Answer: Bacterium inhaled from air alongside oxygen can be isolated by mucous membranes and eliminated by multiple immune defenses of the respiratory system.
Explanation:
The respiratory system consists of cilia and mucous membranes which lines the inner surfaces. These surfaces are made up of goblet cells which secrets a layer of sticky mucus. When microorganisms such as bacteria is inhaled along with oxygen, the viscosity and acidity of the sticky mucus inhibits microbial attachment to the underlying cells. The beating of cilia propels the mucus with any trapped bacteria towards the epiglottis where it is swallowed. This process of elimination prevents bacteria from further invading the lower respiratory tract.
Multiple immune defenses of the respiratory system includes:
--> mucosa associated lymphoid tissue (MALT): these includes adenoids and tonsils.
--> lysozyme
--> Surfactants
--> defensin (antimicrobial peptides)
--> alveolar macrophages
The activities of the multiple immune defenses of the respiratory system helps in the isolation and elimination of inhaled bacterium.
Demand of oxygen in water does not increase with increase in
a/concentration of solid waste
b/number of aquatic plants
c/number of aquatic animals
d/rapid flow of water
Answer:
b. number of aquatic plants
Explanation:
The number of aquatic plants doesn't increase the demand for oxygen in water because these plants take in carbon dioxide rather than oxygen. This means that an increase in their number will not trigger an increase demand for oxygen, rather it will trigger an increase demand for carbon dioxide in its dissolved form.
An increase in the concentration of solid waste, increases the demand for oxygen because it is needed for decomposition.
An increase in aquatic animals will increase the demand for oxygen in its dissolved form because aquatic animals take in oxygen to survive.
An increase in the flow of water increases the demand for oxygen because as water flows, it mixes with air. The more rapid it is, the higher the chance to mix with oxygen.
Which process in the Sun's core is responsible for releasing energy in the form of radiation?
A. Nuclear Fission
B. Nuclear Fusion
C. Electromagnetic radiation
D. Radioactive decay
Answer:
B. Nuclear Fusion
Explanation:
The energy from the Sun - both heat and light energy - originates from a nuclear fusion process that is occurring inside the core of the Sun. The specific type of fusion that occurs inside of the Sun is known as proton-proton fusion.
The blood Group of Mother is O. The Blood Group of the Child is B. Man Exonerated If He to Blood Group?
Answer:
If the mother's blood type is O, and the child's blood type is B, a man would be exonerated from paternity if he has blood type A or O.
Explanation:
In the above case, if a mother has blood type O and her child has blood type B, a man can be exonerated from paternity only if his blood type is A or O, and responsible if he is type B or AB.
The blood type is defined by the presence of surface antigens in the red blood cell, called A and B. The presence of each antigen is determined by a gene present on the parental chromosomes.
Blood type A corresponds to the presence of gene A, and its genotypic expression can be A/A or A/O. Type B blood, whose genotype is B/B or B/O, is due to the presence of a gene containing the B antigen. AB blood —due to codominance— has one gene for A and another for B, with genotype A/B. Blood type O, characterised by the absence of surface antigens, behaves like a recessive trait, which only manifests itself in the absence of surface antigens A and B. The genotype is O/O.By making a hypothetical crossing between mother and man, one can observe why he can be exonerated.
Man with blood type O
♂ O|O
♀ O|O
Alleles O O
O O|O O|O
O O|O O|O
The only possibility, in this case, is to have children with type O blood. No chance of children B.
Male with blood type A
♂ A|O
♀ O|O
Alleles A O
O A|O O|O
O A|O O|O
In this case there is a 50% chance that the children will be blood type A and 50% chance that they will be O. No chance of children B.
In the case of a man A|A the result is 100% probability of children A|O, and no probability of children B.
So, a man with blood types A (any genotype) and O, can be exonerated from paternity, since it is impossible for him to have a child of blood type B, when the mother is of blood type O.
Which type of weather might you expect to find if cumulonimbus clouds are present?
light rain or snow
thunderstorms
no precipitation
heavy rain or snow
The largest feature beneath the ocean is the
OA. ocean basin
OB. sea mount
OC. continental shelf
D. mid-ocean ridge I need ur help
Answer:
A. OCEAN BASIN
Explanation:
The largest feature beneath the earth is the ocean basin. Ocean basin is a large geological basin that is below sea level and located before the trenches. Ocean basin covers three quarters of the earth's surface
True or False:
The immune system is designed to protect against pathogens such as microscopic organisms and foreign substances that arise from outside the body
Answer:
True.
Explanation:
Protecting against pathogens such as microscopic organisms and foreign substances that arise from outside the body is the role of the immune system.
Answer:
true
Explanation:
Inside your body there is an amazing protection mechanism called the immune system. It is designed to defend you against millions of bacteria, microbes, viruses, toxins and parasites that would love to invade your body. To understand the power of the immune system, all that you have to do is look at what happens to anything once it dies. That sounds gross, but it does show you something very important about your immune system.
When something dies, its immune system (along with everything else) shuts down. In a matter of hours, the body is invaded by all sorts of bacteria, microbes, parasites... None of these things are able to get in when your immune system is working, but the moment your immune system stops the door is wide open. Once you die it only takes a few weeks for these organisms to completely dismantle your body and carry it away, until all that's left is a skeleton. Obviously your immune system is doing something amazing to keep all of that dismantling from happening when you are alive.
Would it be better to use 5 or 50 rose plants in each group?
Choose one answer.
a. Five
b. Fifty
Answer:
50
Explanation:
sorry if its wrong;)
Answer:
5 but i answerd it all ready yesterday
Explanation:
it’s for my final please help me :)
Question #3 - Food Web
Question #4 - Mutalism
Hope this helps :)
Which stage of cell division is different in plant and animal cells?
1)cytokinesis
2)DNA replication
3)mitosis
4)prophase
5)telophase
Answer:
cytokinesis
Explanation: the process of cytokinesis is quite different for eukaryotes that have cell walls, such as plant cells.
How many different types of bases are there in nuclear DNA?
OA. 4
OB. 11
O C.
23
OD. 56
A. 4
the four nitrogenous bases present in DNA are
Adenine(A)Thymine(T)Guanine(G)Cytosine(C)What is the concern of two organisms filling
the exact same niche in the same
ecosystem?
A. The two organisms will compete.
B. One organism will move to a new niche.
C. Organisms often share niches in symbiosis.
Please help!
Answer:
A..
hope it is correct dear
Mark me BRAINLIEST ❤️❤️❣️❣️❤️❤️
Answer:
organisms often share nitches in symbiisis
Which of the following best defines taxonomy?
A. diagram depicting relationships among species
B. The science of identifying, naming, and classifying living thing
C. The science of displaying previously living organisms
D. A diagram depicting the levels of organization within an organism
Answer:
The correct answer would be B. The science of identifying, naming, and classifying living things.
Explanation:
This is the definition of taxonomy.
In biological science, taxonomy is concerned with the identification, naming, and classification of living organisms into various taxa. Thus, option B is correct.
What is taxonomy?Taxonomy is the branch of science concerned with the systematic classification of the organism into various hierarchical organizations. It allows the easy identification and characterization of the species.
It primarily includes a detailed description of the physical, physiological, and anatomical levels. This then proceeds with identification and naming. This allows the scientist to classify them under taxonomical categories and domains like kingdom, phylum, order, genus, etc.
Therefore, the taxonomy identifies, names, and classifies organisms.
Learn more about taxonomy here:
https://brainly.com/question/13255846
#SPJ5
The DNA sequence that produced the mRNA sequence uracil, guanine, cytosine, guanine adenine uracil adenine adenine
Answer:
The DNA sequence that produced the mRNA sequence uracil, guanine, cytosine, guanine adenine uracil adenine adenine during transcription is adenine, cytosine, guanine, cytosine, thymine, adenine, thymine, thymine.
Explanation:
Transcription of DNA into messenger RNA (mRNA) is a process in which the specific nucleotide sequence is transferred from one molecule to another, through the synthesis of mRNA molecules from a DNA strand.
The complete transcription process is done by nitrogenous base complementarity, where mRNA receives the sequence of complementary bases according to the DNA sequence:
Adenine is complemented with uracil, since in RNA the thymine is substituted by this uracil. Thymine is complemented with adenine. Cytosine is complemented with guanine. Guanine is complemented with cytosine.Thus an uracil mRNA sequence, guanine, cytosine, guanine adenine uracil adenine U-G-C-G-A-U-A-A comes from a DNA sequence adenine, cytosine, guanine, cytosine, thymine, adenine, thymine, thymine or A-C-G-C-T-A-T.
student places living cell into a drop of liquid containing a 5% sugar solution. After 30 mins the student notices that the liquid contains less than 5% sugar. explain what had happened
During aerobic respiration, the energy within the bonds of a glucose molecule is released in small amounts in a step-by-step, enzyme controlled reaction. In this process, the energy released is used to
Answer: In this process, the energy released in form of ATP (Adenosine triphosphate) is used to POWER BIOCHEMICAL PROCESSES.
Explanation:
Aerobic respiration is the process by which living organisms breaks down glucose molecule to release energy. Oxygen is used for this process that's why the name aerobic.
Aerobic respiration releases energy within the bonds of glucose step by step in an enzyme controlled reaction. The stages of these processes includes:
--> Glycolysis: In this stage, glucose molecules are split to produce two molecules of ATP and two molecules of NADH (another energy carrying molecule).
--> Krebs Cycle: this is the second stage which occurs in the mitochondria of cells. The 2 ATP molecules generated from glycolysis is used to produce two more ATP, 8 more NADH and 2 molecules of FADH. This makes it a total of 16 energy molecules ( including 2 molecules of ATP from glycolysis).
--> Electron transport chain: this is the last stage of aerobic respiration which takes part at the inner member of the mitochondria. Electrons are transported from molecule to molecule down an electron-transport chain. Some of the energy from the electrons ( NADH and FADH from kreb cycle) is used to pump hydrogen ions across the membrane, creating an electrochemical gradient that drives the synthesis of many more molecules of ATP. As a result 32 more ATP are generated.
In conclusion, a total of up to 36 molecules of ATP from just one molecule of glucose in the process of aerobic respiration which are used to power biological processes.
Ethical perspective of food biotechnology
Answer:
Intervention in God's creation.
Explanation:
''Playing God” is the ethical perspective of food biotechnology because in food biotechnology genetic modification occur which involve human intervention into creation of God and hence, is an unnatural act. Intervention in the God's creation is considered as unethical act of humans. So we can say that food biotechnology has ethical perspective which make it controversial.
Where are earthquakes MOST LIKELY to occur?
0)
A)
close to the equator
B)
along coastal regions
close to the center of tectoníc plates
D)
along the boundaries of tectonic plates
Answer:
D, around the boundaries of the tectonic plates
The practice of cells turning on the production of some enzymes and turning off others in response to a changing environment is called
Answer:
Adaption
Explanation:
In the case when the practice of cells turn on some enzymes production and turn off the others so that the response to the environment i.e. changed is known as an adaption.
In this, the organisms are adjusted according to the environment
So as per the given statement, the adaption is the answer and the same is to be considered
7. Hydrogen fuel cells combine hydrogen and oxygen to produce water and energy. Assume 1 kg of fuel is used, and the mass of the water produced is 1.10 x 10-11 kg. How much energy is produced by this fuel cell? (Hint: Use E = mc2.)
Answer:
this is a hard one
Explanation:
Answer for brainliest
A group of three nitrogen bases in an rna molecule codes for one_____.
1. Specific protein
2. Ribosome
3. Gene
4. Amino acid
Answer:
The correct answer is - 4. Amino acid
Explanation:
A group of three nitrogen bases in an RNA molecule codes known as triplet code that are copied by the DNA sequence by the process of the transcription and this RNA molecule is known as mRNA molecule. Each mRNA molecule has complementary sequences of nitrogenous bases of DNA sequence.
These nitrogenous base present in the mRNA molecule makes a set of three bases to code for a particular amino acid, for instance, AUG codes for methionine amino acid.
If a person believes that dreams have hidden meaning, he or she would agree with Freud's idea about ____ content.
A. manifest
B. hidden
C. latent
D. lucid
What do lactic acid fermentation and alcoholic fermentation have in common?
Select all that apply.
Both processes produce carbon dioxide.
Both processes produce pyruvate,
Both processes are anaerobic,
Both processes occur in the cytoplasm.
Answer:
Both Processes are anaerobic
Explanation:
Answer:
C -Both processes are anaerobic.
D-Both processes occur in the cytoplasm.
Explanation:
Both fermentations occur in absence of oxygen to brakdown glucose.Thus both are anaerobic.
Both the fermentations take place in the Cytoplasm.
I just took the test and its 100% Correct...
Using the following cladogram, put the following organisms in order from most evolved to
least evolved.
Answer:
it is the last one d hope this helps
if an organism has 12 chromosomes and its cell undergoes meiosis, how many chromosomes will the daughter cell have. 12, 6, 24, 48
Answer:
6
Explanation:
the cells combine to form one to form one
Answer:
6
Explanation:
Chromosomes 6 spans more than 170 million base pairs ( the building materials of DNA ) and represent between 5.5 and 6% of the total DNA in cells
Lavon is going to the beach on a hot summer day. He wants to take a bottle of cold water. What material would be best to wrap the bottle to keep the water cool?
1.foil
2.foam
3.paper
4.plastic
Which set of items listed can be arranged to transform chemical energy into mechanical energy? A. motor, fan blades turning, wire
B. magnet, wire, fan blades turning
C. battery, wire, fan blades turning
D. battery, magnet, heat
Answer:
C
Explanation:
your welcome
The set of items which can transform chemical energy into mechanical energy is the battery, wire, fan blades turning. Thus, the correct option is C.
What is energy conversion?
Chemical energy can be converted into mechanical energy by the arrangement of batteries, wire, and fan blades turning. The chemical energy from the movement of ions in the wire causes the movement of fan blades and this turning is a form of mechanical energy.
In a combustion engine, chemical energy is first converted to heat energy that causes expansion of a fluid which results into motion. In contrast, the motor proteins are the molecules which can convert the chemical energy present in the molecules released from adenosine triphosphate (ATP) hydrolysis directly into useful mechanical work.
Therefore, the correct option is C.
Learn more about Mechanical energy here:
https://brainly.com/question/29509191
#SPJ2
Reverse transcriptase is an enzyme utilized by many retroviruses. This enzyme most likely demonstrates which type of activity
Answer:
The activity of speed up the process.
Explanation:
Reverse transcriptase is an enzyme encoded from the genetic material of retroviruses that accelerate or speed up the process of transcription of retrovirus ribonucleic acid into deoxyribonucleic acid. Reverse transcriptase enzyme is also called RNA-directed DNA polymerase. Some retroviruses such as human immunodeficiency virus (HIV) and avian myeloblastosis virus used this Reverse transcriptase enzyme.
organisms which ____ more frequently, such as bacteria and viruses, have higher mutation rates
Answer:reproduce
Explanation:
Organisms which reproduce more frequently, such as bacteria and viruses, have higher mutation rates. Details about reproduction can be found below.
What is the significance of reproduction?Reproduction is the process whereby living organisms produce offsprings so as to ensure continuity of their species.
Living organisms reproduce more often than one another. Bacteria and viruses replicate themselves often than other higher animals.
This means that these organisms will possess a higher rate of mutation than other organisms.
Learn more about reproduction at: https://brainly.com/question/7464705
#SPJ2
A pea plant with round seeds (Rr) is crossbred with another pea plant with wrinkled seends (rr). What is the probability of offspring having a wrinkled seed? (4 points) a 0% b 25% c 50% d 75%
HURRY TIME LIMIT!!!!
Answer:
50%
Explanation:
Answer:
C: 50%
Explanation:
You get Rr, Rr, rr, and rr. 50% out of 100%
A forensic scientist was conducting a genetic investigation and identified a satellite (STR sequence) on a chromosome and constructed the primer CTTGCAA. What is the corresponding template DNA sequence
Answer:
GAACGTT
Explanation:
The corresponding DNA template sequence would be GAACGTT.
A primer is a short nucleotide sequence that serves as the starting point on which bases are added during replication or transcription.
According to the base-pairing rule of DNA, Adenine (A) always pair with Thymine (T) while Guanine always pairs with Cytosine (C).
Hence:
C - G
T - A
T - A
G - C
C - G
A - T
A - T