Respuesta:
La respuesta correcta es la C, ya que II, III y IV son correctas.
Explicación:
Nuestro sistema inmunológico nos defiende de agentes patógenos que pueden enfermarnos, y está compuesto por dos tipos distintos de inmunidades: la inmunidad innata y la inmunidad adaptativa.
La inmunidad innata es aquella que reacciona primero cuando se presenta una amenaza, atacando a los patógenos de manera inespecífica gracias a mecanismos que ya existían antes de que se desarrolle la infección. Cuando se trata de inmunidad innata, nuestras principales barreras de defensa son la piel y las mucosas, y las células de la respuesta inmune de mayor relevancia son los neutrófilos, entre otras.
Por el contrario, la inmunidad adaptativa, es de respuesta tardía y puede actuar de maneras diferentes dependiendo de cuál sea el patógeno invasor. Hay dos tipos de inmunidad adaptativa, la humoral y la celular. De la inmunidad humoral participan principalmente los linfocitos B, que fabrican anticuerpos específicos; mientras que la inmunidad celular es llevada a cabo por linfocitos T. La ventaja que tiene la inmunidad adaptativa en comparación con la innata es que es específica, diversa, más eficaz, y POSEE MEMORIA.
Las células de la inmunidad adaptativa presentan la capacidad de "recordar" cómo el cuerpo actuó ante una amenaza en el pasado para poder llevar a cabo un plan mucho más eficaz. Esta es la razón por la que las vacunas funcionan: porque se le inyecta a los individuos una versión débil del patógeno (por ejemplo, del virus que causa la varicela) para que el cuerpo "aprenda" a vencerlo para cuando se encuentre con ese microorganismo en un futuro.
True or False. Signals pass through transducers in your television.
1. True
2. False
Answer:
false
Explanation:
they pass through the wifi the the spectrum ot AT&T box, of if you have a dish in the roof
Answer:
True
Explanation:
Why do humans want/need to know the populations of different species in the world?
Answer:does this question have answer choices?
Explanation:
Which of the following best describes an atom?
Protons, neutrons, and electrons all grouped together in the center.
O
A core of negatively and positively charged particles surrounded by neutral particles...
A.core of positive and neutral particles surrounded by negative particles.
A core of electrons and neutrons surrounded by protons
Explanation:
A.core of positive and neutral particles surrounded by negative particles.
Answer:1st one
Explanation:
Its protons,neutrons,and electrons all grouped togrther in the center. O
What is an hypothesis?
1.
an explanation why or how an event happens
2.
an experiment to prove a theory
3.
a fact supported by experimental data
4.
a demgn for an experiment
Answer:
it should be 1. an explanation why or how an event happens
Explanation:
When you form a hypothesis, you are forming what you think will happen if you do this. then an experiment is usually followed shortly afterwards.
What is anaerobic respiration?
Answer:Anaerobic respiration is respiration using electron acceptors other than molecular oxygen. Although oxygen is not the final electron acceptor, the process still uses a respiratory electron transport chain.
Explanation:hope this helps
which choice has prokaryotic cells? human blood, E. Coli, Cows liver , or onion root.
Identify the product of genetic engineering.
A.
inserting a spider’s silk gene in a goat’s DNA to weave silk threads
B.
choosing livestock for mating to pass on their genes for being large to offspring
C.
intentionally pollinating two strawberry plants that produced sweet berries
D.
fishing for large fish, leaving small fish to pass on their genes to offspring
Thank you!!! :)
Answer:
A. Inserting a spider's silk gene in a goat's DNA to weave silk threads.
Explanation:
Which choice names part of the lithosphere?
A. outer core
B. crust and outer part of the mantle
C. all of the mantle
D. inner core
The correct answer would be B, because the crust is made of rock, and the outer part of the mantle is connected to the crust, therefore having some rocks there also.
The lithosphere is defined as the outermost rocky layer of the Earth. The lithosphere can be explained by the example of the Rocky Mountain Ranges in North America.
The correct answer is:
Option B. crust and outer part of the mantle
The lithosphere is composed of the brittle and outer rocky portion of the mantle and the crust.
The is bounded by the atmosphere above and the asthenosphere. The rocks of the lithosphere are considered elastic. The outer part of the mantle or lithosphere is very important because the biosphere inhabit and lives upon it.
Therefore, option B is correct.
To know more about the lithosphere, refer to the following link:
https://brainly.com/question/3101133
DNA replication takes place in the (centrosome / nucleus) of a eukaryotic cell. please help :) ✨
Explanation:
DNA replication is the process by which DNA is (copied / observed) during the cell cycle. DNA replication takes place in the (centrosome / nucleus) of a eukaryotic cell. DNA is replicated during the (M stage / S stage) of the cell cycle. ... They help unzip the DNA strand.
Mark me as brainlist..
Answer:
DNA replication takes place in the centrosome/nucleus of a eukaryotic cell. DNA is replicated during the M stage/S stage of the cell cycle. DNA replication needs to occur so that every cell/organism will have a complete set of DNA following cell division.
Imagine that most of the trees are cut down and removed from the nearby
forest. What would be the most likely effect on the beaver population?
A. It would stay the same.
B. It would increase.
C. It would increase and then decrease.
D. It would decrease.
Answer:
Decrease.
Explanation:
Beavers need trees to make Dams, without Dams they'd be in danger because of other predators.
D. It would decrease
It would decreases because the beavers need the trees to build a habitat. Hope this helps, brainliest if you can thank you!
A feral cat needs to eat two mice a day to survive. A mouse needs to eat 5 seeds a day to survive. How many seeds are required to feed a feral cat for a week (7 days)?
Answer:
70 seeds
Explanation
5 is the food for a mouse (day)x2 mice for cat=10. 10x7(week)=70 seeds
hope this helps!
Which component of the digestive tract includes the enzymes that begin digestion of carbohydrates.
A( bile
B( Chyme
C( saliva
D( urea
Answer:
[tex]\boxed {\tt Saliva}[/tex]
Explanation:
The digestive tract and process of digestion actually begin with the mouth. Teeth help break the food up into smaller pieces that are simpler to absorb and digest. Saliva helps moisten the food so it is easier to swallow, but it also contains an enzyme called amylase. This enzyme helps break down carbohydrates into simple sugars and begins the digestion of carbohydrates.
Therefore, the best answer choice is C. saliva.
each of my nucleotides includes a phosphate sugar and base am i dna or rna
Nucleotides are defined as the building blocks of DNA and RNA. These are the genetic material found in every living cell. The nucleotides are made up of sugar, a phosphate group, and nitrogenous bases.
The molecules like DNA and RNA have some of the building blocks same. The pentose sugar and nitrogenous bases. The molecule when composed of sugar molecules and nitrogenous bases are termed as a nucleoside.
The addition of the phosphate group to a nucleoside forms the nucleotide.
RNA is composed of nitrogenous bases (adenine, cytosine, uracil, and guanaine), pentose sugar (ribose), and a phosphate group.
DNA is composed of nitrogenous bases (adenine, cytosine, thymine, and guanaine), pentose sugar (deoxyribose), and a phosphate group.
Thus, DNA and RNA are nucleosides consisting of nitrogenous bases (purines and pyrimidines) and sugar groups.
Therefore, the correct answer is the molecule can be DNA or RNA.
To know more about DNA and RNA, refer to the following link:
https://brainly.com/question/16308848
What happens to the pressure in your chest cavity when you inhale?
A.bronchi
B.alveoli
C.bronchioles
D.trachea
Question 45 (1 point)
(DOK 2) The role of the pancreas in the human body is to make insulin to prevent
individuals from developing diabetes. Sue goes to visit the doctor and the doctor
reports that her pancreas is indeed producing proteins necessary to create insulin
but the proteins are not being delivered to the correct location in the cell, to trigger
the release of the insulin. Which organelle is responsible{for this lack of homeostasis?
vacuole
golgi bodies
nucleus
Endoplasmic reticulum
The organelle here that is responsible for delivering the protein to correct location is Golgi bodies. The correct option is B.
What are Golgi bodies?The Golgi apparatus is an organelle located in almost all eukaryotic cells. It is also referred to as the Golgi complex, Golgi body, or the Golgi.
It is a mandatory part of the cytoplasmic endomembrane system which aids in packaging of proteins into membrane-bound vesicles as they are transported to their destination.
The packaging and transportation of materials would cease if the Golgi apparatus was not present.
Various substances, such as sugar monomers, would be unable to be converted into usable forms. The cell's secretory activities would also cease to exist.
In the given scenario, as Sue's pancreas is indeed producing proteins necessary to create insulin but the proteins are not being delivered to the correct location in the cell, to trigger the release of the insulin.
This shows that she is not able to transport the insulin due to some problems with the Golgi apparatus.
Thus, the correct option is B.
For more details regarding Golgi bodies, visit:
https://brainly.com/question/13274076
#SPJ2
prokaroytic and eukarayotic cells
Answer:
A prokaryote is a cellular organism that lacks an envelope-enclosed nucleus. The word prokaryote comes from the Greek πρό and κάρυον. In the two-empire system arising from the work of Édouard Chatton, prokaryotes were classified within the empire Prokaryota.Eukaryotic cells are cells that contain a nucleus and organelles, and are enclosed by a plasma membrane. Organisms that have eukaryotic cells include protozoa, fungi, plants and animals. These organisms are grouped into the biological domain Eukaryota.
Explanation:
Is the following equation balanced or unbalanced?
AlBr₃ + 3K → 3KBr + Al
Answer:
Yes it is.
Explanation:
There are 3 Potassium, 1 Aluminum, and 3 Bromide atoms on the reactants and products of this single displacement equation.
The table compares prokaryotes, plant cells, and animal cells
Complete the table.
Present
Absent
Structure
Prokaryotes
Plant cell
Animal cell
Nucleus
Present
Cell Wall
Absent
Mitochondria
Absent
Chloroplasts
Absent
Answer:
Structure Cell 1 Cell 2
DNA Located in cytoplasm Located in nucleus
Cell membrane Present Present
Cell wall Present Absent
Mitochondria Absent Present
Ribosomes Present Present
Explanation:
Answer:
Nucleus : Absent Present Present
Cell Wall: Present Present Absent
Mitochondria: Absent Present Present
Chloroplasts: Absent Present Absent
Hope This Helps
- Greg
Acids have a pH value of
Group of answer choices
greater than 7
less than 7
1 to 14
7
Which of the following presents the best argument as to the role of the cow in this cycle?
Answer:
Cow dung helps in balancing the environment and kills germs
Explanation:
Cow dung is used for fertility of the soil. It is also used for the control of pest in the plants. When heated cow dung can be used to cook food where there are lack of wood available. Also when it is heated it releases the gases which kills germs present in the air.
Answer:
The cow eats plants and produces carbon dioxide through cellular respiration. The plants, which gain energy from the sun, then take carbon dioxide from the atmosphere and use it in photosynthesis.
Explanation:
I did the test
Where in the world would you find a continental climate?
Answer:
It is found between 30° and 60° N in central and eastern North America and Asia in the major zone of conflict between polar and tropical air masses.
Explanation:i hope im right
Help Pls , Will Mark as brainliest
please help asap⚠️⚠️ i will mark brainliest
Answer: here’s a pic. hope this helps ya :)
Explanation:
3. Draw a circle on a flat surface. Look at it from the side. What do
you think you'll see?
circle
egg shape
ellipse
bean shape
4. Which of the following
would you be able to use to make a specific ellipse?
lengths of major and minor axes
positions of the two foci
positions of the two foci and the center
the circumference and center
What would be the complementary strand to ATC GTT ACG?
What happens when an egg is fried? A. The egg changes from a liquid to a solid as it reaches its freezing point. B. Air combines with the egg, forming a mixture. C. Heat causes the substances in the egg to change into new substances. D. The egg dissolves in the oil, forming a thick solution.
Answer:
C. heat cause the substances in the egg to change into a new substance.
Explanation:
the longer you heat the protein and the higher the temperature, the tighter the protein will bond to each other.
Answer:
C.Heat causes the substances in the egg to change into a new substances
Explanation:
This is a Chemicals change , chemicals change , chemicals changes occur when a substance combined with another to form a new substance , called chemicals synthesis or , alternatively , chemicals decomposition into two or more different substances these processes are called chemicals reactions and . in general . are not reversible except by further chemical reactions
What molecule does the carbon from carbon dioxide get stored as in photosynthesis?
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.
8. Write down the definition for the term "cross section” ?
Where is carbon stored in the environment?
Answer:
Carbon is also found in the atmosphere where it's a part of carbon dioxide gas emitted when fossil fuels are burned and when living organisms breathe. It's in organic matter in the soil, and it's in rocks. But far and away the most carbon on Earth is stored in a surprising place: the ocean.
Explanation:
Answer: On Earth, most carbon is stored in rocks and sediments, while the rest is located in the ocean, atmosphere, and in living organisms. These are the reservoirs, or sinks, through which carbon cycle.
What two things must exist for an electric current to be produced?
Answer:
A supply of electric charges (electrons) which are free to flow, some form of push to move the charges through the circuit and a pathway to carry the charges.
Explanation:
Answer:
An electric potential between two bodies and a conducting path joining the bodies.
Explanation:
For an electric current to be produced, there must be an electric potential between two bodies and a conducting path joining the bodies. Two oppositely charged bodies won't produce a current unless there's a conduction path for the electrons to travel through.
PF
