How does caffeine reach the brain after someone drinks a cup of coffee or tea? In your answer, be sure to identify the systems involved.

Answers

Answer 1

Answer:

When we drink coffee, caffeine binds to our brain's adenosine receptors, preventing the chemical from binding with the receptors and making us tired. For those of us who regularly drink coffee in copious amounts, our brains develop more adenosine receptors, so it takes more coffee to keep us awake.

Answer 2
There, caffeine interacts with some neurotransmitters and promotes central nervous system's stimulation. ... Then, central nervous system's receptors send impulses to endocrine system to secrete some hormones that will affect person's behavior.

Related Questions

How many and what types of chromosomes are found in every one of your cells?

Answers

There are 23 chromosomes in a cell but I’m not sure what types they are

Uranus is which planet from the sun?

Sorry about the subject, there is no science subject so I chose randomly

Answers

Uranus is the 7th planet from the sun :))

☀️sun☀️
1. Mercury
2.Venus
3.Earth
4.Mars
5.Jupiter
6.Saturn
7.Uranus
8.Neptune
Hope it helps!!

PLEASE HELP: In which kingdom do the cells of all organisms lack cell walls?

A. Archaea
B. Fungi
C. Plantae
D. Animalia

Answers

D. All other kingdoms, Archaea, Fungi, and Plantae have a cell wall in at least one of their organisms. The animalia kingdom is the only one out of the four that lack a cell wall.
D !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

How is it possible for some organisms to survive using only fermentation and not cellular respiration?

Answers

Answer:

Both of these processes can happen thanks to alternative glucose breakdown pathways that occur when normal, oxygen-using (aerobic) cellular respiration is not possible—that is, when oxygen isn't around to act as an acceptor at the end of the electron transport chain. These fermentation pathways consist of glycolysis with some extra reactions tacked on at the end. In yeast, the extra reactions make alcohol, while in your muscles, they make lactic acid.

Which item does not contain a noble gas?

neon sign
mp3 player
flash camera
helium balloon

Answers

Answer:

flash camera I think I'm perty sure

like the other guy said i think its flash camera too

Plz help it due today it 5 question (Math) I will mark you Brainliest

Answers

answer:

first question = multiply both sides by 3, do not reverse the inequality symbol

second question = start at -8 draw a closed circle draw the arrow pointing right.

third question = B

fourth question = 11 [tex]\leq[/tex] a

fifth question = 0.8, 5.9

-- please mark the brainliest and click the thanks button if correct :)

Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

i believe that the answer is B
I think the answer is b

How do cells get energy from glucose? How do they use that energy?

Answers

Answer:

Image result for How do cells get energy from glucose?

Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.

Explanation:

Which of the following is NOT a condition necessary for fossilization to occur?

A. Rapid and permanent burial

B. Presence of heat

C. Lack of oxygen

D. Continued sediment accumulation

E. Absence of compression

Answers

I think the answer is b

Answer:

its b

Explanation:

just took the test

please help me with this!! I will mark brainliest!

Answers

Well, the seedless plants reproduce and when they do produce, they provide good for the consumers in the environment and omnivores . Also when reducing, the release carbon dioxide, and when the animals die the body’s leave nutrients , which means that it will dig into the soil and will be used by other organisms.

Which are characteristics of flukes? Check all that apply. They are free living. They are a type of flatworm. They reproduce sexually. They have eyespots. They are segmented.​

Answers

they are a flat worm
they reproduce sexually
they have eyespots

Answer:

cad

Explanation:

BRAINLIEST IF ANSWER QUICKLY

1. Identify a period of time when this population showed exponential growth? Explain how you know this.

2. At what point in time did the population reach its carrying capacity? Explain how you know this.

3. The population's actual growth (in red) often goes above and below the carrying capacity in a cycle, why do you think this happens?

Answers

Answer:

1. 1850

2. it stays on carrying capacity until, about 1835

3. because people are born in generations

Explanation:

1. because the overshoot line grows very quickly around 1850

2. simply an estimate to where i think it lines up

3. once one generation is born, the older one dies.

Answer:

1. Around 1850 is the period of time when the population showed exponential growth.

2. The population reached its carrying opacity technically around 1850 as well but it was much closer to the direct line at around 1870-1875.

3. I believe this happens because of sickness and people choosing to leave the area. (There are many other reasons I am sure you can come up with)

Explanation:

These are the answers that fit best! I a so sorry for taking so long! You should certainly give brainliest to someone else but still-

If you found this to be helpful please leave a thanks, and a rating!

If this answer is correct maybe you can mark my answer brainliest! I hope you do well on your assignment!

~Ace <3

What would happen to the oxygen cycle if the carbon cycle didn't exist?

Answers

Without carbon dioxide, the plants would not do as well, and potentially die, creating a problem for all the animals on the planet, Since they have to breathe oxygen to live. Oxygen is given off as a waste product by the plants while they are conducting photosynthesis.
Without carbon, oxygen would not exist

The stem of a plant is experiencing phototropism. Which statement correctly describes the plant's response?

Answers

Answer:

A the stem moves towards the light for better photosynthesis

Explanation:

saw it happen

Answer:

The Answer is A  

Explanation:

Growth in plants reflects the way in which they interact with the environment. If we place a strong light at one side of this fuchsia plant, the plant will grow towards it. This is called a phototropic response.

According to the table "Balance of the Carbon and Nitrogen" on page 6, which substance has the highest carbon to nitrogen ratio?




Pick the answer choices down below!!!

Answers

Answer: Vegetable waste

Explanation:

Vegetable waste is the answer

PWEASE HELP ME >﹏<
Due to the known mutualistic relationships between M. smithii, Bacteroides, and the human gut, why might overweight study subjects have a different methane and hydrogen profile compared to healthy weight study subjects?

Answers

Answer:

dont come at me im only answering so i can text a cute boy

Explanation:

Fill in the blank.

_____ _____ curvy wavy ___ ___ lil waist!

-Megan Thee Stallion

Answers

Body crazy big titties

Answer:

body crazy big titties

Explanation:

i know the songwho doesn't

Which best explains why sexual reproduction produces greater variations among offspring? *

A The DNA come from two genetically different parents.
B The DNA cells from one parent that is genetically identical.
C The sex cells are produced by mitosis.
D The sex cells undergo self fertilization

Answers

Answer:

A The DNA come from two genetically different parents.

Explanation:

Everyone has different genetics. They are determined by sex cells that are produced by MEIOSIS NOT mitosis. Meiosis allows for genetic variation amoung offspring along with the genetically different parents.

The DNA come from two genetically different parents explains the best reproduction greater variations among offspring.

What is sexual reproduction?

Reproduction is the act of one or more parents creating a new individual (offspring), frequently within the same species. It is among the characteristics of a living creature.

Sexual reproduction, we mean a process where two parents' genetic material is combined to create a child. When two haploid gametes combine, a genetically unique diploid child is produced.

The word "sexual" has a Late Latin etymology that stems from the word sexus, which means "of copulation or generation." The word reproduction is also derived from the Latin words re, which means "again," and productio, which means "creation." Alternative: syngenesis.

Therefore, The DNA come from two genetically different parents explains the best reproduction greater variations among offspring.

To learn more about sexual reproduction, refer to the link:

https://brainly.com/question/7464705

#SPJ6

PLS HELP! I need help with this question

Answers

The heart pumps blood
B. The heart pumps blood in the body.

Can someone help me with my ILP ?!

Answers

What do you need help with ??
I can help jus dm me or post it

which of these is not a molecule
A) DNA
B) water molecules
C) single atoms
D) medicines

Answers

I think it’s D because Medicines don’t really have molecules

Answer:

d) medicines

have a nice day! <3

brainliest! question is in pic

Answers

Answer:

I know the muffin man and the muffin man knows me lol

I unfortunately do not know the muffin man and he does not know me

How might scientists adjust the current taxonomy, and what evidence would they use to support this change?

Answers

Answer:

a

Explanation:

The answer is a I think

EASY POINTS IF YOU ANSWER THEM CORRECTLY!! the questions are easy and I don't feel like doing them but plz answer correctly before 3:00 PM est (will give brainliest to whoever answers all of them at once.)

Answers

There is no image try to upload ago


Write each characteristic in the space below for each photograph. Some characteristics will be described more than one photograph.

Characteristics:

Grains have been eroded a great distance.

Grains have been eroded a short distance.

Differential weathering.

Sediments deposited in horizontal layers.

Likely deposited after being eroded by flowing water.

Well-sorted sediment.

Differential weathering (also I’m not sure why there’s two of them but this is another characteristic as well)

Sediments deposited in horizontal layers (again, I’m not sure why there’s two of them but this is another characteristic as well)

Answers

I do not know what the answer is.

I do just dm me I con do it there

The Punnett square below shows a cross between 2 pink flowers. What is a percentage that a pink flower will be produced? *

Answers

Answer:

50%

Explanation:

rr, rw, rw, ww

3a.Select True if the statement is true; select False if the statement is false.

The change in temperature from January to February is the same pattern in both graphs.
True
False

There is more precipitation in April than in May in both graphs.
True
False

There was more precipitation in 1981–2010 compared to 1901–1930.
True
False

January, July, and December temperatures were higher in 1981–2010 than in 1901–1930.
True
False

You don't need so many years of data to show climate change; 5 years is enough.
True
False
3b.Do these data support climate change?


Yes, because the climate has changed in New York

No, because these data include only one city

Yes, because the temperature has increased over time

No, because the changes are not very large

Answers

I think False is the answer
I’m not sure but I think maybe false don’t count me on that I remember doing this before I just can’t remember sorry

According to the American Council of Exercise, overweight people have, on average, greater than 30% body fat. In graph B, what do you notice about the amounts of hydrogen and methane in subjects with healthy body fat percentage compared to subjects who were overweight?

Answers

Answer:

Subjects in the “normal” group had a normal amount of hydrogen, 20 ppm  or less, and a normal amount of methane, 3 ppm or less.   If subjects had greater amounts than the normal amount of hydrogen (≥20 ppm) detected but had less than the normal amount of methane (≤3 ppm), they were considered hydrogen positive (represented by the “Hydrogen Only” bar), while ≥3 ppm of methane detected but ≤20 ppm of hydrogen was considered methane positive (represented by the “Methane Only” bar).  If subjects had greater than the normal amounts of both gases (≥20 ppm of hydrogen and ≥3 ppm), they were considered hydrogen and methane positive (represented by the “Methane and Hydrogen” bar).

i hope this helps

a city is concerned about global warming in smoke. It wants to reduce the impact of its use of fossil fuels. Explain how the city could use technology to reduce fossil fuel use by changing (a) its transportation, (b) it’s buildings, (c) services for city residents.


Plsplspls help

Answers

Answer:

a) Increasing the toll for non carpoolers will motivate people to carpool and therefore will decrease the number of cars in the road burning fossil fuels.

b) Tax breaks for buildings that use solar panels for energy. This reduces fossil fuels burned for electricity.

c) The city can increase the amount of city transportation available. While this may seem counterproductive because the amount of buses or trains or boats burning fossil fuels increases, by doing this more people will have easy access to public transportation and it has been shown that public transportation is more effective in reducing fossil fuel usage per head. Providing more options of public transportation will increase their usage and therefore will over decrease the amount of fossil fuel burned by individuals which will overall decrease fossil fuels burning.

Explanation:

What niches, or specific ecological roles, have M. smithii and Bacteroides established in the human gut ecosystem?

Answers

Answer:

Bees

Explanation:

According to all known laws of aviation, there is no way a bee should be able to fly. Its wings are too small to get its fat little body off the ground. The bee, of course, flies anyway because bees don't care what humans think is impossible. Yellow, black. Yellow, black. Yellow, black. Yellow, black. Ooh, black and yellow! Let's shake it up a little. Barry! Breakfast is ready! Ooming! Hang on a second. Hello? - Barry? - Adam? - Oan you believe this is happening? - I can't. I'll pick you up. Looking sharp. Use the stairs. Your father paid good money for those. Sorry. I'm excited. Here's the graduate. We're very proud of you, son. A perfect report card, all B's. Very proud. Ma! I got a thing going here. - You got lint on your fuzz. - Ow! That's me! - Wave to us! We'll be in row 118,000. - Bye! Barry, I told you, stop flying in the house! - Hey, Adam. - Hey, Barry. - Is that fuzz gel? - A little. Special day, graduation. Never thought I'd make it. Three days grade school, three days high school. Those were awkward. Three days college. I'm glad I took a day and hitchhiked around the hive. You did come back different. - Hi, Barry. - Artie, growing a mustache? Looks good. - Hear about Frankie? - Yeah. - You going to the funeral? - No, I'm not going. Everybody knows, sting someone, you die. Don't waste it on a squirrel. Such a hothead. I guess he could have just gotten out of the way. I love this incorporating an amusement park into our day. That's why we don't need vacations. Boy, quite a bit of pomp... under the circumstances. - Well, Adam, today we are men. - We are! - Bee-men. - Amen! Hallelujah! Students, faculty, distinguished bees, please welcome Dean Buzzwell. Welcome, New Hive Oity graduating class of... ...9:15. That concludes our ceremonies. And begins your career at Honex Industries! Will we pick ourjob today? I heard it's just orientation. Heads up! Here we go. Keep your hands and antennas inside the tram at all times. - Wonder what it'll be like? - A little scary. Welcome to Honex, a division of Honesco and a part of the Hexagon Group. This is it! Wow. Wow. We know that you, as a bee, have worked your whole life to get to the point where you can work for your whole life. Honey begins when our valiant Pollen Jocks bring the nectar to the hive. Our top-secret formula is automatically color-corrected, scent-adjusted and bubble-contoured into this soothing sweet syrup with its distinctive golden glow you know as... Honey! - That girl was hot. - She's my cousin! - She is? - Yes, we're all cousins. - Right. You're right. - At Honex, we constantly

Other Questions
PLEASE HELP ASAP!! Folk songs are filled with historical allegory and are deep in meaning and visual lyrics. Pick a common folk song such as Simple Gifts by Elder Joseph Brackett. Write the words down to the folk song and describe the meaning of the song. (You can make use of the internet to research the song)I know this is kinda a lot to ask so whoever answers gets 35 points. PLEASE ANSWER RIGHT DO NOT JUST PUT NOTHING JUST TO GET THE POINTS! What is the value of 80 + 57 SOMEONE PLEASE HELP ME I WILL MAKE YOU THE BRAINLIEST AND GIVE YOU A GREAT RATE!!!!!!! JUST PLEASE ANSWER THIS CORRECTLY ASAPPPP!!!!!!!!!!!!!!!!!!!! So the African bush elephant weighs between 4.4 tons and 7.7 tons what are its least and greatest weights rounded to the nearest ton ? What does King Lears question suggest about his personality? Someone plz help me have a great day Write the equation of the line with the given slope and y intercept.m = 0.25 b = 6 (GIVING BRAINLIEST!!)Write a paragraph or two on why being a firefighter is dangerous(Im giving all my points!! :)) Each day, you do homework for m minutes and watch tv for 30 minutes. Which expression can you use to find how many minutes you do both activities in 5 days? Explain your reasoning. What is the area of `STR`?A. 30 square feetB. 34.5 square feetC. 57.5 square feetD. 60 square feetHere another one T^T Work backwards using the Distributive Property.8(2) + 6(2) =O 6(8+2)O 8(2 +6)O (8+6)2O 2(6+2) Can someone please help me. Its hard and I dont understand. Which of the following is true about CO_2CO2 ?AIt does not have much effect on the climate.BIt is a greenhouse gas.CVery little CO_2CO2 is being emitted now.DIf we cut CO_2CO2 emissions by half, the temperature will stop rising. Do any of you know this?? PLS! ANSWER ASAP!!! 45 POINTS! PLS OMG HELP ME ITS DUE SOON im gonna cry if no one helps, ive been posting these questions all day and no ones actually answering ahauhaiuhshsksjs bye ill just fail Finish the story. 300 wordsToday seemed like the perfect day until... Please help me with these questions on the Skeletal System1. Which is not a function of the skeletal system?A. Movement and protection B. Homeostasis C. Support D. Transport oxygen-rich blood to the body2. Which organism has an exoskeleton?A. A shark B. A human C. A black bear D. A common beetle3. What is main function of the skull?A. To keep out electromagnetic waves B. Allows for movement from one place to another C. Produces brain cells D. Protects the brain from injury4. Tendons and ligaments are used to ___________.A. Exchange gases within the body B. Transport nutrients to cells C. Produce red blood cells D. Attach bones to muscles and bones to bones. ABCD is a parallelogram. AB = x + 16, AD = 4y 4, CD = 2x + 8. If the perimeter of ABCD is 80, find the value of y. How do we find the area of a rectangle ?