Answer:
Agriculture
Explanation:
Genetic engineering can be defined as the use of genetic techniques aimed at modifying the genome of living organisms, thereby being used to develop Genetically Modified Organisms (GMOs). In the USA, genetic engineering methodologies have been used in agriculture to improve crop yields and reduce costs (for example, by reducing the need to use pesticides). Some of the most important genetic engineering techniques that nowadays are being used in agriculture research include biolistic transformation, Agrobacterium-mediated transformation, the CRISPR-Cas9 genome editing system, etc.
13.
Which is the most accurate statement?
Humoral immunity is a type of adaptive immunity that results in the circulation of which of the following throughout the blood?
A. antigens
B. macrophages
C. natural killers
D. antibodies
Answer:
Humoral immunity refers to the component of the adaptive immune response that is caused by B cells, antibodies, and type 2 helper T cells (Th2), as well as circulating mast cells and eosinophils to a lesser extent.
Antibodies is circulated throughout the blood in Humoral immunity.
B cells changed into plasma B cells that is responsible for the production of antibodies against a specific microbe such as bacteria and virus etc. The humoral immune system attacks and controls the antigens that are present outside the infected cells. Humoral immunity is also known as antibody-mediated immunity so it is concluded that antibodies provides immunity in humoral immunity system.
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Question 3 (2 points)
A student observes a cell using an electron microscope. She sees a nucleus, a cell wall, DNA, and cytoplasm. She classifies the cell as
prokaryotic. What is one problem with this classification?
Prokaryotic cells never have DNA
Prokaryotic cells do not have a nucleus
Prokaryotic cells never have a cell wall
Prokaryotic cells do not have cytoplasm,
с
Answer:
a
Explanation:
a
Name this structure
A:double helix
B:nucleotide
C:twisted ladder
D:hydrogen bond
Answer:
B.
Explanation:
Contains a phosphate group (yellow), nitrogenous base (green), and pentose sugar (blue).
Can some one help me please
A seed of a plant sticks to the fur of an animal as it walks by.
How has the animal most likely helped the plant?
Answer:
The animal has helped the plant get to another destination
PLS ANSWER How is sunlight important in your life? Describe some of the positive and negative effects of sunlight.
Answer:
Sunlight is important in my life because you need it if you have a plant and you want to take care of the plant.Postive effects of sunlight is Sun water and needing health
Answer:
I know one reason is that plants need sunlight, and without plants we would all die. This is because plants need sun, and if we didn't have plants, we would be robbed of that resource, and then animals who eat the plants would die, so meat would be taken from us as well and we would all DIE.
Which of the following is NOT part of the cell theory
Answer:
B, cells can absorb food and oxygen
Explanation:
The cell theory is the following:
- all cells come from other cells
- cells are the basic unit of life
- all living things are composed of cells
So B would be incorrect!
Hope this helps!
What do you call a change in the environment that causes a response or reaction?
Question 2 options:
photosynthesis
style
stigma
stimulus
Answer:
stimulus
Explanation:
which organ of the female reproductive system produces milk?
A. mammary gland
B. breasts
C. ovary
D. uterus
For stars in the main sequence, which color of stars tend to have higher absolute brightness? (2 points)
The HR diagram is shown with Absolute Brightness on the y axis from negative four to six and Surface Temperature on the x axis from 40,000 to 2,500 degrees Celsius. There are several dots plotted between four and six absolute brightness and 10,000 to 2,500 degrees Celsius labeled Supergiants. There are several dots plotted between 1.5 and three absolute brightness and 7,500 to 2,500 degrees Celsius labeled Giants. There are several dots plotted between negative four and negative two absolute brightness and 30,000 to 7,500 degrees Celsius labeled Dwarfs. Down the middle, there are several dots plotted diagonally from ordered pair 40,000 and five down to 2,500 and negative three labeled Main Sequence.
White stars
Yellow stars
Blue stars
Red stars
Answer:
Blue Stars
Explanation:
Hope this helps :)
Blue stars tend to have higher absolute brightness for stars in the main sequence.
What is absolute brightness?Absolute brightness, also known as absolute magnitude, is a measure of the luminosity of a celestial object such as a star or planet, expressed as an apparent magnitude that the object would have if it were placed at a standard distance of 10 parsecs (32.6 light-years) away from Earth.
It is an objective measure of an object's intrinsic brightness, independent of its distance from Earth. Absolute brightness is a useful tool in astrophysics for comparing the luminosities of stars and determining the distance to remote stars and galaxies. It provides a standardized method of comparison, allowing scientists to study the evolution and distribution of stars and galaxies throughout the universe.
Learn more about absolute brightness, here:
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Different surfaces absorb the Sun’s energy in different ways. These differences have an influence on weather. As the surface of Earth heats up, the air above the surface heats up as well. In certain parts of the Earth, air will heat up more quickly than others.
In which of the following areas will the air above the surface heat the fastest?
A.
the surface of a large lake
B.
the top of a mountain
C.
a puddle of water in your backyard
D.
a paved road on a sunny day
Do you believe your house would be prepared in the event of a tsunami? Why or why not?
Answer:
Yes because we don’t live by an ocean
Explanation:
Answer:
Just say no. If there is a tsunami, the average modern day house would be flooded and sustain significant structural damage. It would not be able to withstand the crushing forces of the water unless it is specially built. Assuming that you don't live in an area where tsunamis are likely, your house was not built that way.
Explanation:
Name a herbivore in this food web.
Caterpillar is one of the herbivores.
Which of the following would be a good example of an index fossil? *
A plant species that lived only in the Amazon Rainforest for 30 million years
A species of lizard found in the Sonoran Desert that lived for 3 million years
A species of dinosaur that lived across all of Pangaea for 50 million years
A species of fish that lived at the bottom of the Pacific Ocean for 150 million years
Answer:
The last one is correct
Explanation:
..............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................the last answer choice is correct
how dose wind cause surface currents
Answer:
Suface currents are mostly caused by the wind because it creates friction as it moves over the water. This friction then forces the water to move in a spiral pattern, creating gyres. In the northern hemisphere, gyres move clockwise; while in the southern hemisphere, they spin counterclockwise.
Definition: This is is a medical procedure used in prenatal diagnosis of chromosomal abnormalities in
which a small amount of amniotic fluid is extracted amniotic sac surrounding a developing fetus and the
fetal DNA is examined.
Answer:
Amniocentesis
Explanation:
It involves inserting a long needle to extract fetal cells from the fetus's surrounding fluid for these diagnostic purposes. It is a risky procedure that has since been widely replaced by cell-free DNA testing.
Before someone is arrested, a suspect is informed of their Miranda rights. Among other things, this informs them of their right to:
A. Legal representation
B. Leave the scene at any point
C. Change their mind about anything their say while being questioned
D. Own registered weapons
explain why different enzymes are required for digestion?
Answer:
Enzymes are essential for healthy digestion and a healthy body. They work with other chemicals in the body, such as stomach acid and bile, to help break down food into molecules for a wide range of bodily functions.
a_fault is from the hanging wall drops down
Answer:
If the hanging wall moves down relative to the footwall, the fault is a normal fault. Normal faults are caused by tensional stress, or stress that pulls rocks apart
Explanation:
During mitosis _____ diploid cell divides to produce ____ new daughter cells. Each of the new cells is also _____
and is _____
to the original cell.
Answer:
gamete, brand , diploid, copy
Veins transport ____ blood.
fill in the blank please
Answer:
Veins transport Deoxygenated blood
Think of an example from your own life such as school, sports, or an extracurricular activity. Develop an analogy to explain why specialization and communication are as important to that activity as they are to a cell
Answer:
In a school environment, there are different teachers who teach a different subject, administration controls all the school functions and affairs other than teaching. Other staff such as janitors, bus drivers carry out necessary functions.
In the schools, there are various specific tasks carried out by specific teaching or non-teaching staff. In the cell, a similar condition found as they show specialization and communication as various cell organelles are specific to a specific function and communicate with one another.
What is the role of the centrioles?
Answer: to help in cell division in animals
Explanation:
Helppp it’s really important
Answer:
option (a) because....,
Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). ... Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA)
option (b) not because,
Within that centrosome there are two centrioles. And centrioles are physical objects made up of things called microtubules.
option (c) not because....,
Centromere repeats in humans are made up of alpha-satellite DNA, a ∼171 bp sequence or monomer that is iteratively repeated. Alpha-satellite monomers are arranged head-to-tail and organized into repeated arrays called higher order repeats (HORs) that range from 0.2 to 5 megabases (Mb) and are chromosome specific.
not option (d) because...,
Centromere repeats in humans are made up of alpha-satellite DNA, a ∼171 bp sequence or monomer that is iteratively repeated. Alpha-satellite monomers are arranged head-to-tail and organized into repeated arrays called higher order repeats (HORs) that range from 0.2 to 5 megabases (Mb) and are chromosome specific.
hope it becomes helpful to you ☺️☺️
good luck
Discuss the mechanisms of speciation
Answer:
There are four major variants of speciation: allopatric, peripatric, parapatric, and sympatric. Speciation is how a new kind of plant or animal species is created. Speciation occurs when a group within a species separates from other members of its species and develops its own unique characteristics.
Write an essay about the dangers of Child Labour. ( 250 - 300 words).
Explanation:
Child labour is the working of children of ages under 18 years old for number of hours that contrast their body growth and affects their health badly. This research is studying the affects of child labour on development of countries and trying to prove that the child labour is cause of delaying of some countries due to its effects on education. To prove that an interviews with labour children’s and their families have been made. More over a lot of statistics have been gathered by me of child labour in several countries from uniceff and international labour organization in addition to world health organization .the results which have been indicated is that most of the child labour found around the world is in the developing countries because children leave schools to work so in the future they become untrained adult can work.
i-Introduction
Child labour is the working of young children under the age of 18 years old for large number of hours and in unsuitable jobs .It was noted that The Child labour it is the work of children in un suitable ages for unsuitable work hours or under unhealthy conditions and under certain circumstances that contrast with their body growth and their education and also their ability for creations (February 2, 1992, The Child Labour Situation) . also it was conducted that child labour is breaking of human rights which obstacle there psychological life and their physical activities (international labour organization ). Further more the child labour is mainly found in the developing countries and in Africa and Asia . some statistics The high percentage of child labor occurs mainly in mali with percentage of 54.5 Burkina Fasowith 51 percent, Niger and Uganda with 45 percent and Kenya with 4L3 percent, the report said.Bangladesh had 30.1 percent, Nigeria 25.8 Haiti 25, Turkey 24, Ivory Coast 20.5, Pakistan 17.7 percent, Brazil 16.1 , India 14.4. China U.6, and Egypt 11.2 percent. (INTERNATIONAL JOURNAL OF HUMANITIES AND PEACE. 1997). After all of that the aim of my study is to show the bad effects of child labour .moreover if the child labour has effects on developing countries in delay in development.
ii-Literature review
a-The meaning of child labour
It was noted that The Child labour is the work of children at unsuitable ages for unsuitable work hours or under unhealthy conditions and under certain circumstances that contrast with their body growth and their education .also their ability for creations (February 2, 1992, The Child Labour Situation) . moreover it was conducted that child labour is the breaking of human rights which obstacle there psychological life and their physical activities (international labour organization ).in addition to that there is a positive meaning of child labour i.e. the children can work with their parents in home ,help in family work or get their pocket money from working in the weekends and in the summer vacations (international labour organization ).
b-Causes of child labour :
there are many causes of child labour the main cause for it is poverty of the families . The international labour organization noted that the poverty of the families is the main cause of child labour because the children have tow work to get money which help in keeping their life and the life of their families . in addition to that the families are not capable to pays funds of the schools . also the children who are living in slums and villages which don’t have any educational facilities so they work .more over the work market are demanding more children to worm because they take low salaries and they are less trouble maker than adults for the employer . furthermore it was noted that The children works due to the poverty of their families so they need income to overcome the challenges of the life as a result they need to send their children to the work to get them money. In the other hand they cant send them to the working fields that give high wages as exportation because of restricting laws so they must send them to works of low wages as agriculture or servings fields. They have to work more hours to increase their income even if some of their brothers or sisters in school their parents get them out and send them to work field( number cruncher Putting children to work,By Stephen Nickell,september 2009 · prospect · 15). In the other hand not all the causes are economic causes some of the are from family where children work with their families in farms , shops and different hand made industries said international labour organization .
Answer: Right now roughly 152 million children are victims of child labour, in over 179 countries across the world. Though many governments have laws in place to protect their youth, much of the world is still suffering from a lack of healthy jurisdiction.
Child labour is defined as work that deprives a person of their childhood. Generally, the legal age at which you are allowed to begin working is 15 - 18. Bolivia has the world's lowest legal minimum age requirement, at just 10 years old. However, the majoroty child labour victims are as young as 5 - 11 years of age.
Child labour has be proven detrimental to the physical health, mental health, and development in youth. Often accompanied with depression, drug dependency, premature aging, malnutrition, etc. We have only just brushed the surface of the true depth and impact this issue has on the individual affected. Time is also a limited resource, and it is estimated $176 billion is lost in potential future wages when children engage in labour instead of completing their education. This goes without mentioning the percentage of deaths among child workers.
Most jobs associated with child labour are extremely harmful. Hazardous conditions occur more frequently, and the risk of being exposed to forced labour, debt bondage, serfdom, and illicit activities such as prostXXXitution, porXXography, or drXXug trafficking greaten significantly. It is estimated that over 1 million children involved in child labour are trafficked globally per year.
Overall, Child labour is a pressing issue affecting hundreds of thousands of lives daily across the world. With the extreme conditions, psychological and physical damage, and other risks associated with child labour, it is hard to deny that it is a violation of human rights.
Luckily there are things you can do to help combat this pressing issue. Organizations like The Bureau of International Labour Affairs (ILAB) and World Vision are working hard and fast to reduce the number of children affected, and to strengthen national policies to protect them. There is still work to do, and it's up to American citizens like us to push for more support by contacting our members of congress and raising our voice on behalf of the millions of children suffering worldwide.
Explanation:
Some of the words are labeled innapropriate by this website, remove the X's from them
would transition metals be in Metal, Nonmetal, or Metalloid?
Answer:
They would be in metals :)
Si se cruza un perro de pelo duro con una perra de pelo suave ¿Cuál será el resultado de la F1 y f2, siendo el pelo duro dominante sobre el suave? Por favor ayuden me
Explanation:
un marrano xx abababajabababdbdbfbx xjxbxbxbzxbxjxjsjss
diary entry
your name is Usain or Cathy Freeman of sunny vale college,suncity your school had interhouse competition for one day at BNZ stadium
Answer:
12th February, 2021 10:30 p.m.
Friday
Dear Diary,
Today I'm very happy as I had won many events in the interhouse competition which was held today in BNZ Stadium.
So, in which I was also selected and our school named Sunny Vale College, Suncity held this interhouse competition in the BNZ Stadium. There were many events such as disc throw, javelin throw, 100 meters sprint, and many more. I had participated in many of the events. I also got the 1st position in 100 meters sprint, shot foot , disc throw and high jump. At last when the event was going to end there was also a wonderful event that was relay race. I had been selected for this group relay and at last our group won the relay race.
It was a very lucky day for me, on this wonderful day of the events held by our school.
Usain .