What does the cardiovascular system do?

carries hormones for the endocrine system
transports oxygen and carbon dioxide for the respiratory system
sends nerve impulses to the brain and spinal cord
carries nutrients for the digestive system
works with the immune system to fight infection

Answers

Answer 1
It’s could be the second one but I’m not sure sorry
Answer 2

Answer:

transports oxygen and carbon dioxide for the respiratory system

Explanation:


Related Questions

Can someone help? I don’t understand this at all.

Answers

Answer: the part where it says *eyecolor* man/woman ect. you choose an abbreviation for it i’m think and then for #3 you would put cb or sum for color blind on the top left, the left side on that same square, ncb for noncolor blind on the bottom square on the left, and ncb above the top right place, fill in the area labeled cb/cb with cb cb, the area under would have cb ncb, top right would be ncb cb n the one under would be nbc nbc (a) 25% (b) 25%

Explanation:

what are two limits to cell growth

Answers

Two limits to cell growth is by rates of protein synthesis and by the folding rates of its slowest protein

Describe where in nature you would see contaminated water actively weathering rocks and how it may differ from non-contaminated water.

Answers

Answer:

The contaminated water contains harmful chemicals which results in the cracking of rock.

For example: The feldspar crystals within the granite react with the water chemically to form clay minerals which makes the rock weak and hence result in weathering.

Was Minato's last name Senju? It was never revealed in the show. Maybe it was in the comics?

Answers

Answer:

it was minato namikaze fatther of naruto and husband of the red hared woman and yes it was revealed in the show

Explanation:

use your own words to explain planetary gravitation. provide an example.

Answers

The planets moons movements and the attraction that can be caused between it

Example : Pluto gains a fourth moon Or a massive new planet in our solar system

I need Help please?????!!!

Answers

Force I believe because gravity only pulls

Answer:

force

Explanation:

Force is as follows, strength or energy as an attribute of physical action or movement.  (ex of physical action. push or pull)

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Primer design is a critical step for the detection of a particular sequence in a sample. Which of the following would be true of primer design?

Answers

The group of choices is as follow:

A. RNA polymerase are added to the PCR mix to design random primers  

B. If detecting viral infection by PCR, the primers must not be complimentary (match) to regions of human DNA  

C. Pairs of primers must be designed, one to start amplification with Taq polymerase, the other to start amplification with human polymerase  

D. Primers are optional if you want to amplify all DNA within a sample

Answer:

The correct answer is - B. If detecting viral infection by PCR, the primers must be complementary to regions of human DNA.

Explanation:

Short, single-stranded segments of DNA sequences utilize in the real-time PCR or polymerase chain reaction technique are called primers. Primers used to hybridize the region of the segment needed to be amplified.

The human polymerase enzyme is not used in the PCR reaction and requires a 3'OH group to synthesize the DNA by amplification which is possible only in the presence of primers as they have a 3'OH.

A firefly uses chemicals in its body to produce a glowing body. What energy transfer is this?

Answers

Answer

Bioluminescence is a chemical reaction. It takes place inside the light-producing organ of a glowing creature. Fireflies, for example, make light in their abdomens. The chemical reaction produces energy in the form of photons.

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What is cancer? Explain what a doctor means when he or she says the cancer has “metastasized.” (Provide examples)

Answers

Answer:

A disease that causes cells to grow too rapidly

Explanation:

The cancer has spread to another part of the body where there originally wasn't any cancer. Ex: If someone was diagnosed with thyroid cancer and then later they're told the cancer has spread to their lungs

Cancer  is characterized by abnormal cell growth when a cell does not divide naturally, it is said to have metastasized, which means that the cancer has spread from one part of the body to another.

What is the significance of the cancer?

It is a type of condition where the person's normal cell growth is hampered, and it has a significant impact on an individual, leading to a wide range of symptoms such as pain and fatigue and increasing mental health issues and an example of metastasis is the brain cancer can move to the lungs and other parts. Due to the significant advancements in the diagnosis and treatment of cancer, an earlier stage can be detected and the later stage can be somewhat cured.

Hence, cancer is characterized by abnormal cell growth when a cell does not divide naturally, it is said to have metastasized, which means that the cancer has spread from one part of the body to another.

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Which polymer
can be found "freely floating" in the cytoplasm of a bacteria?
A) proteins
B) lipids
C) carbohydrates
D) nucleic acids

Answers

It’s actually bacterial DNA

.Explain why the scientific process is important when learning about diseases.

Answers

Answer:

The scientific process is important when learning about diseases because it allows to obtain reliable and valid knowledge about the different existing diseases, it helps in solving problems correctly and it is the best tool to nullify arbitrary opinions regarding a diagnosis or treatment, taking into account each of its stages.

Explanation:

The scientific method is a process through which relationships between facts are established to arrive at the verification of something. Through this step by step in which facts are discarded and added, the answers to findings are based. It is through the information generated by the research that it is possible to associate and / or integrate a set of symptoms and signs with a probable nosological diagnosis. Similarly, the selection of treatment and even the prognosis of patients depend on the information obtained from a population of subjects who share attributes; they depend, in a word, on research. Bearing in mind the scientific process, scientific thinking develops with practice, and for this it is necessary that there be constant reflection on the problems, have guides for the interpretation of medical reading, develop research protocols, learn to collect and analyze data about diseases.

Scientific is very important in order to obtain information about the disease.

The scientific process is important when learning about diseases because it provides information about various aspects of diseases as well as provides solution about cure of the disease.

This scientific process or method can be used for obtaining information about the causes of disease, its causing agents and cure for the disease so we can conclude that scientific is very important in order to obtain information about the disease.

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help me with the one that is in blue

Answers

Answer:

I think one is nitrogen. We have approximatly 78% of that in the atmosphere.

Another would be oxygen we have 21% of that.

We have argon and we have 0.93% of that.

Lastly we have carbon dioxide. And we have 0.04% of that.

Hope this helps.

Which tool is used to test for nitrates?

A. turbidity test
B. pH meter
C. soil testing kit
D.water quality testing kit

Answers

The tool which is typically used for testing nitrates is: C. soil testing kit

Nitrogen is a chemical element with the symbol "N" and it has an atomic number (number of protons) of 7.

Basically, nitrogen is found in group (5) of the periodic table and as such it has 5 electrons in its outermost shell.

Oxygen is a chemical element with the symbol "O" and it has an atomic number (number of protons) of 8.

Generally, when nitrogen and oxygen react chemically, they produce a compound known as nitrogen dioxide.

In Chemistry, nitrates are chemical compound that comprises nitrogen and oxygen.

Also, nitrates are used in the production of soil fertilizers in agriculture.

In conclusion, a soil testing kit is mainly used to test the presence of nutrients such as nitrates in soils.

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Which ecosystem is more stable - a potato field or a forest?

Answers

Answer:

A forest ecosystem is more stable than a potato field.

Explanation:

The forest ecosystem is a natural one and all the elements are balanced, they are managed by the nature itself.

The forest ecosystem is a natural one, and all the components are in harmony since nature herself manages the ecosystem.

Thus, A forest ecosystem, or simply a forest, is a community of plants, animals, microorganisms, and other species that interact with the chemical and physical elements of their environment.

The species in a forest ecosystem are depending on one another in order to survive, and they can be roughly categorized as producers, consumers, and decomposers based on their ecological roles.

The boreal forest that surrounds the Earth in northern latitudes is an example of a vast forest ecosystem. A forest ecosystem can also be as small as a microsite on a tree limb where mosses, insects, and microscopic species coexist.

Thus, The forest ecosystem is a natural one, and all the components are in harmony since nature herself manages the ecosystem.

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The vertebrate lung first appeared in ___________.

Answers

Answer:

fishes

Explanation:

A progenitor feature found in early boney fish served as the basis for the development of the vertebrate lung.

What are vertebrate lungs?

The lung of modern vertebrates evolved from a structure that was present in the ancestors of early boney fish.

Lungs in vertebrates originated as extra air-breathing organs in primordial fishes and were ventilated by buccal pumping when they first appeared. In more modern fishes, the organ formerly known as the lungs has been replaced with the hydrostatic swimbladder. This fundamental kind of unicameral lungs and the buccal pumping ventilation observed in these lungs can also be found in more modern amphibians.

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why are Some substances allowed to cross the cell membrane while other substances are not?

Answers

Answer:

membranes are semipermeable so only let certain materials in and out; if there are carrier or channel proteins, then passive transport can occur otherwise active transport is required which requires energy.

Explanation:

membranes are semipermeable so only let certain materials in and out; if there are carrier or channel proteins, then passive transport can occur otherwise active transport is required which requires energy.

plz help i need this done fat thank you

Answers

Answer:

1,4,5

Explanation:

If you needed to sterilize a mattress, which of the following would be most useful?
Question options:

membrane filtration


phenolics

incineration

UV radiation

carbon dioxide (scCO2)

Answers

Answer:

d

Explanation:

Who is Thomas Malthus?

Answers

Answer:

Thomas is an English economist and demographer. He is best known for his theory that population growth will always tend to outrun the food supply and that betterment of humankind is impossible without stern limits on reproduction.

Explanation:

true or false: The main reason why living organisms require a constant supply of energy is to maintain themselves in a highly organized state.

Answers

Answer:

true

Explanation:

Answer:

True

Explanation:

it's true because

What do tropical rainy and temperate marine climates have in common?
O dry winters
O very few trees
O very hot temperatures
O high levels of precipitation

Answers

High level of precipitation
The answer is c high levels...

If you are experiencing Na channels deactivating the plasma membrane which hyperpolarizes the membrane which sense is being activated?

Answers

The options are missing from the question,below are the options.

A) touch

B) smell

C) hearing

D) sight

The correct answer to the question is option D

SIGHT.

If one is experiencing Na channels deactivating the plasma membrane,the sense that is being activated is SIGHT,

this is because in the red blood cell,the light induced isomerization of the moiety retinal rhodoesin produce activated opsin which goes ahead to activate the signal transducing G-protein transducin,this it does by catalyzing exchange of GTP (Guanosine triphosphate) for bound GDP(guanosine diphosphate) on the subunit.

This GTP in turn activates the level of CGMP (Cyclic guanosine monophosphate) phosphodiesterase and it further acts to lower the level of CGMP.

Upon this reduction,it leads to the closing of CGMP-gated Na+ channels and hyperpolarization of the membrane.

Crust is created at which type of plate boundary?

Answers

Answer:

At convergent boundaries

Explanation:

"continental crust is created and oceanic crust is destroyed as it subducts, melts, and becomes magma."

Hope this helps!!

can someone help me with this worksheet

Answers

Answer:

1. tissues

2. skin

3. connective tissues

4. brain

5. organ

6. taste buds

7. epithelial tissues

8. organ ssytems

9. organism

10. nerve tissues

How do the Atlantic and Pacific profile differ from one another? Be descriptive of each region of ocean floor?

Answers

They are different oceans and different names and are on separate sides of the earth

Can someone help? I don’t understand this at all

Answers

Answer: a plant with genotype rr will have red phenotype as the dominant, since there are two, same goes for ii, it will have ivory phenotype as the dominant. Meaning the one with ri would be of equal dominance. While the answer to the question on the bottom will be 1/2 or 50/100 chance of the pick one getting picked since, well, there is one of each plant, the possibility will have an equal chance of getting picked.

Explanation: hope this answers some of your questions.

Which are the main stages of the cell cycle? Select three options.

interphase
mitosis
metaphase
cytokinesis
anaphase
I will look back on my test and whoever is right and if they were both right I will mark the first one that answers brainliest!

PLEEASE HELP!

Answers

Answer:

interphase

mitosis

Cytokinesis

Explanation:

three stages of the cell cycle interphase longest part of the cell cycle cell grows and develop and function Parts in our body almost at the end of the interphase DNA and chromosomes double mitosis stage in cell where cell divides into nuclei Cytokinesis the two daughter cells create as the cytoplasm divides each daughter cell has an exact copy of parent cells DNA

hope this helps :)

Discuss how constraints related to biology and management affect the choice of a crossbreeding system. Please be descriptive.

Answers

Answer:

Some important constraints:  

-Plant breeding: autogamy and allogamy, self-sterility, etc  

-Animal breeding:  trait compatibility

- Breeding systems in general (i.e., both in plants and animals): barriers for sexual reproduction  

Explanation:

Crossbreeding systems consist of the breeding between two breeds in order to develop progeny with particular advantageous phenotypic traits. In-plant crossbreeding systems, it is imperative to have into account whether the plant is autogamous (reproducing by self-pollination) or allogamous (reproducing by cross-fertilization), because it will affect the fitness of the progeny resulting from these breeds. Moreover, the biological mechanisms of self sterility and compatibility must be also taken into consideration. In-animal breeding systems, it is important to have into consideration that phenotypic traits we desire to obtain in the progeny must be compatible between races. In addition, the barriers for sexual reproduction are also an important issue both in plant and animal breeding systems, it thus being impossible, for example, to get a breeding between Chihuahua and Great Dane dogs.

How does sugar affect people

Answers

Answer:

The effects of added sugar intake: higher blood pressure, inflammation, weight gain, diabetes, and fatty liver disease... are all linked to an increased risk for heart attack and stroke.

Explanation: Hope this helps <3

5. Animals depend on plants for carbon dioxide..... True or False ​

Answers

true they depend on plants forco2

Answer:

No

Explanation:

Animals get Carbon dioxide from the air, and carbon dioxide is emitted by burning of fossil fuel

Other Questions
4. Write the modal class of the following frequency distribution:Class interval 10-20 , 20 - 30 ,30 - 40, 40-50, 50 - 60Frequency..33386552 1948 this is due today help What mass of the calcium carbonate, to the nearest hundredth of a gram, is decomposed in this reaction. I HAVE 5 MINUTES The FenceI sat in the truck and looked out over the dashboard at my dad. The lights from the truck's headlights lit up the night and I could see my dad as he knelt in the snow to inspect the mangled fence. I watched quietly as he looked at the damage. Muddy tire tracks led from the road to the damaged fence. Broken wood and wire were everywhere. Broken glass lay beside a fence post. It looked bad.My dad struggled to straighten the wire. He was having a very hard time. The fence needed a lot of work. Dad stood up, brushed the snow from his pants and walked back to the truck. A gust of wind entered the truck as he climbed in."Can you fix the fence?" I asked my dad as he settled in the truck."I think so," he said. "But it's too dark to fix now and I need my tools and more wood." I thought he might tell me more."It will be a big job. It isn't right that you have to fix it all by yourself when some one else crashed through it and ruined it," I said.My dad looked at me and smiled. "I think someone will come forward and admit to hitting the fence," he said.When we arrived at home, dad made me hot chocolate. I sat at the table in the kitchen and sipped my drink slowly as I listened to the wind howling outside.Thirty minutes later, as we cleaned up our hot chocolate, light shown across our lawn and into our kitchen. Dad and I looked outside to see who was there. As I looked outside, I noticed the car in the driveway only had one headlight. The car stopped and the driver walked through the snow, towards our front door."Are you Mr. Smith?" the stranger asked when dad opened the door."Yes," Dad answered. "How can I help you?""Well, sir, my name is Tom Jones. I want to apologize for running into your fence this morning." Mr. Jones went on the explain he had been driving home from work and hit an icy patch and slid off of the road. He apologized again and promised he would help my dad fix the fence. He wrote down his name, address, and phone number on a piece of paper. He gave the paper to my dad. He shook my dad's hand and left.Dad smiled as he closed the door. Dad could see I was surprised that someone had come to tell the truth. "Dad, how did you know someone would come and tell you about the fence?" I asked.Dad said, "Well, I know I would have done the right thing, and I know you would have done the right thing. I think that most people have good hearts. I had faith this person would do the right thing too."1) Read the following sentence from the story.He apologized again and promised he would help my dad fix the fence when the snow melted.Based on this sentence, Mr. Jones can BEST be described asA) adventurous. B) honest. C) proud. D) unreliable. 2) What can the reader conclude about Mr. Jones's car only having one working headlight?A) The light bulb has burned out. B) Ice and snow blocked one headlight. C) The headlight broke in a car accident. D) The car was old so the light didn't work. A boy is going down a slide. As he reaches the bottom, friction causes him to slow down and stop. Which one of Newton's laws is this?2nd law3rd law1st law4th law A candidate won an election by beating his nearest rival by 724541 votes. If the candidate received 1563198 votes, how many votes did his rival get? d to the 5th power times e to the 3rd power times f A car is traveling with a velocity of 20 M/S and has a weight (mass) of 1000 kg. The car has kinetic energy calculate it What is a ring? in reconstruction Order decimals from least to greatest .. 1.09, 1.901,1.9,1.19 Sarah: "Tell me all about your weekend! Was it nice to be on the beach?"Rose: "It was awful! It rained the whole time and I didn't get to spend any time on the beach at all. Instead, we were allcooped up in the hotel room; my little brother and sister were driving me insane! Hopefully that's the last family vacationwe take for a while!"Sarah: "I'm so sorry! My weekend was so boring, I spent the whole time by myself with nothing to do. If you'd been here,we'd have had lots more fun!"Rose: "It sounds like we both had pretty awful weekends and now we have to deal with that stupid Math test..."This dialogue reflects what aspect of communication?a. Women tend to communicate about experiences.b. Men tend to focus on problem solving.C. Men and women communicate in very similar ways.d. all of the above Ted made sure to slam the door as he left. He frowned as he stomped down the hallway. He didnt deserve this! He was the one who had come clean. If he hadnt told the principal about their plan to cheat on the math final, then they wouldnt have been able to prove anything. Why was he the only one getting into trouble? He shouldnt have confessed it at all! Ted was absolutely fuming.Based on the passage above, how was Ted feeling?A.boredB.furiousC.eagerD.confident What value of k makes the statement true?K-12=6+(-12)-18-6618 n 1885, the age of consent for girls in most states wasQuestion 1 options:1) 7.2) 10.3) 12.4) 14. Which of these ways to prepare beef is a favorite in Uruguay?fajitabarbecuestir-frygrilled A fish of genotype a/a ; B/b is crossed with a fish whose genotype is A/a ; B/b. What proportion of the progeny will be heterozygous for at least one of the genes Alexis walked 1.5 km to her house in 0.5 hours. What is Alexis' speed?3 km/hr.33 km/hrO 75 km/hrO 3 mph Which of the following is NOT a Puritan belief?Government and religion were connectedPure religious community where no one believes opposite of what the minister saysBanished those who did not follow the Puritan ChurchBelieved in tolerance of ALL religions which is the following is true about the colors of light The shelf is made of 3 pieces of wood, each 0.3 meters wide. There is also 0.05 meter of space between the shelf and wall on each side. What is the width, in meters, of Joslyn's closet