ANSWER FOR BRAINLIEST

Look at the image below.

Answer:

Explanation:

The physical barriers of the immune system prevent infections since they stop or expel any pathogen that enters the body. The skin with its cells tightly packed and characteristics, the endothelia, and mucous membrane, like the one in our nose, are physical barriers. They stop antigens from infecting our body since they can remove them by sneezing, coughing, or shedding.

Answer:

skin contains tightly packed cells

skin is tough, flexible, and waterproof

you cough when a pathogen enters your mouth

you sneeze when a pathogen enters your nose

Explanation:

Answer:

¡Hola! ¡Cómo estás! ¿Te gusta el dibujo de mi gato? XD

Explanation:

Que bien. Y brainliest porfavor?! :D

Answer:

The correct answer is -

1. Leukocyte is the cell that is present in excessive numbers of these cells cause leukocytosis

2. Leukocyte are normally formed elements number in the range of 4,800 to 10,800 cells/mm3 of blood

3. Granulocytes and agranulocytes are classified as types of Leukocyte cells that plays role in immunity

4. Erythrocyte cause polycythemia if present in excess

5. Erythrocyte is a type of cell produced in response to erythropoietin

6. Platelets are responsible for forming from the rupture of a megakaryocyte

7. reticulocyte Immature form of Erythrocyte

8. Erythrocyte is shaped like a biconcave disc

9. Erythrocyte averages 5 million cells/mm3 of blood

10. Platelet involved in hemostasis

Answer: Fe2 ; affinity

Explanation:

Hemoglobin is the specialised protein which are present in red blood cells which gives it the ability to carry oxygen to the tissues and return carbondioxide from the tissues to the lungs.

The hemoglobin is made up of

--> a heme group: this consists of a ferrous iron ( Fe2) and a surrounding porphyrin ring.

--> globin.

As the haemoglobin molecule loads and unloads oxygen (O2) the individual globin chains in the hemoglobin molecule move on each other. When oxygen is unloaded the beta chains are pulled apart, permitting entry of the metabolite 2,3-diphosphoglycerate resulting in a lower affinity of the molecule for oxygen and higher affinity for carbondioxide.

Also, when the partial pressure of oxygen (PO2) in the blood is high, the beta chains move close together, O2 binds to heme in hemoglobin, the ion Fe2 is drawn into the plane of the porphyrin causing a conformational change that is transmitted to adjacent subunits enhancing the AFFINITY for additional O2 binding.

Answer:

This binding causes a conformational change in the receptor which enters into the nucleus and binds DNA to activate transcription

Explanation:

Testosterone is a steroid hormone responsible for inducing protein synthesis and growth of tissues with androgen receptors. Testosterone receptors, also known as androgen receptors, are a class of nuclear receptors activated by binding androgenic hormones (e.g. testosterone) in the cytoplasm, whose binding induces a conformational change of the receptors that are subsequently translocated to the nucleus. Within the cell nucleus, these activated receptors form homodimers that bind DNA in order to promote the transcription of target genes capable of regulating cell growth, cell cycle progression and survival.

Answer:

Yes!

Explanation:

The sperm does ferbilaise the egg. So its Mendel and Gene

Options please! Otherwise how are we supposed to help you, sorry.

Answer:

i think answer is 3 and 4

Explanation:

peristalsis is located at esophagus and in our digestive system

The parts where peristalsis will take place are ; ( C )  parts 3 and 4

Peristalsis is a series of muscle contraction occurring in the digestive system of Humans also these series of muscle contraction can be seen in tubes connecting the human kidney and bladder as well.  

From the diagram parts 3 ( esophagus )and 4 ( intestines ) are part of the human digestive system and peristalsis is very evident in these regions in the human body.

Hence we can conclude that The parts where peristalsis will take place are  3 and 4

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Answer:

false

Explanation:

because I have don't get be few job days people and of will am to a on in the next time we come in for our meeting tomorrow morning to get some the information on how we will be working with our current client on our own so I don't am the a to make do I get have job that I am not going the the process best I I'm you me the chain

Answer:

no it's false.

since chemical change require change in chemical composition of a substance

and mostly a new substance is formed during a chemical change .

and here no such thing is observed so it's not a chemical change

Answer:

The color of the ink that was used and where it came from

Explanation:

i took the test and im like 87% sure this is right

Answer:

true

Explanation:

Answer:

C.

Explanation:

i just did this question 5 minutes ago.

A company recently tested the effectiveness of three new insecticides, and based on the results of the experiment, the company concluded that insecticide X would be the best one to use because it killed a greater percentage of all three species than did insecticides Y and Z, which are in option C.

The insecticide is given for the destruction or killing of the insects, and the intensity of the insecticides varies depending on the insects and their poison. There are three insecticides: X, Y, and Z, and X kills a higher percentage of all ants than the other two, so it is preferred.

Hence, A company recently tested the effectiveness of three new insecticides, and based on the results of the experiment, the company concluded that insecticide X would be the best one to use because it killed a greater percentage of all three species than did insecticides Y and Z, which are in option C.

Learn more about the insecticide here.

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Answer:

1-by transfecting small interfering RNAs against target genes of interest

2-by using comparative genomics strategies in order to infer functional relationships among target genes of interest and homologous genes responsible for virulence in other bacteria (e.g., antibiotic resistance genes)

3- by inducing mutations through site-directed mutagenesis in order to study gene function (i.e., by examining the effects of knockout mutations)

Explanation:

Whole-genome sequencing (WGS), also known as complete genome sequencing, refers to Next Generation Sequencing technologies that allow the obtention of the entire genetic sequence of an organism/cell, which can be used as a reference genome to understand gene function, evolutionary relationships, etc. The information provided by WGS technologies allows making many different types of genetic analyses in order to understand gene function. First, the nucleotide reference sequence can be used to design complementary small interfering RNAs that trigger degradation of target messenger RNAs (mRNAs) by the RNA interference (RNAi) pathway, thereby inhibiting gene function (in this case, inhibiting genes associated with virulence in the bacterial strain). Second, a reference genome is required to perform bioinformatic data analyses in order to identify homologous genes associated with virulence in evolutionarily related bacteria, allowing identify, for example, antibiotic resistance genes or sequence polymorphisms (e.g., single nucleotide polymorphisms, SNPs) associated with gene function. Third, the information provided by a reference genome can also be used to trigger site-directed mutagenesis (for example, by using the highly precise CRISPR-Cas9 genome editing technology) in order to knock out specific genes of interest and thus analyze if the bacterial strain is still infectious.

Answer: The conversation process where nitrogen gas combines with hydrogen to form ammonium ions is known as THE ACTION OF THUNDERSTORMS while when air in the top layer of soil comes into contact with certain bacteria, nitrogen in the air is converted by NITROGEN- FIXING MICROORGANISMS.

Explanation:

About 79% of air is composed of gaseous nitrogen. However, only a few microorganism can make use of this nitrogen. The important sources of nitrogen for plants and most living organisms are the inorganic nitrogenous compounds in soil. In nature, nitrogen is constantly being removed from the soil and returned to it through the NITROGEN CYCLE

Conversation of gaseous Nitrogen into nitrogenous substances such as ammonium and amino-compouds are carried out by:

--> The action of thunderstorms, and

--> NITROGEN- fixing microorganisms.

During thunderstorms, Nitrogen reacts with oxygen to form nitric oxide. The nitric oxide is oxidizes to Nitrogen peroxide which dissolves in rainwater to form nitric and nitrous acid. When these acids enter the soil, they combine with mineral salts to form nitrates. The nitrates then, dissolve in soil water and are absorbed by the plants. These nitrates are converted into plant proteins and become part of the plant body.

Some microorganisms such as the Nitrogen fixing microorganisms are able to absorb nitrogen from the atmosphere and change it into amino-compouds and proteins. Examples of such microorganisms include:

--> the free living bacteria: these include the azotobacter and clostridium

--> the symbiotic bacteria: the rhizobium which is found in the root nodules of leguminous plants

Answer: A

Explanation:

I’m smart duhh

Answer: A

Explanation: It is resonable

Answer:

The correct answer is - Swimmerets.

Explanation:

Swimmerets are small paddle-like appendages that are modified pairs of legs near the rare. or attached to the abdomen. These paddle-like appendages are help crabs to swim and also helps in carrying and aerating eggs.

These are present in lobster, and shrimps as well as swimming crabs. These are the modification of the legs of the crabs in order to better swimming and brooding of the eggs.

Answer:

attacks the outermost phosphorous group of the incoming nucleotide.  

Explanation:

Transcription is the biological process where RNA is formed. As you may already know, RNA is an extremely important nucleic acid for genetic processes and the production of proteins. The transcription has three steps that are called start, elongation and end. In the elongation phase, the RNA strand is growing, at this time, RNA polymerase, which is the enzyme responsible for RNA elaboration, places the nucleotides, in the RNA strand, in the 5' - 3' direction. This enzyme causes the hydroxyl, which makes up the nucleotide at the 3' end of the forming RNA, to attack the phosphorus present in the incoming  ribonucleotide.

Answer:

necesitamos conocer cuales son los motivos que impulsan la fabricación/obtención del producto y/o servicio  

Explanation:

Un proyecto se considera un esfuerzo temporario asociado a un conjunto de actividades las cuales son planificadas de antemano a fin de producir un determinado producto y/o servicio. Por ejemplo, en el área de biología molecular y biotecnología, un proyecto podría consistir en la planificación de las actividades necesarias para sintetizar una hormona en particular (insulina) utilizando plantas como biorreactores. Las etapas o fases por las cuales debe transitar cualquier proyecto de índole tecnológico son: 1-planteamiento de un problema: cual es la necesidad que impulsa el desarrollo del bien y/o servicio; 2-búsqueda de información relacionada al proyecto: en el ejemplo citado, cual es la especie de planta más factible de ser utilizada como biorreactor para producir insulina, cuales son los materiales requeridos para llevar a cabo este proceso, etc; 3-diseño y planificación del proyecto: cuales son los plazos estipulados para la puesta a punto del proyecto, cómo obtener los recursos necesario para llevar a cabo estas actividades, evaluación de los riesgos a los que se enfrenta el producto/servicio, etc; 4-construcción del proyecto: consiste en llevar a cabo las actividades delimitadas en el paso anterior, y 5-evaluación y divulgación: consiste en la obtención final del producto y/o servicio, como así también de las medidas de publicidad (divulgación) que tienen como objetivo crear un nicho de mercado para el producto/servicio.

Answer:

h²o or water

Explanation:

it says I need to have 25 or more characters so this is just my fill in

b

Explanation:

I don't know the explanation

Explanation:

Oxygen is also called a life supporting gas because oxygen is required in the process of cellular respiration.

The given observation best indicates that the phytoplankton provides nutrients to consumers in the ecosystem.

An ecosystem may be defined as a place or an area where organisms of different species are present together and interact with one another for their need.

Phytoplanktons belong to lower trophic levels in the aquatic ecosystem. The organisms of higher trophic levels depend on it for the need of energy.

Therefore, the given observation best indicates that the phytoplankton provides nutrients to consumers in the ecosystem.

To learn more about the Ecosystem, refer to the link;

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Answer:

its continuous

Answer:

most ocean pollution comes from plastic waste and garbage flood

Answer:

Ocean pollution is caused by the introduction of toxic materials and harmful pollutants such as agricultural and industrial waste, chemicals, oil spills, and plastic litter into the ocean waters.

Answer:fałsz

Explanation:

Answer:

False

Explanation:

I just took the test

Answer:

Due to conjugation.

Explanation:

Bacterial genes are able to successfully transfer genes that produce enzymes in eukaryotic cells because of conjugation process. Conjugation is a process by which one bacterium transfers its genetic material or genes to another bacterium or cell through direct contact with it. During conjugation, the bacterial cells serves as the donor of the genetic material, and the eukaryotic cell serves as the recipient that receives the genes.