Answer:
The correct answer is biological.
Explanation:
When any pathogen invades the body, it has to pass several lines of defence. The first barrier is the skin and mucous membrane which is a physical and chemical barrier. The second line of defence is the non-specific response by macrophages, neutrophils and interferon. After crossing these two barriers the third line of defence comes into action in which, the B- cells and T-cells act specifically on the pathogen and destroy it.
Answer:
[tex]\huge\boxed{\sf Biological}[/tex]
Explanation:
When first and second line of defense is passed by the bacteria, the third line of defense will come into action which is a biological barrier which includes antigen which are anti-bodies generating substances.
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807brief summary of conservation of forests & wildlife
least 10 page
With the advent of industrialization, several trees have been cut at an alarming rate for raw materials and various other purposes. This felling of trees can be regulated by selective cutting, clear-cutting and shelterwood cutting.
Forest fires are one of the common causes of loss of forests. Sometimes the forest land is set on fire to make the land available for commercial purposes. Once cleared, there can be no vegetation. Natural forest fires are also responsible for the destruction of huge forest covers. Latest fire fighting techniques should be adopted to conserve the forest. However, forest fires are an important part of the ecosystem and it helps replenish nutrients in the soil from dead and decaying matter.
More trees should be planted to increase the forest cover. Trees should be selected according to the geographical conditions of a particular region and proper care should be taken during the growth of trees.
Prevention of exploitation of forestry and forest products is necessary for the conservation of forest.
The existing forests should be protected from diseases by spraying chemicals, antibiotics or development of pest-resistant strains of trees.
1. Which is a source of genetic variation?
a. Mutations
b. artificial selection
C. exponential growth
d. genetic bottlenecking
Answer:
Mutation is a source of genetic variation
Answer:
Mutations
Explanation:
Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. Another source is gene flow, or the movement of genes between different groups of organisms. Finally, genetic variation can be a result of sexual reproduction, which leads to the creation of new combinations of genes.
how does the mitochondria produce energy for the cell
do aquatic animals living underwater can hear the sound produced outside the surface if water
Answer:
Believe it or not mammals like seals and pinnipeds otters and polar bears can but underwater animals hear very poorly
Explanation:
Which location will cost the most for mining and reclamation at the end of the mining period?
Location 1
Location 2
Location 3
Location 4
The cost of mining and reclamation for location 4 will cost the most at the end of the mining period.
Location 4 will cost the most for mining and reclamation at the end of the mining period because the cost of mining and reclamation of the location 4 is $7,000 per 65 daysWhile on the other hand, the cost of mining and reclamation of location 1 is $5,000 per 30 days, location 2 is $4,500 per 45 days and location 3 is $3,500 per 120 days.So from this information we can conclude that the cost of mining and reclamation for location 4 will cost the most at the end of the mining period.Learn more about mining here: https://brainly.com/question/5934586
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Options are given below:
1. $100,000$10,000$5,000 per day30 days
2. $35,000$6,000$4,500 per day45 days
3. $30,000$7,500$3,500 per day120 days
4. $40,500$8,000$7,000 per day65 days
The only system that does not pass through the thalamus on its way to the cerebral cortex is the __________ system. A. Tactile B. Gustatory C. Olfactory D. Visual.
The cerebral cortex process the information delivered by the thalamus, the information is related to the senses.
The only system that does not pass through the thalamus on its way to the cerebral cortex is the olfactory system.
The systems that pass through the thalamus are:
1. The visual sensation or information passes through the visual occipital cortex. It then delivers the information from the thalamus to the cerebral cortex.
2. The gustatory cortex is the region of the cerebral cortex, which is responsible for the senses of tastes and flavor. It also passes through the thalamus on its way to the cerebral cortex.
3. The tactile system includes the senses of touch. It is the information received through the receptors present on the skin. It also delivers the information to the cerebral cortex via the thalamus.
4. The olfaction system is not involved in the thalamus pathway. The olfactory cortex is present in the temporal lobe, which is not routed through the thalamus.
Thus, the correct answer is Option C.
To know more about the olfactory system, refer to the following link:
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Answer:
C. Olfactory
Explanation:
What organelle is instrumental in holding the instructions to make proteins and controlling most of the cell
functions?
O nucleus
O ribosome
O endoplasmic reticulum
O mitochondria
Answer:
nucleus
Explanation:
draw the flow chart showing the sequential order of reproductive stage and fertilization
The sequential order of reproductive stage and fertilization starts with the
male and female sex cells being produces through meiosis. The male sex
cell which is the sperm is produced in the testes while the female sex cell
which is the egg is produced in the ovary.
During copulation, the sperm cells are released into the vagina which then
swims through the cervix and uterus to the fallopian tubes where the
fertilization occurs.
There is then movement of the zygote formed from the fertilization to the
uterus where development occurs.
Please refer to the attachment .
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Which statement best describes the use of a catalyst in a fuel cell? It reduces waste. It lowers energy requirements. It reduces toxic exhaust. It increases reaction rates.
The statement that best describes the use of a catalyst in a fuel cell is : ( D ) It increases reaction rate
A catalyst in a fuel cell speeds up/facilitates the rate of reaction of oxygen and hydrogen especially at the oxygen electrode of the fuel cell.
Generally catalyst is any substance that increases the rate of a chemical reaction without been used up in the process, while lowering the activation energy required to kickoff the reaction.
Hence we can conclude that the statement that best describes the use of a catalyst is that it increases the reaction rate
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Answer:
The answer is D
Explanation:
EDGE2022
Which of the following statements is true about the role of water in cellular respiration?
Answer:
The correct answer is " It is one of the ending compounds."
Have a good day!
Explanation:
• What is chlorophyll ?
Explanation:
[tex] ♛\large\tt{answer} [/tex]
A green pigment in leaves which helps to capture the sun's energy
chlorophyll is the green coloured pigment and the most significant among photosynthetic pigments five types of role of error found in higher plants and elegant they are chlorophyll a, b ,c ,d and e are among these chl-a is the universal photosynthetic bacteria role of is also widely distributed in RBI approved and again but absent in some algae chlorophyll a and CHL blue green and yellow green in colour respectively Chlorophyll found and photosynthetic bacteria also they are Bacteria chlorophyll A and B 650 and 600 chlorophyll pigment are soluble in organic solvents
What is the Spitzer telescope's primary function?
Answer:
The Spitzer Space Telescope, formerly known as the Space Infrared Telescope Facility, is an infrared telescope that studies the early universe, young galaxies and forming stars, and is used to detect dust disks around stars, considered an important signpost of planetary formation. Jul 30, 2008Explanation:
Hopes this helps. Mark as brainlest plz!
Question
Tell whether x and y show direct variation. Explain your reasoning. If so, find k.
8=xy
Answer:
PREGUNTA:
INDICA SI XEY MUESTRAN VARIACIÓN DIRECTA .EXPLICA TU RAZONAMIENTO .SI ES ASI, BUSQUE K.
8=XY
Explanation:
ESPERO QUE TE AYUDE
The ____ of the material caused ____________ of the layers beneath.
PLEASE HELP ASAP! Best answer will get brainliest! (Earth Science)
Answer:
The layers of Earth provide geologists and geophysicists clues to how Earth formed, the layers that make up other planetary bodies, the source of Earth’s resources, and much more. Modern advances have allowed scientists to study what lies beneath our feet in more detail than ever before and yet there still remains significant gaps in our understanding.
Explanation:
Hope it's help
If spindle microtubules fail to bind some kinetochores in meiosis, then most likely: _____________
a. excessive cell divisions will occur resulting an increase in the chromosome number known as polyploidy.
b. the resulting cells will not receive the correct number of chromosomes in the gametes, a condition known as aneuploidy.
c. new microtubules with more effective binding capabilities to kinetochores will be synthesized to compensate for the defect.
d. the defect will be bypassed in order to ensure normal chromosome distribution in the new cells.
Thick hair is dominant to thin hair and brown eyes are
dominant to blue eyes. If a man that is heterozygous
for thick hair and brown eyes and a woman is
heterozygous for thick hair and brown eyes, what is
the chance that they would have a baby with thin hair
and blue eyes?
Answer
1/4
Explanation:
1/4 properbility
According to the dichotomus key, organism four is an?
Answer:
Did you know when you add 1 to 1 it will become 3In Mendel's experiments with pea plants, the allele for tall pea plants was dominant and the allele for short pea plants was recessive. When did Mendel see short pea plants?
A. when the plants had two dominant alleles for height
B. when the dominant allele for tall plants was not present
C. when the plants had both a dominant allele and a recessive allele
D. when the pea plants produced yellow seeds
PLS HELP!
Answer:
B
Explanation:
if the reccesive trait is what you want then you cannot have any dominant alleles present
. What is the width of Grandmother’s pelvis, measuring from the pelvic brim? How does her pelvis differ
from Grandfather’s?
The width of Grandmother’s pelvis, measuring from the pelvic brim is 2cm.
The grandmother has a wider pelvis than the grandfather.
The pelvic brim is found at the edge of the pelvic inlet and measures around
2cm. The pelvis in females are always wider than those found in males. This
is due to the adaptation of the female pelvis to child birth.
The pelvis being wider aids the passage of the foetus from the womb and
eases childbirth. This is the reason why the grandmother has a wider pelvis
than the grandfather.
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why are there political battles over the budget
Which statement is true about the law of reflection?
The angle of reflected light is the same as the incoming angle of light.
The angle of reflected light distorts the image to appear larger or smaller.
The angle of reflected light is smaller than the incoming angle of light.
The angle of reflected light is larger than the incoming angle of light
Answer:
The law of reflection defines that upon reflection from a smooth surface, the angle of the reflected ray is equal to the angle of the incident ray, with respect to the normal to the surface that is to a line perpendicular to the surface at the point of contact.
The reflected ray is always in the plane defined by the incident ray and the normal to the surface at the point of contact of the incident ray.
The images produced by plane mirrors and curved mirrors can be understood by the law of reflection.
Law of reflection is defined as:
The principle when the light rays falls on the smooth surface, the angle of reflection is equal to the angle of incidence, also the incident ray, the reflected ray, and the normal to the surface all lie in the same plane.
What is Reflection of Light?
The process through which light rays fall on the surface and gets bounced back is known as a reflection of light.
Explanation:
Answer: The angle of reflected light is the same as the incoming angle of light.
Explanation:
The law of reflection states that the incident ray, the reflected ray, and the normal to the surface of the mirror all lie in the same plane. The angle of reflection is equal to the angle of incidence.
1
The observation by Darwin that finches of different species on the Galápagos
Islands have many similar physical characteristics supports the conclusion that
these finches *
(1 Point)
A.all eat the same type of food.
B.originated from a common ancestor.
C.have the ability to interbreed.
D. acquired traits through use and disuse.
No links or bots please and thank you
Answer:
D
Explanation:
I think it was to do with beak lengths
What would be the phenotype of a frog if yellow toes is dominant and the frogs genotype was Yy?
Yellow
Or
Not yellow
Yellow because if yellow toes is dominant and you have Yy then it will have yellow toes
A student claims that some animals form groups to increase their chance of surviving.
Which piece of information does the student need to support their claim?
O A. the types of animals that live in groups
B. survival rates of animals alone and animals that live in groups
O c. predictions about which animals will benefit from living in groups
D. behavior differences between animals that live alone and animals that live in groups
Answer:
B
Explanation:
It shows the survival rates of animals, that live alone vs the ones that live together. If this piece of data supports his claim then it will strengthen his/her claim.
Why do you have to determine the total magnification when observing a specimen under the compound microscope?
Answer:
To clearly see specimens under the microscope, and to be able to see two separate objects that are close together.
Explanation:
A microscope is a tool that makes an object look bigger so that the person who is looking at it can see it. It's important to use a microscope because cells are usually too small to see with the naked eye. In addition to magnification, microscopes also have resolution, which is the ability to see two objects that are close together as separate. A microscope needs both magnification and resolution to be able to clearly see specimens under the microscope. When the light microscope bends light at the specimen, it gives the viewer a clear picture of the specimen. A series of lenses do this.
please help
20 points
77. Select the words from the word box below to complete the statements.
whales and dolphins navigating underwater with sound waves is called what?
which best describes the homes in which peasants lived?
Answer:With more money, peasants were able to afford better housing and many now lived in wattle and daub houses. Wattle and Daub houses were taller and wider than the simple stick and straw houses. They also offered better protection from the weather.
Explanation:
PLEASE!!!! Which option identifies the satellite technology best utilized in the following scenario?
A forest management company that is not concerned about time-sensitive problems uses a standardized
internet satellite mapping system to get a rough sense of the status of wooded areas that are normally
inaccessible to all but skilled hikers.
Answer:
standardized
internet satellite mapping system
Explanation:
it says it right in the senario its standard mapping satalite technology
Which of the following cooking methods is tailor-made for preparing a rib eye steak?
-frying
-marinating
-grilling
-roasting
Grilling is an excellent cooking method for preparing a rib-eye steak. Grilling can eliminate any type of bacterial contamination.
Grilling is a cooking method used to eliminate any type of harmful microorganism (e.g., bacteria).
This method (grilling) involves dry heat which is applied to the surface of the food as radiant energy.
Grilling cooking is a safe mode to eliminate bacterial contamination in meat (barbecue) and vegetables.
Learn more about grilling here:
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