What type of cell is activated in lymphatic tissue by macrophages presenting antigens during a viral infection?

Answer: C. They cannot reproduce on their own

Explanation:

Viruses enter the cell via endocytosis because they lack the machinery required to reproduce.

They transfer the genetic material to the host cell which causes the cell to create the virus.

Answer:

Hey mate......

Explanation:

This is ur answer.....

Hope it helps!

mark me as the brainliest......

Follow me! :)

Answer:

Herbívoros

Explanation:

Son animales que se alimentan exclusivamente de plantas, pastos, hierbas y vegetales en general. Hay muchos herbívoros que comen huevos y a veces otras proteínas provenientes de animales. Ejemplos de herbívoros: caballo.

Herbivores: They are animals that eat plants,grasses,herbs and vegetables,.Examples of herbivores: cows, deer, or rabbits.

The three main stages of wound healing are: Inflammatory phase , Proliferative phase, Maturation phase

Inflammatory phase: This stage begins immediately after the injury and lasts for several days. During this stage, the body's immune system responds to the injury by sending white blood cells to the site of the wound to fight infection and remove any debris. Proliferative phase: This stage begins a few days after the injury and can last for several weeks. During this stage, new tissue is generated to fill the wound. The wound begins to granulate, with new blood vessels forming to bring oxygen and nutrients to the site. Maturation phase: This stage begins several weeks after the injury and can last for up to two years. During this stage, the new tissue that was formed during the proliferative phase is remodeled and strengthened. Collagen fibers reorganize and align in the direction of stress, making the new tissue stronger.  These stages of wound healing are interdependent and overlap to some degree, and a variety of factors, such as age, nutrition, and underlying health conditions, can affect the healing process.

To learn more about Inflammatory phase here:

https://brainly.com/question/8984296

#SPJ4

The node that is unconnected to any child nodes is referred to as a "leaf" node in the context of tree theory. It is frequently shown as the terminal node or endpoint in a tree structure.

When comparing the available options, "/usr/local/linuxgym-data," "/home/student," "/bin," and "none of these choices," it is unclear which directory is being referenced to as a leaf node. We need to understand the tree's structure and the connections between the directories in order to recognise a leaf node. It is impossible to tell which directory would be categorised as a leaf node without additional knowledge on the tree topology or the precise connections between these directories.

learn more about frequently here :

https://brainly.com/question/17272074

#SPJ11

Molecules that are small and hydrophobic are able to move across the cell membrane via simple diffusion.

Among the few simple small molecules that can diffuse across the cell membrane are water, carbon dioxide, and oxygen (or a type of diffusion known as osmosis ). Diffusion is a key mechanism for material transfer within cells and for the passage of critical tiny molecules across the cell membrane.

Simple diffusion is the movement of tiny, uncharged molecules or molecules that are soluble in lipids into or out of the cell, from regions of high concentration to regions of low concentration .

To know more about the Diffusion please click here : https://brainly.com/question/1594190

#SPJ4

Answer:

Mouth: Closed. Operculum: Opened. Floor of buccal cavity: Raised

Explanation:

When fish breathe out, the mouth closes and muscles raise the floor of the buccal cavity and push in the walls of the operculum. The opercula opens and water is pushed out over the gills' surface.

Hope this helps. :)

The relationship between the crow and the rat is predator-prey.

In a predator-prey relationship, one organism (the predator) hunts, kills, and eats another organism (the prey) for food. In this scenario, the crow is the predator, and the rat is the prey. The crow chased away the rat and ate its food, which means that it hunted and killed the rat's potential food source. Therefore, the relationship between the crow and the rat is predator-prey.

Answer:

The adaptation makes the orchids more desirable to bees, and therefore more likely to be able to reproduce than other plants without the adaptation.

Explanation:

Answer:

The trait being described is the ability to fly in rainy season.

Explanation:

The trait being described is the ability to fly in rainy season. The people with bat wings and people with bird wings are present in the population. The event lead to the change in allele frequency because the population of people with bird wings die due to starvation. Yes, the bat wings were adapted to that environment so they are able to survive. The change make the population less similar to other populations because population of people with bat wings increases as compared to other population. Yes, the new population change for the better of the ecosystem because the population is able to controls the population of other species in the ecosystem.

Answer:

A D C B

Explanation:

Answer:Absorption

Growth

The emergence of the radicle or root

The emergence of the plumule or shoot

Explanation:

took thw test

Answer:

A.thats my answer.

Explanation:

Hope it help☺️

If a disease wiped out the whole population of rats, it would lead to a disruption of the food chain, and many owl species may experience food shortages that would ultimately affect their survival.

Rats are a staple food for many owl species; hence, the extinction of rats due to disease may have disastrous consequences for the owl species.

It's fair to assume that many owl species would face food shortages if their rat population is wiped out due to disease.

In the end, the owl species may also be affected by the disease that kills the rats. A significant number of owl species may die as a result of food scarcity if the rat population is wiped out due to disease.

Owls, however, are opportunistic predators, which means they will feed on other animals if their primary prey is unavailable.

This means that the owls will have to adjust to their diet and find alternative prey items to survive.

Therefore, if a disease wiped out the whole population of rats, it would lead to a disruption of the food chain, and many owl species may experience food shortages that would ultimately affect their survival.

know more about Disease here :  brainly.com/question/1843719

#SPJ11

During the Telophase, the daughter chromosomes reach the poles. Telophase passes into the next interphase as the nuclear envelopes and the nucleoli re-form and the chromatin becomes diffuse.

On the other hand, remember that cytokinesis starts during the nuclear division phase called anaphase and continues through telophase. Cytokinesis is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells.

We can conclude that the correct answers are:

Nuclear membranes reform

and

Cytoplasm divides

A sustained muscle contraction without relaxation that is capable of producing movement is called a tetanic contraction.

A tetanic contraction refers to a sustained and continuous muscle contraction without relaxation. It occurs when a muscle is stimulated repeatedly at a high frequency, preventing the muscle fibers from fully relaxing between stimuli. As a result, the muscle fibers remain contracted and generate a continuous force.

Tetanic contractions are achieved when the frequency of muscle stimulation is high enough to reach a threshold where the individual twitches of muscle contractions fuse together. This fusion of twitches creates a smooth and sustained contraction.

Tetanic contractions are essential for various activities that require continuous muscle force, such as maintaining posture, gripping objects tightly, or performing activities that demand prolonged muscle engagement.

It's important to note that sustained tetanic contractions cannot be maintained indefinitely, as muscle fatigue can eventually occur due to the depletion of energy stores and the buildup of metabolic waste products.

To learn more about muscle contraction, here

https://brainly.com/question/33378824

#SPJ4

Answer:

The macronutrient that is chemically bonded into molecules by producers is carbon, and the process is called photosynthesis.

that person is correct thx

a) When a carrot is submerged in a diluted solution, water will osmosis into the carrot cells. As a result, the cells will become turgid and the carrot's mass will rise.

b) The carrot's inability to alter in mass when submerged in a 0.4 mol/dm3 solution shows that the solute concentration—which includes salts and sugars—within the carrot cells is also 0.4 mol/dm3. There is no net movement of water into or out of the cells at this concentration.

c) This indicates that the carrot and the 0.4 mol/dm3 solution have come to an equilibrium. At this concentration, the passage of water into and out of the cells is balanced, and there is no net gain or loss of water.

d) If the carrot is submerged in a concentrated solution, water will osmotically escape from the cells, plasmolyzing them. The mass of the carrot will shrink as a result.

learn more about osmosis here

https://brainly.com/question/2625460

#SPJ1

Answer:

Stains are used to help identify different types of cells using light microscopes. They give the image more contrast and allow cells to be classified according to their shape (morphology). By using a variety of different stains, you can selectively stain different areas such as a cell wall, nucleus, or the entire cell.

Answer:

there's no pic ture or anything?

Explanation:

I can't answer with out a problem ..

Succinate is released into circulation by muscles during the process of anaerobic respiration.

During anaerobic respiration, the breakdown of glucose or glycogen occurs through a series of enzymatic reactions, ultimately leading to the production of ATP (adenosine triphosphate), the energy currency of cells.

One of the byproducts of anaerobic respiration in muscles is lactic acid, which can accumulate and contribute to muscle fatigue and soreness.

Succinate, on the other hand, is a metabolite that plays a role in the tricarboxylic acid (TCA) cycle, also known as the Krebs cycle or citric acid cycle.

The TCA cycle is an aerobic process that takes place in the mitochondria of cells and is involved in the further breakdown of glucose and the production of energy in the form of ATP.

While succinate is an intermediate in the TCA cycle and is produced within the mitochondria of cells, it is not typically released into circulation as a byproduct of anaerobic respiration in muscles.

Instead, it remains within the mitochondria and participates in subsequent reactions of the TCA cycle to generate more ATP.

In summary, succinate is not released into circulation by muscles during anaerobic respiration. Its role is primarily associated with the aerobic metabolic processes occurring in the mitochondria, specifically in the tricarboxylic acid cycle.

To learn more about mitochondria, refer below:

https://brainly.com/question/10688306

#SPJ11

Answer:

e. All of the above are correct.

Explanation:

Active transport is a type of transport in living systems in which molecules/ions/substances are moved or transported against their concentration gradient i.e. from a region where the substance is LOW to a region which it is HIGH, across a membrane. Since molecules are transported across a memembrane against their concentration gradient, an energy input in form of ATP is needed to do so.

Active transport is used in living systems to transport out secretory products and waste material against concentration gradients, take up nutrients from the environment against concentrations gradients etc. Since ions are substance moved by active transport from a low region to high region, there is an imbalance in the intracellular concentration of ions, such as Na, K etc.

Since there is no equilibrium in the concentration of ions on opposite sides of the membrane, an electric potential is formed across the membrane i.e. one part of the membrane will be more positively charged than the other.

Answer:

With codominance, a cross between organisms with two different phenotypes produces offspring with a third phenotype in which both of the parental traits appear together. This statement is true.

Answer:

Co-dominant trait

Explanation:

For the Usa test prep

Answer:

c) How organisms interacted

Explanation:

From seeing how they interacted we can tell how they lived and possibly where they lived.

Answer:What is an antigen?

a toxin or other foreign substance which induces an immune response in the body, especially the production of antibodies.

Why is it important to match blood types when giving a blood transfusion?

The accurate grouping of blood is very important when it comes to having a blood transfusion. If blood is given to a patient that has a blood type that is incompatible with the blood type of the blood that the patient receives, it can cause intravenous clumping in the patient's blood which can be fatal.

Why are people with type O blood called "universal donors"?

Type O-negative blood does not have any antigens. It is called the "universal donor" type because it is compatible with any blood type. ... Minor antigens (other than A, B, and Rh) that occur on red blood cells can sometimes also cause problems. So they are also checked for a match before giving a blood transfusion.

Who are universal recipients? Why?

Type AB-positive blood is called the "universal recipient" type because a person who has it can receive blood of any type. Although "universal donor" and "universal recipient" types may be used to classify blood in an emergency, blood type tests are always done to prevent transfusion reactions.

Explanation:

hope it the right answer and it help you

The thin mucosa fold in the midline that attaches the internal surfaces of the superior and inferior lips to the gingivae is called the labial frenulum.

This is a small fold of tissue that helps to stabilize the lips and keep them in place during speech and other activities. The labial frenulum is an important part of the oral cavity and helps to ensure that the lips are properly positioned and functional. It also plays a role in maintaining the integrity of the oral cavity by preventing food particles and other debris from getting trapped between the teeth and the lips.

The labial frenum is a fibroelastic band that starts in the lip and inserts into the connected gingiva near the midline of the maxilla. Infancy may be characterised by a typical finding of a large maxillary labial frenum that inserts on the incisive papilla and crest of the alveolar ridge. As the alveolus grows vertically as it should, the attachment on the ridge moves apically.

To know more about labial frenulum click here:

https://brainly.com/question/29612861

#SPJ11