explanation:

Answer:

Eating

Explanation:

how do cells of plant devide without centrioles? explain​

Answers

Answer:

Because the spindle fibers originate outside the nuclear membrane, plant cells can divide without centrioles.

 ~OAmalOHopeO

Which of the following is an example of evolution?
A. Plants colonizing inland areas after developing vascular systems that can hold and transport water.
B. An organism developing immunity to a disease after surviving it.
C. A Chameleon changing color when entering a different environment.
D. An organism dying because it is not adapted to its habitat.

Answers

Answer: B

Explanation: because it adapt to its environment to survive

The development of an organ system like a vascular system over a long period of time in plants is an example of evolution. Thus option A is correct.

What is evolution?

Evolution is a series of events that have taken place in several years to make the species more advanced for the environment due to the introduction of multiple mutations in the genetic sequence.

During evolution, plants have gained the genetic mutation that codes for the vascular system which provide support and transports water in plants. So option A is correct.

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When considering proteins that help control the cell cycle:
Stimulating proteins are encoded by tumor suppressor genes and inhibitory proteins are encoded by
proto-oncogenes.
O True
O False

Answers

True


oncogene are mutated forms of pronto-oncogene and can lead to over stimulation of the cell cycle.


1) P53 is a inhibitory protein

Hãy mô tả các bước tạo thư viện cDNA từ tế bào máu heo.

Answers

Answer:

What you mean bro?

Explanation:

Explain how in glycolysis that the splitting of one glucose molecule results in 4 ATP but there Is only a net gain of 2 ATP.

Answers

Answer:

Explanation:

During glycolisys in cytoplasm, first step involves adding two phosphates to glucose molecule. This step requires the use of two ATP molecules. The next step is splitting 6 carbons glucose into two 3 carbons pyruvates. This step produces 4 ATPs and 2 NADHs. However, since we used up two ATPs during the initial phosphorylation, the net gain is only 2 ATPs

When observing a group of children at a daycare center, Emily made the following observations:
Five year old children played in one location during independent play time. Three year old children moved between different activities, rather than staying in one location.
By analyzing Emily’s observations, what could be a valid conclusion?
a.
Five-year-old children have longer attention spans than three-year-old children.
b.
Three year old children do not like being in daycare.
c.
Five-year-old children are favored over three-year-old children at the daycare center.
d.
Three-year-old children are favored over five-year-old children at the daycare center.

Answers

Answer:

the answer is a

Explanation:

you can read twice. it show the 5 year emily have longer attention. thay why he see 3 year children go around

the answer is a. five year olds have a longer attention span which means that they can do one activity for a longer amount of time. three year olds are easily distracted so it would be more beneficial to keep them intrigued with multiple short activities.

What is the application of Gene Editing in Primary T Cells?

Creative Biogene CRISPR/Cas9 Platform provides comprehensive gene editing services for various cell lines, especially for primary T cells. With years of experience, our talented scientists have established an efficient assay to edit genome in T cells by CRISPR/Cas9. At CRISPR/Cas9 PlatformCB, we offer a gene knockout service for customer as well as isolation of primary T cell service. Based on our excellent platform, our staff are focusing on supplying the best services and products.

https://www.creative-biogene.com/crispr-cas9/service/gene-editing-in-primary-t-cells.html

Answers

Answer:

Creative Biogene CRISPR/Cas9 Platform provides comprehensive gene editing services for various cell lines, especially for primary T cells. With years of experience, our talented scientists have established an efficient assay to edit genome in T cells by CRISPR/Cas9. At CRISPR/Cas9 PlatformCB, we offer a gene knockout service for customer as well as isolation of primary T cell service. Based on our excellent platform, our staff are focusing on supplying the best services and products.

What is the ratio of surface area to volume for a sphere with the following measurements. Surface area = 432m2, volume = 864m3

Answers

Answer:

the ratio of the surface area to the volume is 1:2

1. An amoeba is a unicellular organism.

Answers

Answer:

true ameoba is unicellular

Answer:

1.All living things contain cells

2.All living Things respond to stimuli.

Answer From Gauth Math

Soil moisture (wethess) is
important for...?
A. it is a determination of how much water the soil can
hold and how easily water moves through,
B. it is evidence of how easily the process of runoff in
which the soil is filtered can occur.
C. Both & B
D. None of the above

Answers

Explanation:

Soil moisture is a key variable in controlling the exchange of water and heat energy between the land surface and the atmosphere through evaporation and plant transpiration.

A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all. Q: Based on the experiment in the scenario, which visual aid would be most helpful in showing the change in the plants' heights over time? A. a line graph B. a timeline C. a pie chart D. a bar graph

Answers

The most helpful visual would be a bar graph.

Exchange of gases in plants occur through:
(A): Stomata.
(B):Lenticels.
(C):Root surface.
(D):Choloroplast.

(1)A,B and D
(2)A,B,CandD
(3)AandC
(4)A,BandC

Answers

Answer:

(A): through the stomata

After buying a new house by the lake, a family wanted a better view of the water so they could watch the sailboats. They hired a company to cut down the small trees and shrubs that were blocking the view.

Which type of water pollution is most likely

1 . Nutrient
2.sediment
3.toxic
4. Bacterial

Answers

The water pollution that is most likely to occur is Nutrient pollution

Pollution can be defined as the addition of materials or energy (pollutants) to the environment that damages it, making it undesirable or unfit for life. There are different types of pollution which includes:

--> Air pollution

--> Radiation pollution

--> soil pollution and

--> water pollution.

WATER POLLUTION is defined as the type of pollution that occurs when pollutants are being released into water bodies such as streams, lakes, ocean, beaches making it unsafe to use for both human and aquatic life activities. Depending on the type of pollutants, there are also different types of water pollution, these include:

chemical pollution Groundwater pollutionsediment pollutionmicrobiological pollutionnutrient pollutionsurface water pollution and Oxygen-depletion pollution.

NUTRIENT pollution occurs when there is EXCESS of it in the water bodies through organic fertilizer or compost manure from the leaves of the cut down trees and shrubs. When nitrates from the agricultural waste gets into the water body(lake)  it can cause a drastic increase in aquatic plant growth, especially algal growth. This excessive growth can lead to a decrease in oxygen level of water they by affecting the aquatic life of the lake.

Therefore the CORRECT OPTION is A Nutrient pollution.

Option B is wrong because sediment pollution is a type that involves loose sand, clay, silt, and other soil particles that are carried from a site by runoff water not from cut down trees.

Option C is wrong because toxic or chemical pollution is caused by chemicals from industrial wastes.

Option D is wrong because it is caused by natural existing bacteria in the water bodies and are capable of causing disease when ingested. Example Vibro cholera bacteria.

Learn more about water pollution here

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How green is green energy?

Answers

Answer:

Green energy is important for the environment as it replaces the negative effects of fossil fuels with more environmentally-friendly alternatives. Derived from natural resources, green energy is also often renewable and clean, meaning that they emit no or few greenhouse gases and are often readily available.

what are the three animals types

Answers

Answer:

Explanation:

Three different types of animals exist: herbivores, omnivores, and carnivores.

What is the correct clases for this drugs
Promethazine

heelp me please

Answers

Answer: Please refer to:

Promethazine is in a class of medications called phenothiazines. It works by blocking the action of a certain natural substance in the body.

Explanation:

I'm not sure but hope it helps.

OPEN ENDED QUESTION
Why should you NOT drink seawater even
in extreme survival situations? Please
use at least 3 vocabulary words from the
video.

Answers

Answer:

sea water has lot of salt which is dangerous to human health

Explanation:

i don't seem to see any video.i which I could answer your questions

human kidneys can only make pee (urine) that is less salty than sea water, so, to get rid of all the salt you drank you need to urinate more than you drank. eventually you'll die from dehydration.

please give me brainliest

Question 4 of 20
Which energy transfer occurs when a cube of ice is placed in a glass of
water?
A. The chemical energy of the ice is transferred to the liquid water.
B. The nuclear energy in the water molecules is released from the ice
into the liquid water.
C. Gravitational potential energy is transferred from the liquid water
to the ice.
O D. Thermal energy is transferred from the liquid water to the ice.
SUBMIT

Answers

Answer:

option (D) is the right answer

.1.2 The type of control shown in the diagram is known as

Answers

Answer:

which diagram

Explanation:

I hope you understand

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

A ______, such as a bean, has two seed leaves.

Answers

Answer:

A dicotyledonous plant

hope this helps you

Select the statement about human impact on the environment that is FALSE. The number of humans engaging in a specific activity impacts the severity of the issue. Damaging the environment threatens human and ecosystem health. Pesticide and fertilizer use by humans is particularly damaging to the environment. Urban growth leads to increased waste, which leads to climate change.

Answers

Answer:

the answer is should be True

What about the structure of DNA allows it to copy itself?
A. It is held together mostly by hydrogen bonds, which are easy to open for replication
B. It has enzymes built into the helix that make a copy when needed.
C. It is double stranded, so each side serves as a template for a new strand.
D. DNA is not copied, it is only passed down through each generation.

Answers

Answer:

C. It is double stranded, so each side serves as a template for a new strand

Explanation:

The structure of DNA is double stranded, so each side serves as a template for a new strand. The correct option is C.

What is DNA replication?

Replication is the procedure by which the DNA of the genetic code is copied in cells.

Before dividing, a cell must duplicate (or replicate) its a whole genome so that each eventually results daughter cell has its own entire genome.

The DNA replicates itself multiple times during the process of replication. It is a biological polymerization that goes through the steps of commencement, elongation, and termination.

The reaction is catalyzed by enzymes. The main enzyme in the process of replication is DNA Polymerase.

DNA replication occurs in eukaryotic cells' interphase nuclei. At the S-stage (synthesizing) of the cell cycle, DNA replication occurs prior to mitosis.

Thus, the correct option is C.

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Plants that have a taproot and parallel veins are known as_________.

Answers

Answer:

dicotyledonous(dicot) plants

Explanation:

What do I say I need help plz

Answers

Answer: The water from the bottom of the dirt it going inside the plants roots around the tree. Therefore things a living, not just the tree.

Explanation:

Would you expect ribozymes in organisms that grow in very hot environments , such as hot springs or deep - sea vents , to have a high or low GC content ?

Answers

Answer:

yes I expect ribozymes in organisms that grow in very hot environments , such as hot springs or deep - sea vents.

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