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The cilia serve to transport dust and other foreign particles, trapped inmucous, to the back of the nasal cavity and to the pharynx. There the mucus iseither coughed out, or swallowed and digested by powerful stomach acids. After passing through the nasal cavity, the air flows down the pharynx to thelarynx.
Related Questions
As a frog develops from a tadpole into an adult frog, it goes through changes that are signaled by hormones within the body. Which best describes the role hormones play in changing a tadpole to a frog?
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Answer: In amphibians, metamorphosis is generally associated with the changes that prepare an aquatic organism for a primarily terrestrial existence In (frogs and toads), the metamorphic changes are more dramatic, and almost every organ is subject to modification Regressive changes include the loss of the tadpole's teeth and internal gills, as well as the destruction of the tail. At the same time, constructive processes such as limb development are also evident. The means of locomotion changes as the paddle tail recedes while the hind limbs and forelimbs develop. The tadpole's cartilaginous skull is replaced by the predominantly bony skull of the frog. The teeth used for tearing pond plants disappear as the mouth and jaw take a new shape, and the tongue muscle develops. Meanwhile, the large intestine characteristic of herbivores shortens to suit the more carnivorous diet of the adult frog. The gills regress, and the gill arches degenerate. The lungs enlarge, and muscles and cartilage develop for pumping air in and out of the lungs. The sensory apparatus changes, too, as the lateral line system of the tadpole degenerates, and the eye and ear undergo further differentiation The middle ear develops, as does the tympanic membrane characteristic of frog and toad outer ears. In the eye, both ingratiating membranes and eyelids emerge.
pls mark me as brainliest
In "gastrulation" cells begin to differentiate. They form different types of tissues so they can accomplish different purposes in the body.
True or False?
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Answer:
The statement that says that In "gastrulation" cells begin to differentiate and they form different types of tissues so that they can accomplish different purposes in the body, is true.
Explanation:
Gastrulation involves a process of cell division, migration and differentiation, being one of the stages of embryonic development.
Cell differentiation and migration in gastrulation leads to the formation of germ layers, which are responsible for forming different tissues and fulfilling different functions in the body:
The outermost lamina is called the ectoderm, which can give rise to nerve tissue and part of the skin tissue. The mesoderm is the middle lamina, and from it vascular, bone, muscle, and joint tissue can develop, as well as tissues of excretory and reproductive organs. Endoderm corresponds to the internal lamina, forming in great part the mucous membrane of the organs of the digestive system.It is true, then, that In gastrulation cells begin to differentiate and form different types of tissues so they can accomplish different purposes in the body.
What types of sources are reliable?
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Answer:
A reliable source is one that provides a thorough, well-reasoned theory, argument, discussion, etc. based on strong evidence. Scholarly, peer-reviewed articles or books -written by researchers for students and researchers. Original research, extensive bibliography.
Explanation:
Hope this helps! Please mark brainiest!
Reliable sources are usually sources that end in .org Im not sure about other sources but the most reliable ones would be the .org However, there are some .com sources that are reliable, Dont use Wikapedia, this website is a place where anyone and everyone can edit what the facts say.
I hope that this helps you out ^-^
I NEED HELP IN ENVIRONMENTAL SCIENCE PLEASE
Answers
I WILL GOVE BRAINLIEST!!!
Male and female reproductive cells are collectively known as:
Spores
Gametes
Pollen
Offspring
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Answer:
gametes is the answer so the male and female reproductive cells are collectively know as gametes
Answer:
b gametes
Explanation:
These sex cells are also called reproductive cells or gametes.
When assessing claims what is validity?
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Answer:
Validity refers to the degree to which a method assesses what it claims or intends to assess.
Explanation:
In glycolysis, for each molecule of glucose that is broken down into pyruvate?
2 molecules of ATP are used, and 4 molecules of ATP are produced
2 molecules of ATP are used, and 2 molecules of ATP are produced
4 molecules of ATP are used, and 2 molecules of ATP are produced
2 molecules of ATP are used, and 6 molecules of ATP are produced
Answers
Answer:
2 molecules of ATP are used, and 4 molecules of ATP are produced
Explanation:
Match the word to the best sentence.
anticodon, codon, complementary strand, DNA, DNA replication, mRNA, nucleotide, transcription, translation, tRNA
Group of answer choices
A three base pair sequence on mRNA that codes for the addition of a specific amino acid to build a protein.
This brings amino acids to the ribosome during translation to help make a polypeptide.
A three base pair sequence found on tRNA that will pair with the codon during protein synthesis.
The process that occurs during the S phase of the cell cycle and enables each cell produced during mitosis to have a complete set of genetic instructions.
This nucleic acid carries the instructions to make a protein from the nucleus to the cytoplasm.
One of the monomers of a nucleic acid, that is made of a sugar, a phosphate group and a nitrogen base.
Each half of the double helix that pairs together based on the base pairing rules.
The process of making a mRNA sequence by reading a gene on the DNA in the nucleus of a cell.
This polypeptide stores the genetic information in living organisms and is found in the nucleus of a eukaryotic cell.
After a mRNA strand attached to a ribosome, this process occurs and a protein is made.
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A cell must expend energy to accomplish substances movement during A osmosis B active transport C passive transport D diffusion E filtration
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(Giving brainliest!!)
Explain why the sun appears to be the brightest star in the sky. Relate your explanation with an example, such as streetlights
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Answer:
when you look a streetlight from far it will be some how not bright. the other stars are far from planet earth . but the sun is near
Explanation:
Casimir recently purchased an old car. He notices the rims have some spots of rust on them. So, he goes to an automotive shop and chooses a product that is recommended for removing rust. Which acid is most likely to be found in the product? hydrofluoric acid sulfuric acid hydrochloric acid nitric acid
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Answer: Hydrochloric acid
Explanation:
edge 2021
Answer:
Just here confirming that the answer is hydrochloric acid.
Explanation:
please I need help! its a biology subject so can someone please help me and give me the answer
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Hope it will help you ...............
definition of biotechnology
Answers
Answer:
definition
Explanation:
the exploitation of biological processes for industrial and other purposes, especially the genetic manipulation of microorganisms for the production of antibiotics, hormones, etc.
4. Which of the following would be the best control sample for the study?
A)
A sample of water collected just downstream of the southern forest
(B) A sample of water collected just downstream of the housing development
C)A sample of water collected just downstream of the northern forest
D)A sample of distilled water
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Answer:
D. A sample of distilled water
Explanation:
You need to have a control sample that hasn't been messed with to see what would happen if you had no reaction to your experiment
A sample is the smaller set of data which a researcher makes use of to complete a research.
As a result of this, we can see that a sample study is the use of these samples to come to a conclusion about the investigation or research which is going on.
Some examples of a sample study include:
Simple random sampling. Systematic sampling. Stratified sampling, etcPlease note that your question is incomplete so i gave you a general overview which would help you get a better understanding of the topic.
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Please help It is making me cry
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Answer:
What are you supossed to be doing
Explanation:
Answer:
Can you give me the answers?
Explanation:
On Friday, you play Xbox Kinect Dance Central 2 through the night. The next morning you try cutting the grass but your arms, legs, and back ache. You are “in a fog” and forget to add gas to the lawn mower, your vision is blurry, and you are somewhat irritable. What happens in your body to recover from sleep deprivation?
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Answer:
During sleep your body heals itself and restores its chemical balance. Your brain forges new thought connections and helps memory retention.
Explanation:
hope dis helps
Name Cu2(SO4)3 (transition metal).
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Answer:
Cooper sulphate
Explanation:
I think soooo
Whats the name of this flower?
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Answer:African lily
Explanation:
Just searched it
Replicate the following DNA sequence: TCT *
Replicate the following DNA sequence: GGG *
Replicate the following DNA sequence: GGA*
Voir
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Hint:
A goes with T
T goes with A
C with G
G with C
which molecules are not able to permeate the cell membrane
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Answer:
Small uncharged polar molecules, such as H2O, also can diffuse through membranes, but larger uncharged polar molecules, such as glucose, cannot. Charged molecules, such as ions, are unable to diffuse through a phospholipid bilayer regardless of size; even H+ ions cannot cross a lipid bilayer by free diffusion.
Explanation:
In a plant species, the allele for dark green leaves (D) is dominant over the allele for light green leaves (d). A plant with Genotype (Dd) is crossed with a plant with genotype (did). What percentage of the offspring are expected to be hybrid for the leaf color trait. A 0% B 25%. C.50%. D 75%
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So, as we set the punnet square. We get (2)Dd and (2)dd. So 100/2 = 50%.
Correct choice - C 50%.
The percentage of the offspring that is expected to be hybrid for the leaf color trait is 50%. The correct option is C.
What are alleles?The trait is caused by a pair of two alleles on the chromosome, and there are two possible outcomes. The dominant allele, which is typically written in capital letters and will control the organism's phenotype even in the presence of the other allele, is the one that has the ability to silence the other allele.
It is used in biology to refer to inherited traits that do not manifest in the phenotype of the individual who possesses them but may do so in their offspring.
Recessive alleles, which are only expressed when they are homozygous, are this other type of allele. Both heterozygous and homozygous genotypes exhibit the dominant allele.
Dd is crossed by dd.
100 / 2 = 50%.
Therefore, the correct option is C.
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Cindy/was diagnosed with anemia recently, because her physician found that her blood contains a lower count of red blood cells than normal. 4 A) What is anemia's immediate impact on gas exchange?
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Answer:
The correct answer would be - a decrease in the numbers of RBCs will lead to a decrease in the ability for gas exchange in a person.
Explanation:
In the case of anemia, there would be a decrease in the number of RBCs that might be due to increased destruction of these cells, or low production of RBCs, that transporting oxygen and carbon dioxide affects the ability for gas exchange in an individual.
RBCs carry and transport oxygen to various body parts and then carry back carbon dioxide from different parts of the body to the lungs for gaseous exchange but with less number of RBCs leads to impair or decreased gas exchange in the case of anemia.
Fishes, amphibians and reptiles are examples of invertebrates.
True
False
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Answer:
False
Explanation:
Animals can be classified as either vertebrates or invertebrates. Vertebrates are animals that have a backbone inside their body. The major groups include fish, amphibians, reptiles, birds and mammals. Invertebrates don't have a backbone.
What is this a picture of
chromatin
sister chromatids
homologous pair
single strand of DNA
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Explanation:
sister chromatids
Soil formation is most influenced by. wind speed
air pressure
cloud cover
Rain fall
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4. Mangrove seeds are different from most seed because they____
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Answer:
tdyrdrfiygogiuhuy
Explanation:
gogoygoygiu
how can scientists use fossil records from locations around the world to determine geologic timescale
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Answer:
I dont know this i will next year im just in 8th grade
Explanation:
What causes the stars to seem to disappear in the city skyline at night?
Оа
Small buildings
b
The sun
The moon
ос
Od
Light pollution
Answers
Stars seem to disappear from the city skyline at night due to light pollution caused by artificial lights.
What is light pollution?It is the excessive or less use of artificial light that disrupts the natural patterns of wildlife, disrupts human sleep, and conceals the stars in the sky.
Why do stars disappear from the city skyline?It is because in the city skyline there is excessive use of artificial lights and there is not a portion left which is not encroached by artificial lights.
Hence, option d) light pollution is the correct answer.
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HELPPP!!! ASAPPP!!!
Which type of feather gives the bird its color?
down
barb
contour
flight
Answers
it contour
I hope it work
Contour type of feather gives the bird its color. Therefore, the correct option is C.
The outer feathers that give a bird its color and general appearance are known as contour feathers. The barbs on the branches that make up the central shaft of these feathers join to form a strong, streamlined structure. The barbs have their own little branches, known as barbules, which contain pigments that help give the bird its color.
The diverse colors and patterns seen on many bird species are determined by the arrangement and color of pigments in the barbules of contour feathers. Therefore, contour feathers are important in determining a bird's color.
Therefore, the correct option is C.
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What does atomic number tell you about an atom? * Number of electrons in the nucleus Number of protons and neutrons in the nucleus Number of protons in the nucleus Number of electrons in the electron cloud around the nucleus *NEED ANSWER QUICKLY*
Answers
Answer:
Number of protons in the nucleus
Answer:
Number of protons in the nucleus
Explanation: