Immune surveillance, which also includes cancer immunoediting, refers to a host cells defense process wherein the immune system detects and gets rid of dangerous invaders.
By releasing stored and induced ANTIMICROBIAL PEPTIDES, chemotactic proteins, and cytokines, cutaneous mast cells, LANGERHANS CELLS, dendritic cells (DCs), and macrophages offer an early warning system. Natural Killer Cells (NK Cells) are big lymphocytes that attack and destroy bacteria as well as any transport tissues host cells that are infected with viruses or cancer. They are responsible for immune monitoring. T and B cells are the immune cells of the adaptive immune response, while NK cells are a part of the innate immune response since they do not require activation. antigen-presenting phagocytic cells are one kind.
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1. You have set up a cell-free transcription system in a test tube. By mixing DNA, RNA polymerase, sigma factors, ribonucleotides and other essential substances you are able to make mRNAs identical to those made under a variety of conditions in the cells from which these components were isolated. What would happen if you were able to remove the sigma factor first added to the tube and replace it with another sigma factor
Answer:
Different messenger RNAs (mRNAs) would have been produced
Explanation:
Sigma factors are protein subunits that form bacterial RNA polymerases and they are responsible to initiate RNA synthesis. The number of sigma factors is variable between different bacterial species. For example, Escherichia coli contains seven sigma factors, while Bacillus subtilis has at least 17 sigma factors, which control the transcription of different genes. These factors determine the specificity of the RNA polymerase to the target gene promoter regions and then control transcription initiation.
red marrow tissue interacts with which 2 body systems
Answer:
I believe it interacts with the lymphatic system (because it creates lymphocytes) and the circulatory system (because it creates red blood cells).
The color of an object that humans see is actually the ______ of light reflected off the object
Please answer !!!
An object's color is really determined by the light wavelengths that are reflected while all other wavelengths are absorbed.
What is light reflection?In this context, color refers to the various light wavelengths in the visible light spectrum that are seen by human eyes.
An item is viewed as black if it absorbs all the hues of white light, as demonstrated in the following illustration. A white item will evenly reflect all shades of white light.
The light waves that an item reflects determine its "color." This is governed by the configuration of electrons in the atoms of that substance, which, in accordance with complex quantum principles, will absorb and reemit photons of a certain energy.
Therefore, an object that humans see is actually the wavelengths of light reflected off the object.
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The __ is a series of geologic processes in which rock can form, change form one type to another, be destroyed, and form again.
Answer:
rock cycle
Explanation:
A "healthy ecosystem" can also be described as
What are herbaceous an is it a flower?
Answer:
Herbaceous plants are plants that have non-woody stems. (Like annuals and biennials).
Toxicology is used to determine
A. the classification of a pathogen
B. the vectors of a disease
C. how poisonous a substance is
D. what emerging viruses can cause disease
Other:
Write a paragraph about how one would go about eradicating malaria in West Africa.
Answer:
Africa needs to urgently put a number of additional measures in place to speed up these advances, and to move towards eliminating the disease. These include accelerated investment and deployment of vaccines, new diagnostic tools, new funding strategies for malaria control and keeping in check the drug and insecticide resistance challenge.
Explanation:
A train travels 800 kilometers in 6 hours. What is the average speed of the train?
Answer:
The average speed of train is 133.33km/hr.
Explanation:
We know that
Average speed= [tex]\frac{Total distance}{Total time}[/tex]
So,
average sped of the train = [tex]\frac{800 Km}{6 hr}[/tex]
= 133.33km/hr.
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1, Which of the following is not an organelle within a cell ?
A, nucleus B,chloro plast C ,mitochondria D, Cytoplasm
Answer:
B.chloroplast
Explanation:
chloroplast is gained from the sun through the cytoplasm organelle
ANSWER THIS FOR 20 POINTS!!!
Answer:
Thermometer with rhotomer
Explanation:
If mRNA had the codon GUA, what amino acid does that code for?
Answer:
Valine
Explanation:
This question is describing the process of translation, which is the second stage of protein synthesis. Translation is the process whereby mRNA sequence is used as a template to produce an amino acid sequence or protein.
The mRNA sequence is read in a group of three nucleotides called CODON. Each codon specifies an amino acid. According to this question, using the genetic code provided for us in a tabular form in this question, a mRNA codon as follows: GUA will code for VALINE amino acid.
What is one of the biomolecules for which nitrogen is needed (hint: they help build muscles)?
One of the biomolecules for which nitrogen is needed and that build muscles are the proteins, and the nitrogen is also found in the DNA and RNA that are present in the cells.
What is the significance of the nitrogen in the protein?Proteins play many important roles in the body, including building and repairing tissues, and nitrogen is a critical component of proteins, as it is incorporated into the molecule as a part of the amino acids. Without nitrogen, proteins would not be able to form and perform their many important functions so a diet that is rich in protein is important for athletes and bodybuilders to build and repair muscle tissue.
As a result, of the biomolecules for which nitrogen is needed and that build muscles are the proteins, and the nitrogen is also found in the DNA and RNA that are present in the cells.
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DNA is copied during the S Phase of Interphase. Why do cells copy the DNA?
Answer:
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells. Then, at a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division.
Explanation:
Which blome could an animal who hibernates in
the winter to survive the cold live in?
Answer:
Tundra
Explanation:A tundra is mostly Antarctica or the Arctic or mostly an area that's covered with loads of ice and snow.Arctic tundra is a very cold, windy, and treeless biome that's snow-covered for much of the year.
Importance of using hand lens in classification of organisms
Answer:
hand lens is used to make small object to appear larger hence visibility is easily attained
Why would you expect to find a great deal of
parenchyma tissue in the roots of plants such as the
carrot, beet, and radish?
Answer:
Parenchyma tissue makes and stores food. Because the roots of carrots, beets, and radishes store food for plant, one would expect to find large amounts of parenchyma tissue in these parts.
GIVING BRAINLIEST> NEED HELP
Do the plants and animals on a farm make up an ecosystem? Why or why not?
Answer:
Yes they do
Explanation:
Animals and plants make up a ecosystem because the animals feed off the plants and the animals feed off of other animals.
Answer:
All living things in ecosystems are part of a food chain. A food chain is how energy is passed between things. farms are ecosystems. Farmers work with crops, animals, soils, and the weather to grow our food.
Explanation:
Which statement correctly describes these broken pieces of the sample
What is the main body system affected from sickle cell anemia?
Answer choices:
Digestive System
Nervous system
Circulatory System
Respiratory system
Muscular System
Skeletal System
Answer:
Any and all major organs are affected by sickle cell disease. The liver, heart, kidneys, gallbladder, eyes, bones, and joints can suffer damage from the abnormal function of the sickle cells and their inability to flow through the small blood vessels correctly.
Explanation:
Answer:
The main body system affected by sickle cell anemia is the Circulatory system.
Explanation:
According to John Hopkins Medicine (a reliable source), "Any and all major organs are affected by sickle cell disease. The liver, heart, kidneys, gallbladder, eyes, bones, and joints can suffer damage from the abnormal function of the sickle cells and their inability to flow through the small blood vessels correctly."
Which statement about how geologists study the ages of rock layers is true?
The law of superposition means that older rocks are on top.
Geologists can find the exact age of a rock by looking at its relative position.
The principle of original horizontality provides the basis for the law of superposition.
Relative age can be determined by using the concept of unconformity.
Answer: The principle of original horizontality provides the basis for the law of superposition.
Explanation:
The law of superposition in geology suggests that the rocks or sediments which are newly formed due to erosion and sedimentation of the original rocks lie above the old material. This law is supported by the principle of original horizontality according to which the newly formed sediments suspend horizontally in the layers of rocks and sediments under the effect of gravity. Thus an horizontal strata distinguishes the old and the new material.
Answer:
c
Explanation:
I took the quiz and got it right
An ion of aluminum has a charge of 3+. The ion contains 10 electrons. How many protons does a neutral atom of aluminum possess?
Answer:
13 protons
Explanation:
Aluminum, which has a symbol of Al, is an element in group 3 of the periodic table. It has a mass number of 27. Since the number of electrons and protons in a neutral atom are the same, a neutral/uncharged atom of aluminum contains 13 electrons, 13 protons and 14 neutrons. Note: Mass number = no. of protons + no. of electrons.
However, according to this question, an ion of aluminum has a charge of 3+, this means that an atom of aluminum has lost 3 electrons i.e. 13 electrons - 3 electrons = 10 electrons. Hence, aluminum atom with charge +3 will have 10 electrons. This doesn't change the fact that aluminum atom in a neutral state possesses 13 protons.
Help please!!! The answer doesn’t need to be long.
Answer:
The correct answer is - due to unicellular structure and some characteristics similar to both plants and animals.
Explanation:
Euglena is classified as the protoctists and they perform photosynthesis with the same basic process that plants use but they are able to move around and eat like animals too.
They are not classified as plants or animals as they are unicellular which means they are composed of only one cell, In order to be classified as a plant or animal, an organism has made of more than one cell.
Due to its unicellular body and characteristics similar to both plants and animals they are called protists.
Which of the following is an organic molecule?
Answer:
"Organic molecules have carbon atoms. Lithium Fluoride (LiF), water (H2O), and sulfer dioxide (SO2) have no carbon atoms
C3H8 (propane), because it has 3 carbon atoms'
Explanation:
Please help!!!!!!!!!!!!!!!
Answer:
D
Explanation:
Brainliest?
Which of the following is NOT an example of a primary consumer?
A. Maple trees
B. Caterpillars
C. Cows
D. Horses
Answer:
It would be A - Maple trees.
This is because Caterpillars, Cows, and Horses are all primary consumers as they all eat things. Also, primary consumers are herbivories, and carnivores are secondary consumers.
Explanation:
- Eijiro <3
An increase in heart rate (your heart pumps faster) results in...
Answer:adreninal rushes after doing workouts
Explanation:
Explanation:
it can mean that your are running or moving around or that you are having adrenaline rush or just did cocain or so other drug
Genetic drift is a process that causes
A. organisms to have the same DNA as their parents
B. the genetic makeup of an entire population to change
C. the genetic makeup of an entire population disappear.
D. organisms to better adapt to their environment.
When the person from number one was creating "true breeding" lines of plants for certain traits, what method was used?
Complete question:
When the person from number one was creating true-breeding lines of plants for certain traits, what method was used?
A. Self pollination over and over again while discarding plants with unwanted traits
B. Cross-pollination over and over while discarding plans with unwanted traits
C. Allowing for cross-pollination by bees
D. Not allowing the plants to pollinate at all
Answer:
A. Self pollination over and over again while discarding plants with unwanted traits
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Life on Earth has been influenced by what three large scale processes.