Answers
2)nucleus
3)vacuole
4)chloroplast
5) cell wall
Related Questions
Un niño que ha enfermado de paperas o varicela, no desarrollará estas
enfermedades en una segunda oportunidad, porque:
I. la piel, mucosas y lágrimas impiden el ingreso de los microbios.
II. en el primer contacto adquirió anticuerpos.
III. interviene la inmunidad Adaptativa, la cual presenta "memoria".
IV. su sistema defensivo está preparado frente a una segunda exposición
a. I y II son correctas
b. III y IV son correctas
c. II, III y IV son correctas
d. I, II y III son correctas.
Answers
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.
HELP PLEASE!!!!!!!!
Extend your thinking: Many chemical properties are determined by the number of valence
electrons. Elements with the same number of valence electrons will have similar properties.
Which element has similar properties to lithium? _________ Beryllium? _________
Explain: __________________________________________________________________
Answers
Answer:
Same number of atoms on the outer shell, will have similar melting and boiling properties
Explanation:
just filled this out for chem
What is produced when an atom loses an electron?
Answers
Answer:
It becomes a positively charged ion.
Explanation:
Answer:
it will lose negative charge and become positively charged
Science help PLZZZ!!!
Answers
Answer: b
Explanation:
Answer: B.
Explanation: Light cannot pass through an opaque object.
How does the DNA found in your eye cells compared to the DNA found in your skin cells?
Answers
Answer:
Only 50% of the DNA in an eye cell can be found in a skin cell.
What does the term frameshift mean in science
Answers
Answer:
A frameshift mutation is a type of mutation involving the insertion or deletion of a nucleotide in which the number of deleted base pairs is not divisible by three.
Explanation:
Answer:
A frameshift mutation is a genetic mutation caused by a deletion or insertion in a DNA sequence that shifts the way the sequence is read. A DNA sequence is a chain of many smaller molecules called nucleotides.
HOPE IT WILL HELP U!
Which statement about water best illustrates the property of adhesion?
Answers
Answer:
The correct answer is- water droplet found on a spider web in the morning
Explanation:
Hope this helps u
Crown me as brainliest
guys can u please ASAP
1. Which of the following is provided directly by the sun to plants for photosynthesis?
A. Energy
B. Carbon dioxide
C. Oxygen
Answers
Answer:
energy is provided by the sun
Two differences between hormones and the nervous system
Answers
Answer:
Hormones can be proteins, lipids or cholesterol-based molecules. Neurotransmitters are protein. The main difference between hormones and neurotransmitters is that Hormones are produced in the endocrine glands and released into the bloodstream where they find their movement targets at a distance from their origin. In contrast, Neurotransmitters are released into the synaptic space by a terminal of an excited presynaptic nerve cell and transmit a nerve signal to the neighboring postsynaptic nerve cell.
Explanation:
Answer:
the nervous system and endocrine system (hormones) is that the nervous system uses electrical impulses to send messages through neurons while endocrine glands use hormones to send messages to the target cells through the bloodstream.
Which of the following is not a characteristic of enzymes?
F
they are proteins
G
they act as a catalyst
H
they react with a specific substrate
they are unaffected by changes in temperature
J
they are unaffected by changes in temperature
Answers
Answer:
they are unaffected by changes in temperature. t
Explanation:
that's the answer J. u kinda wrote it in two places.
Plants have specialized structures that perform their necessary life functions. The gases that are crucial to proper
function within a plant are oxygen and carbon dioxide. What structure would control the exchange of these gases in
a plant?
a. mesophyll
b.trichomes
c.root hairs
d.stomata
Answers
Answer:
Stomata
Explanation:
Normally stomata open when the light strikes the leaf in the morning and close during the night.
d. During photosynthesis, CO2 enters the plant leave through opened stomata and in return it releases glucose,oxygen and some little molecules of water
Which organelle would you expect to find in animal cells but not plant cells?
O A. mitochondrion
OB. ribosome
C. lysosome
O D. A. smooth endoplasmic reticulum
Answers
Answer:
Lysosome
Explanation:
A cell without a nucleus is known as
Help thank you
Answers
Answer: prokaryotic cells
Explanation:
Answer: Prokaryotes are organisms whose cells lack a nucleus and other organelles.
Explanation:
Given that almost all organisms obtain energy from food by the process of cellular respiration, which is the most likely explanation for what prevents Earth from running out of oxygen?
Answers
Answer:
Oxygen cycles keeps the flow of oxygen at a constant rate.
Explanation:
The oxygen constitutes about 20% of the gaseous components in the atmosphere and it's being renewed continuously by the various microorganism and primary producers as green plants that use photosynthesis and converts the sunlight and carbon dioxide to water and releases oxygen. Oxygen cycle makes life possible as most of the elements are combined with oxygen in some way or another and are found on the lithosphere, hydrosphere, and atmosphere even biosphere hence its is present insufficient amounts.
Answer:
A.) The net effects of the reactions of photosynthesis and cellular respiration are the opposite of one another, therefore the products of one are the reactants of the other, creating a cycle.
Explanation: Hope this helps!!
A student wondered it butterflies would show any differences in their wing color it, as caterpillars, they were grown in the dark or grown in bright white light
Which statement would be a possible hypothesis for an experiment to test this idea?
Answers
Answer:
probably bc most caterpillars are mostly green and then they turn in to like brown or other colors
Explanation:
Choose all that apply. Carbohydrates contain the following elements:
Answers
Answer: carbon, hydrogen, and oxygen
Explanation:
hydrated carbon which results to sugar and oxygen
Explanation:
plz give me brainiest
What are cat and dog paws adapted for?
Answers
Answer:
Explanation:
The cat and dog paws are adapted for walking, running, climbing and digging. Both the animals can use their front paws and back paws for different needs or just as the situation ahead of the demands.
Which of the following represents the phases of mitosis in their proper sequence?
Answers
Answer:
Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. Some textbooks list five, breaking prophase into an early phase (called prophase) and a late phase (called prometaphase).
which member of the solar system has a diameter of 3.48 x 103 kilometers
Answers
Answer:
j
Explanation:
How many different ELEMENTS are in Na2SO4?
A.)1
B.)3
C.)6
D.)7
Answers
Answer:
D, 7
Explanation:
In one molecule of sodium sulfate, or Na2 SO4, there are seven atoms in all. The chemical formula for this molecule tells us this.
A difference between food chains and food webs is that food webs are...
O bigger
Smaller
Answers
Answer: Food webs are bigger, food chain is smaller.
Explanation:
Food webs are multiple food chains into one web.
Which of the following presents the best argument as to the role of the cow in this cycle?
Answers
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
Which of the following is an example of how an organism depends on Earth's natural resources for survival?
A.
Humans grow corn and wheat as food sources.
B.
Beavers use tree branches to build dams and shelters.
C.
Plants take in nutrients and groundwater from the soil.
D.
all of these
Answers
Explanation: They’re all using earth’s resources.
Selena learns that, as specialized cells mature, certain organelles increase in
quantity while other organelles may disappear. She also learns that muscle cells
require large quantities of energy in the form of ATP. Based on this, she can predict
that muscle cells would contain an unusually high number of
A Lysosomes
B Ribosomes
C Rough endoplasmic reticulum
D Mitochondria
Answers
Explanation:
rewatch the video your teacher provided on edunity
Answer:
mitochondria
Explanation:
muscles need energy for contraction and lots of mitochondria is what helps them do this
Which table shows the most likely process and agent of erosion responsible for this rounded
sediment?
Answers
Answer:
B
Explanation:
They settle mostly in ocean an seas
Which of the following abiotic factors can influence the number of plants that can grow in an ecosystem?
Answers
Answer: The most important abiotic factors for plants are light, carbon dioxide, water, temperature, nutrients, and salinity.
A relationship between living things that depend on the same
resources at the same place and at the same time is called
Answers
Answer:
competition
Explanation:
i searched it up
Answer:
Competition
Explanation:
Competition is a relationship between living things that depend on the same resources. The resources may be food, water, or anything else they both need. Competition occurs whenever the two species try to get the same resources in the same place and at the same time.
HELP PLEASE! fill in the blanks
Answers
Answer:
infectious agents/germs, immune system, circulatory system
Explanation:
Plz hurry if u can. What is the momentum of a 100-kg football
player running north at a speed of 4 m/s?
Answers
When carbohydrate consumption exceeds the body's immediate needs for energy, glycogenesis ____________ .
Glycogen storage space in the liver and muscles is limited. When glycogen stores are full, use of glucose for energy ____________ and oxidation of fat for energy ____________ .
Overall, when carbohydrate intake is excessive, lipogenesis ____________
Increase or decrease
Answers
Answer:
When carbohydrate consumption exceeds the body's immediate needs for energy, glycogenesis decreases.
The process of conversation of stored glycogen in the liver and muscles to glucose is Glycogenesis. It takes place when the blood glucose drops,below certain levels and the body cells need glucose for biochemical activities.Therefore, when there are excess CHO consumption,more glucose would be in the blood,and thus no need for glycogenesis.(breakdown of glycogen)
Glycogen storage space in the liver and muscles is limited. When glycogen stores are full, use of glucose for energy __Increases__________ and oxidation of fat for energy ___decreases_________ .
Definitely, this is a simple logic.As the storage for glycogen is limited,excess glucose move into the blood, since they can not be converted to glycogen.The glucose is expended through cellular reduce the amount in the blood. Therefore, Gluconeogenesis, the production of glucose from non-CHO substances drops. Hence beta- oxidation drops.
Overall, when carbohydrate intake is excessive, lipogenesis increases.The process of converting excess CHO to fatty acids.Biochemically it is the process of converting the Carbon precursor of acetyl co -A to fatty acids.Therefore this increases to synthesized more fatty acids from CHO
Explanation: