The first line of defense involves which structure(s)?
O T-cells
O skin
O blood
O B-cells

Answers

Answer 1

Answer:

Skin

Explanation:


Related Questions

If the inner membrane of mitochondria was not folded, how would it affect the organism?
A. It would have less energy due to a smaller area for cellular respiration to take place.
B. There would be no effect.
C. Cellular respiration would slow, but the rate of ATP production would increase.
D. It would have more energy due to a larger area for cellular respiration to take place.

Answers

Answer:

A.

If the inner membrane of the mitochondria was not folded then there wouldn't be enough surface area for the electron transport chain.

Explanation:

Hope this helps!!!!!!

Forever friend and helper,

Cammie:)

If the inner membrane of mitochondria is not folded, then it would have less energy due to a smaller area for cellular respiration to take place. The correct option is A.

What is mitochondria?

Mitochondria are membrane-bound cell organelles that garner the majority of the chemical energy required to drive the biochemical reactions of the cell.

The mitochondrial energy is kept in a small molecule known as adenosine triphosphate i.e., ATP.

Several hundred to thousands of mitochondria are found in the fluid that covers the nucleus in each cell i.e., cytoplasm.

The mitochondria, also renowned as the powerhouses of the cell, produce the energy required for the cell's continued existence and function.

Mitochondria use a series of chemical reactions to convert glucose into an energy molecule known as adenosine triphosphate which is used to power various cellular processes.

If the inner membrane of the mitochondria is not folded, it will have less energy because there will be a smaller area for cellular respiration to occur.

Thus, the correct option is A.

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two ways in which carbon dioxide enters the atmosphere?

Answers

Atmospheric carbon dioxide comes from two primary sources—natural and human activities. Natural sources of carbon dioxide include most animals, which exhale carbon dioxide as a waste product. Human activities that lead to carbon dioxide emissions come primarily from energy production, including burning coal, oil, or natural gas.

It is best to say that marine debris ____
A. is a hazard to marine animals
B. a pervasive, global pollution problem
C. all of the above
D. degrading ocean health

Answers

Answer:

C. All of the above

Explanation:

It is best to say that marine debris causes all of the above.

What is Marine Debris?

Marine debris is any litter whether accidental or intentional  that ends up in the water body be it oceans, seas, lakes, pond, etc .

The sources of Marine debris include:

Sewage overflowwater runoffDeliberate litteringPoor waste disposal and managementindustrial activities illegal dumping.

When these debris accumulate , over time they cause health hazard to the water bodies by

Degrading the health of the oceanposing hazard to marine animals causing global pollution effects

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Give one example of two other body systems that work together and explain how they support eachother

Answers

Answer:

The Muscular and Skeletal systems work together to help the body move and keep a shape.

Answer:

The Circulatory System and the Nervous system

Explanation:

I realize this question has already been answered, but if anyone wants more than one, I'm here to help!

The nervous system keeps the heart beating, as well as regulating other things, like letting the body know when the circulatory system is damaged. In return, the brain is kept alive with a lot of blood being pumped up there by the heart, despite gravity pushing it down.

Hope this helps!

Which of the following is example of a scientific model?

Answers

Answer

solar system, a globe of earth

Answer:

A model of the motions of the sun, moon and earth (which you participated in last year) A model of predicting eclipses. Models that explain weather phenomena can be used to predict weather.

Explanation:

These are examples of a scientific model.

Which of these is NOT a possible of effect of dropping air pressure? (picture below)

Answers

Birds flying in the sky

Answer: Birds fly higher in the sky at higher speeds

Explanation:

Drag each label to the correct location on the diagram. Each label can be used more than once, but not all labels will be used. The diagram shows some of the steps in the flow of energy through an ecosystem. The arrows represent the transfer of energy. Label each arrow with the type of energy being transferred.

Answers

See attached image for the diagram of being referred to

Answer/Explanation:

In the diagram showing a typical food chain in an ecosystem, the arrow that connects the sun to plants represents the flow of radiant energy. The sunlight produces radiant energy, of which producers, such as plants, converts into chemical energy through photosynthesis.

The next arrow linking the plants to the rodent shows the flow of chemical energy in plants to primary consumers, such as rodents, who feed on them.

Also, rodents, when preyed upon by secondary consumers, such as wolfs and owls, pass on the same chemical energy to them. So the arrows connecting the rodent to owl, and to the wolf both show the transfer of chemical energy from the rodent to the owl and wolf.

The next arrow shows the transfer of thermal energy from the wolf to the environment, as the wolf release heat from the body resulting from daily functions it performs, and also, thermal energy is released to the surroundings as heat during the decomposition of the body of an animal.

The arrow linking the wolf to the decomposer which break down the body and waste of the wolf represents transfer of chemical energy to the decomposer, as they break chemical bonds to obtain the energy they need to survive and grow.

Answer:

this is correct on plato

Explanation:

A component of a circuit changes, as shown below. At left a short horizontal line then a small circle with a line pointing up at about 45 degrees then a short gap then a small circle then a short horizontal line. In the middle an arrow pointing right. At right a short horizontal line then a small circle then a shorter horizontal line then a small circle then a short horizontal line. How would this change affect the electric circuit? A switch is closed, so the circuit would be incomplete and broken and the lights in the circuit would not shine. A switch is closed, so the circuit would be complete and unbroken and the lights in the circuit would shine. A switch is opened, so the circuit would be incomplete and broken and the lights in the circuit would not shine. A switch is opened, so the circuit would be complete and unbroken and the lights in the circuit would shine.

Answers

Answer:

B A switch is closed, so the circuit would be complete and unbroken and the lights in the circuit would shine.

Explanation:

A switch is closed, which causes the electric circuit to become complete and uninterrupted and the lights in the circuit to shine, hence option B is correct.

What is an electric circuit?

When an electric charge builds up inside of an item, it disperses across its surface and stays there until it can be discharged by an electrical current or electrical discharge this is known as "static electricity."

A short horizontal line, a tiny circle with a line going up at around 45 degrees, a short gap, a small circle, and a short horizontal line are displayed on the left.

An incomplete circuit is represented by an open switch, and a complete circuit is by a closed switch.

Therefore, the switch is now closed, thus the lights would turn on and the circuit would be complete, hence option B is correct.

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The data shows that recently the shark population increased. How will the increase in the shark population affect the other populations? Be sure to explain whether the sea otter population, the sea star population, and the clam population will change, and why.

Answers

Answer:

If there is an increase in the shark population, then there will be a slight decrease in the other populations.

Explanation:

Based upon the three animals listed, the shark is at the top of the food chain. This means that the shark will eat the sea otter and see star, declaring their population will decrease.

Final answer:

An increase in shark population can have a ripple effect on other marine populations due to the interconnectivity of their food chain. For instance, sea otter population might decrease due to increased predation, leading to an increase in the sea star population and a potential decrease in clam population. However, environmental factors such as greenhouse gas emissions and ocean temperatures can also trigger shifts in marine populations.

Explanation:

An increase in the shark population can significantly affect other marine populations. For instance, if sharks, who are predators at the top of the food chain, increase in number, they may increase predation on sea otters, a favorite food source, potentially decreasing the sea otter population. This, in turn, could increase the sea star population as sea otters often consume sea stars.

The trend might also increase populations of some other species like clams. If sea stars, which are predators of clams, increase due to a reduction in sea otters, then the clam population might decrease. However, if the increased shark population also reduces the number of seal (a clam predator), then the clam population might, in fact, increase.

Environmental factors such as increases in greenhouse gas emissions and fluctuations in ocean temperatures can also trigger shifts in marine populations. It's important to note that the interconnectedness of these marine populations means a change in one can have a ripple effect on the others.

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In the food chain, we would classify plants as ___ and the animals as ___.

A.producers;consumers

B. producers;predators

C. consumers;predators

D. consumers;decomposers

Tysm!

Answers

Answer:

A. producers;consumers

A producer can either be a plant or bacterium, the first part of the food chain after the sun.

A consumer is an organism that eats plants or other animals for energy. The four types of consumers are herbivores, carnivores, omnivores, and detritivores (decomposers)

Hope this helped :) !

A population of light-colored mice was moved from the Sand Hills to a wooded area with dark soils.What do think would happen to this population after 10,000 years or longer?

Answers

Answer:

Explanation:

In this type of situation Survival of the Fittest and Evolution would take place. The population will begin to shrink drastically as they are easy prey in this new environment. Those that manage to survive will begin to adapt in order to better survive. As the years go by the population will begin to evolve into a species that will both survive and thrive in this wooded environment. Such as a species with a darker color for starters.

What is the purpose of a food chain?

Answers

Answer:

Food chains are a pictorial description of an ecosystem: what eats what. This helps scientists track the web of interdependence. If one important component in a chain is removed or affected, we can make predictions about how this might impact the entire ecosystem. We can track the effects of disruptions on a system.

Answer:

Food chains are a pictorial description of an ecosystem: what eats what. This helps scientists track the web of interdependence. If one important component in a chain is removed or affected, we can make predictions about how this might impact the entire ecosystem. We can track the effects of disruptions on a system.

Explanation:

What two things are used to classify stars on the HR diagram?
A. Temperature and luminosity/brightness
B. Color and shape
C. Shape and Size
D. Age and color

Answers

Answer:

A

Explanation:

In the HR diagram, temperature and luminosity (brightness) are used to classify stars. I hope this helps!

Final answer:

Stars on the H-R diagram are classified by temperature and luminosity, with the correct answer being A. Temperature and luminosity/brightness. This classification allows astronomers to differentiate between main sequence, giant, and supergiant stars.

Explanation:

The two things used to classify stars on the H-R diagram, also known as the Hertzsprung-Russell diagram, are temperature and luminosity (or brightness). The correct answer to the question is A. Temperature and luminosity/brightness. Stars are arranged on the H-R diagram with temperature increasing to the left and luminosity towards the top. This configuration creates a main sequence where most stars fall, representing the relationship that hotter stars are generally more luminous than cooler ones. In addition, astronomers use the diagram to distinguish different luminosity classes of stars, like main-sequence stars, giant stars, or supergiant stars, by studying details of their spectrum linked to temperature and pressure differences.

You observe small bubbles of air on the underside of an underwater leaf.
Where could these air bubbles be coming from?​

Answers

Answer:

This could possibly be caused by some sort of insect or some microscopic being on the leaf.

Explanation:

The air bubbles on the underside of an underwater leaf are likely produced by photosynthesis, where plants release oxygen as gas bubbles, and may also be associated with aquatic insects and spiders that create or carry air bubbles to breathe underwater.

Aquatic plants, like all plants, take in carbon dioxide and use sunlight to convert it into oxygen and glucose. The oxygen produced can be released as gas bubbles, which you see attached to the leaf. Similarly, some underwater creatures, such as aquatic insects or spiders, may carry or generate air bubbles for respiration. For example, diving bell spiders create air bubbles to help them breathe underwater by trapping a bubble that sticks to their hairy abdomens and taking it to their silk air tanks, also known as "diving bells". This adaptation allows them to stay submerged for extended periods.

Which structure is the arrow pointing to

Lysosome ,nucleus ,ribosome

What is the function

Breaks down waist,controls activities,
Produces protien

Answers

Answer:

Nucleus

Explanation:

It is the unit of heredity and it controls the activities of the cell

what are two specific examples of genetically modified organisms​

Answers

Current Use of Genetically Modified Organisms
Genetically Conferred Trait Example Organism
Herbicide tolerance Soybean
Insect resistance Corn
Altered fatty acid composition Canola
Virus resistance Plum
Hope it helped


What is the flexible connective tissue shown in blue?

tendon
bone
cartilage
muscle
right answer gets brainliest!

Answers

Answer:

Cartilage

Explanation:

Final answer:

The flexible connective tissue shown in blue is cartilage.

Explanation:

The flexible connective tissue in the shoulder joint is primarily cartilage. Cartilage is a tough and resilient tissue that covers the ends of bones where they meet in a joint, providing a smooth surface for low-friction movement. In the shoulder, it is found in the glenoid cavity of the scapula (shoulder blade) and the head of the humerus (upper arm bone).

This articular cartilage reduces friction and cushions the joint during various movements like arm rotation and lifting. While cartilage plays a crucial role in the shoulder joint's flexibility and function, it can be susceptible to wear and tear, leading to conditions like osteoarthritis.

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Which of the following statements about comets is true?
A.
Comets are mostly made up of rock. They are usually very hard to see, but as they approach the Sun the rock heats up and becomes much easier to see.
B.
Comets are mostly made up of rock. They are usually very easy to see but as they approach the Sun the rock condenses and becomes much harder to see.
C.
Comets are mostly made up of dust particles, frozen water and frozen gases. They are usually very easy to see but as they approach the Sun these particles condense and become much harder to see.
D.
Comets are mostly made up of dust particles, frozen water and frozen gases. They are usually very hard to see, but as they approach the Sun these particles heat up and become much easier to see.

Answers

Answer:

D

Explanation:

Comets are brightest near the sun.

Answer: D
Explanation: comets are brightest near the sun

Please I need the answer ASAP !!!!

Answers

Producers are primary consumers and it gets 10 %

Heterozygous is when

Answers

Answer:

Having two different alleles of a particular gene or genes.

Explanation:

Heterozygous means that an organism has two different alleles of a gene. For example, pea plants can have red flowers and either be homozygous dominant (red-red), or heterozygous (red-white). If they have white flowers, then they are homozygous recessive (white-white). Carriers are always heterozygous.

What types of variation are frequently exhibited in a population or species ?

Answers

Answer:

The variety of alleles in a population, resulting in a variety of phenotypes. Important to help survival of species in an changing environment.

Explanation:

Answer:

The variety of alleles in a population, resulting in a variety of phenotypes. Important to help survival of species in an changing environment.

Can a single off spring inherit both chromosomes from one parent? explain.

Answers

So I should be saying no, because in order for an offspring to be made it needs to be formed from 2 haploid gametes, each with one of each chromosome blah blag blah... However, if a nondisjunction were to occur in the gametes of both parents during meiosis, it is possible that, for example: sex chromosomes, one parent could give two chromosomes and the other could give none. It's rare, but it happens.

Explain the difference between sea anemones and jellyfish.

Answers

Answer:

Jellyfish move around more, stay in the middle of the water and are clear but some are brightly colored while sea anemones move less and slower, stay at the bottom of the water and have many colorful colors.

Plz help
Which of the following substances is most likely to be soluble in water?
A. a polar substance capable of forming hydrogen bonds
B. a molecule with hydrophilic heads and hydrophobic tails
C. a hydrophobic substance
D. a nonpolar substance

Answers

A polar substance which can participate in hydrogen bonding is most soluble in water.

What is a polar substance?Polar substances have molecules where there is a high difference in electronegativity between their constituent atomsFor example, Hydrochloric acid (HCl) is a polar substancePolar substances are "water-loving" which means they dissolve easily in water

To identify the most water-soluble molecule, we need to understand hydrogen bonding and solubility in water.

What is hydrogen bonding?This form of bonding occurs when there is an attractive electrostatic force between an electronegative group and a hydrogen atom bonded to an electronegative groupFor example, there is hydrogen bonding among water molecules.

What kind of a molecule is water?Water is a polar moleculeIt has electronegative oxygen and electropositive hydrogenBy the concept of "like dissolves like", water dissolves polar substances bestMolecules that form hydrogen bonds in water also dissolve very well

Thus, a polar substance that can form hydrogen bonds will be most soluble in water. Hydrophobic substances and non-polar substances cannot dissolve well in water.

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Do humans and oak trees belong in the same domain?

Answers

Answer:

Yes.

Explanation:

This is because there are 3 domains: Archaea, Bacteria, and Eukarya. The domain Eukarya includes plants, animals, fungi, and protista. This means that both humans and oak trees, an animal and a plant, both belong in the same domain, Eukarya.

A population of herbivores is at its carrying capacity for its habitat. Which factor is likely to result in a sudden rise in population that far exceeds the carrying capacity?
A.
birth of young
B.
emigration
C.
immigration
D.
introduction of a new limiting factor

Answers

Answer:

-immigration is likely to result in a sudden rise in population that far exceeds the carrying capacity.

Answer:

C. immigration

Explanation:

How does the presence of water on Earth support life?

Answers

Answer:

Easy

Explanation:

In this regard, water is essential simply because it's a liquid at Earth-like temperatures. Because it flows, water provides an efficient way to transfer substances from a cell to the cell's environment.

Which statement regarding hemodialysis is true?
A. The dialysate fluid flows into the abdominal cavity through a catheter.
B. The blood is circulated out of the body for cleansing and then returned.
C. The patient is able to move around during the procedure.
D. Wastes move from a region of lower concentration to a region of higher
concentration.

Answers

Answer: B. The blood is circulated out of the body for cleansing and then returned.

Explanation:

Hemodialysis is a medical therapy in which the patient's blood is taken out with the help of tubes and treated out of the body. The blood is pumped out using the blood compartment. The blood is circulated using a external filter, that is called as dialyzer. The blood get cleansed and impurities are removed and purified blood returned via circuit back to the body. This technique is used to control the blood pressure and balance of important minerals in the body that involves the potassium, sodium and calcium in the blood.

Based on the above information, option. B is the correct option.

What can help a scientist identify any object in a group of objects? a. the objects size b. the objects color c. the objects characteristics d. the objects shape HURRY TAKING A UNIT TEST (i only have 10 points so helppp)

Answers

Answer:

C

Explanation:

The others seem too specific when scientist look at everything when identifying a object. don't forgot to say thanks!!

Answer:

C. The Objects Characteristics

Question 9(Multiple Choice Worth 4 points)
(02.04 MC)

Which description justifies why the theory of evolution is a theory and not a law?

Explains how organisms change in response to the environment
Predicts which organism is best suited to the environment
Supported by a small amount of empirical evidence
With more evidence it will become a law

Answers

I believe it’s the first option

Answer:

A. Explains how organisms change in response to the environment.

Explanation:

A scientific theory is an EXPLANATION of an aspect in the natural world. In other words, it just tells why something happens. Now it is not just a guess, it is well-supported by evidence and previous studies.

Now to knock out your other choices:

B. is wrong because:

A scientific theory does not predict. It can serve as a basis for a prediction, or what you call a hypothesis, but it does not predict an outcome.

C. is wrong because:

As mentioned earlier, a theory is WELL-SUPPORTED by evidence and previous research.

D. is wrong because:

A theory does not become a scientific law.

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Which of the following is composed of amino acids?VitaminsMineralsCarbohydratesProteins Given the following reaction:\ce{2KClO3 -> 2KCl + 3O2}2KClOX 3 2KCl+3OX 2How many moles of \ce{KCl}KClK, C, l will be produced from 15.0 \text{ g}15.0 g15, point, 0, start text, space, g, end text of \ce{KClO3}KClOX 3 ? moles (round to three significant figures) What does it mean to "introduce a quotation"?That you need to format the type correctly as you work.That a quotation cannot stand alone as its own sentence.That you should research the background of the author.That you need to bold the text. The reaction between sucrose and water to produce fructose and glucose is first order // overall. The data below shows the change in concentration of sucrose over time at 298 K. C12H22011 (aq)sucrose + H2O(l)C6H1206(aq)fructose + C6H1206(aq)oucose C12H2201l M Time (minutes) 1.002 0.808 0.630 0.0 60.0 130.0 a. Find the average rate ofdisappearance of C12H22011 from t = 0 min to t-60 min. b. Find the average rate of appearance of fructose from t 0 min to t 60 min. c. Calculate the rate constant, k, for the decomposition of sucrose at 25C. Include units. d. How long will it take for the concentration of sucrose to drop from 1.002 to 0.212 M? e. What is the half-life for the decomposition of sucrose at 25C? - The Blast Off Music Company makes CDs and DVDs. The company can make a total of 500 CDs and DVDSeach day. It costs $8 to make each CD and $10 to make each DVD. The company can spend $4800 forproduction costs each day. How many individual CDs and DVDs can The Blast Off Music Company make inone day? where all american in the Manifest Destiny? someone pleaseeee help me The coordinates of the vertices of parallelogram CDEH are C(-5, 5), D(2, 5), E(-1, -1) and H(-8, -1). What are the coordinates of P, the point of intersection of diagonal CE and DH? Which statement supports Newton's first law of motion?Planets can change the direction of their own orbital path.Planets with more inertia will not be impacted by the Sun's gravity.Planets can move at a varying speed due to forces exerted in space.Planets with a greater mass will orbit more quickly than smaller planets. Two angles form a linear pair. One angle measures 8 less than three times the other. Find the measures of the angles. It has been decided that 100 people need to be surveyed to decide the publics opinion on a school building project. A student suggests that they survey the first 100 people who enter the school. Do you think that this proposed way of sampling is an unbiased way to perform the survey? Which of the following variances cannot occur together during the same accounting period? Multiple Choice Unfavorable labor rate variance and favorable labor efficiency variance. Unfavorable labor efficiency variance and favorable material quantity variance. Favorable labor rate variance and unfavorable total labor variance. Favorable labor efficiency variance and favorable material quantity variance. None of the other answers are correct, because all of these variance combinations are possible. A piano teacher charges students $20.25 each month, plus $5.25 per hour for lessons.Which expression and value represent the total the instructor will charge a student for x hours of lessons in a month and the amount the instructor would charge a student for 15 hours of lessons in a month?$20.25 x; $15$20.25 + x; $25.50$20.25 $5.25x; $58.50$20.25 + $5.25x; $99 Solve: g^2x+1=g^3x-2x=? Which statement describes the February (March) Revolution?The Bolsheviks murdered the tsar and his family.Gregory Rasputin controlled the tsarina.The tsar resigned at the advice of others.The Mensheviks urged gradual reforms. John's 8yearold Chevrolet Trail Blazer requires repairs estimated at $6,000 to make it road worthy again. His wife, Sherry, suggested that he should buy a 5yearold used Jeep Grand Cherokee instead for $6,000 cash. Nick estimated the following costs for the two cars: Trail Blazer Grand Cherokee Acquisition cost $26,000 $6,000 Repairs $6,000 Annual operating costs (Gas, maintenance, insurance) $2,680 $1,700 What should John do? What are his savings in the first year? Question 3 options: Fix the Trail Blazer; $3,980 Buy the Grand Cherokee; $7,700 Buy the Grand Cherokee; $ 980 Fix the Trail Blazer; $680 The formula a=119e^0.027t models the population of a particular city, in thousands, t years after 1998, when will the population of the city reach 178 thousand Which of the following is a synonym for ARBITER?schemermodelmoderatorequal PLZZZZZ ANSWERR FASTTT Corbin recorded the amount of money spent, in dollars, on food per meal at two different restaurants. He rounded the amounts to the nearest dollar and plotted the data on the box plots below. A box plot titled Dollars Spent at Restaurant 1. The number line goes from 0 to 15. The whiskers range from 6 to 14, and the box ranges from 7 to 12. A line divides the box at 8. Dollars Spent at Restaurant 1 A box plot titled Dollars Spent at Restaurant 2. The number line goes from 0 to 16. The whiskers range from 6 to 15, and the box ranges from 8 to 12. A line divides the box at 10. Dollars Spent at Restaurant 2 Which best explains at which restaurant the average meal costs the most money? Restaurant 1, because the interquartile range of Restaurant 1 is greater Restaurant 1, because more of the graph is located to the right of the median Restaurant 2, because the median of Restaurant 2 is greater Restaurant 2, because the range of Restaurant 2 is greater The difference between two numbers is 12. Four times the larger number decreased by 25 equals 48 increased by 3 times the smaller number. Find the numbers.