True or False and if false correct the statement: Antigen-antibody responses are normally non specific.
Answer:
False
Explanation:
Antigens are usually found on the surface of pathogens and are unique to that particular pathogen. So that means that they are specific to that pathogen.
Answer:
False
Explanation:
I looked it up
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.
What role do plankton play in the oxygen cycle ?
Answer:
Phytoplankton are some of Earth's most critical organisms and so it is vital study and understand them. They generate about half the atmosphere's oxygen, as much per year as all land plants.Phytoplankton also form the base of virtually every ocean food web. In short, they make most other ocean life possible
Why are bullets shot into a barrel of water for testing?
Answer:
One of these specifications is a characteristic known as rifling, which refers to the spiral lands and grooves placed into the firearm's barrel to impart a spin on the bullet for accuracy. ... Examiners generally test fire into a water recovery tank to obtain comparison bullets for evaluation under the microscope.
gametes have...
a. homologous chromosomes
b. twice the number of chromosomes found in body cells
c. two sets of chromosomes
d. one allele for each gene
PLZZZZZ HELPPPP
Answer:
A homologous chromosomes
Answer:
D. One allele for each gene
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
can sinus spread through sexual contact?
plz say the correct answer those who dont know dont reply ok
thank u!
Answer:
No, sinus can not spread through sexual contact but Individual may take precaution.
Explanation:
You can't spread them to other personalities. Bacterial sinus diseases are less constant. Bacteria generate less than 2 percent of sinus diseases. It's suggested that people with sinus infections avoid straight contact (for example, through kissing) with those who are more likely to a contaminant, for example, children, the aged, and those who have exhausted immune systems to decrease the possibility of transporting bacteria, fungi, and viruses to other people.
.......... is the branch of science that deals with matter, energy, light etc.
Chemistry
Biology
Physics
Geology
Answer:
The correct answer is - Physics
Explanation:
Physics is the branch of science that is an organized study of matter, motion, light, energy, and its behavior in time and space. All these states in the observable universe and their effect is studied in detail in physics.
Physics is one of the basic and fundamental disciplines of science like biology, chemistry. Many other streams or filed of science are based on physics such as chemistry, oceanography, seismology, and astronomy.
Thus, the correct answer is - Physics
Where can epithelial cells be found?
Answer:
they line the outer surfaces of organs and blood vessels
Explanation:
A biotechnology researcher might work on what?
1. Creating biofuels
2. Designing new hospital beds
3. Testing blood for disease
4. Using MRI machines
Answer:
A biotechnology researcher might work on creating biofuels (First option).
Explanation:
A biotechnology researcher, or biotechnologist, has the ability and tools to use organic matter and living beings for the manufacture of products, applying the technology.
A biotechnologist can work in the agricultural industry, pharmaceuticals, or developing products for environmental protection, such as biofuels.
Biotechnology is a science applied to the manufacture of new and sustainable products, through molecular and biochemical research of organic material, plants and animals, for this purpose.
The other options are not correct because:
2. The design new hospital beds depends on hospital engineering.
3. Testing blood for diseases are performed by a bioanalyst or laboratory technician.
4. Using MRI machines is performed by a radiologist or radiology technician.
Answer:
A: Creating Biofuels.
Explanation:
PLEASE HELP !!!!!!!!!! FORENSIC SCIENCE
1.) At least three physical properties for each piece of evidence. For pieces of evidence that are in the form of a representation, like a cardboard cutout, list possible physical properties that a real version of the item might have.
2.) At least two sentences explaining why you think it would or would not be useful to determine the chemical properties of any of the evidence.
3.) A paragraph discussing the class or individual characteristics of each piece of evidence.
A: What are their possible class and individual characteristics?
B: How could you use those in the investigation?
Explanation:
Determining a substance's physical or chemical identity. What are the two main requirements for identification? The adoption of testing procedures that give characteristic results for specific standard materials and the number and type of tests needed to identify a substance to exclude all other substances.
If mongoose were removed from this simple food chain, what effect would that have on the snakes?
Answer: they would be dead
Explanation:
Answer:
Mongoose are opportunistic feeders that will eat birds, small mammals, reptiles, insects, fruits, and plants.
Explanation:
so, if they are removed, there would be a population crisis. there would be too many snakes to control because the mongoose are one of the animals groups that eat snakes. the snake population increases. less mongoose= more snakes
Why is the wet bulb temperature different from the dry bulb temperature?
Answer:
The rate of evaporation from the wet bandage on the bulb, and the temperature difference between the dry bulb and wet bulb, depends on the humidity of the air. The evaporation is reduced when the air contains more water vapor.
Explanation:
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
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:
Lowercase letters represent _______________ alleles.
A] Recessive
B] Dominant
Answer:
recessive
Explanation:
think of it this way large uppercase letters are more dominant vs. small lowercase recessive letters. dominant large and overpowering recessive small and easy to shadow.
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.
The lesson of the Kaibab ?
Answer: kaibab
Explanation:
In addition to visible light, astronomers observe
•all of the answers are correct
•ultraviolet light
•gamma radiation
•x-ray
Answer:
all of the answers are correct
Cacti are plants that live in extremely dry environments. Unlike most other plants, cacti do not have regular leaves, but instead, have spines. They do have green stems. How would the lack of regular leaves help cacti survive in their environment
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 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
What is the process of making qualitative and quantitative observations?
Answer:
To make a qualitative observation would mean making high quality observations, and quantitative observations would be making as many observations as possible.
Explanation:
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.
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:
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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.
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
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:
Fill in the blanks with the correct number. Mitosis results in ___genetically identical cells
Meiosis results in _____ sex cells
Answer:
1. Mitosis results in two genetically identical cells
2. Meiosis results in four sex cells
Answer:
Two genetically identical cells
Which of these is an example of mutualism
A. Cattle egret eats the exposed insects as the cattle graze
B. Honeybee pollinates a flower while gathering nectar
C. Tick gains nourishment by sucking blood from a dog.
D. Two bucks fight to gain territory and to gain a mate.
Answer: B. Honeybee pollinates a flower while gathering nectar.
Explanation:
Mutualism is the idea that both organisms benefit from an interaction. In example B, the honeybee benefits because they receive nectar, while the flower benefits in being pollinated.
Answer:
B. Honeybee pollinates a flower while gathering nectar
Explanation:
As the bee collects nectar, the flower pollinates hence both the flower and the bee gain from each other