What controls the heart rate in the human body

Answers

Answer 1

Answer: the nerve system

Explanation:

Answer 2

Answer:

Heart rate is controlled by the two branches of the autonomic (involuntary) nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS)

Explanation:

The sympathetic nervous system (SNS) releases the hormones (catecholamines - epinephrine and norepinephrine) to accelerate the heart rate

I hope this help you


Related Questions

All of these substances are found in the cell membrane except


phospholipids

cholesterol

transport proteins

ribosomes

Answers

Answer:

ribosomes

Explanation:

Determine the percent increase per year from 1999 to 2004

Answers

Answer:

Hey bud, I saw this was your first question. You need to attach some files to your question in order for us to see it. You can do that by using the Paperclip shaped icon on the bottom when you are making a question.

Explanation:

Dihybrid cross experiments led Mendel to propose his law of independent assortment.

Which statement best describes this law?


A. The law of independent assortment states that alleles of different genes are inherited together.

B. The law of independent assortment states that when two inherited alleles are heterozygous, the dominant allele is the one that is expressed.

C. The law of independent assortment states that alleles of different genes are inherited independently of each other.

D. The law of independent assortment states that alleles are separated when gametes form, causing gametes to carry only one allele for each gene.

Answers

Answer:

c

Explanation:

The answer is c: The law of independent assortment states that alleles of different genes are inherited independently of each other.

According to Mendel's law of independent assortment, the alleles of two or more distinct genes are sorted into gametes in a manner that is independent of one another. The allele a gamete acquires for one gene does not affect the allele a gamete receives for another gene, in other words. Thus, option C is correct.

What Mendel propose his law of independent assortment?

According to Gregor Mendel's law of independent assortment, genes are inherited independently of one another. Due to the fact that two genes are found on the same chromosome, linked genes constitute an exception to the rule of independent assortment; however, this effect is usually lessened when chromosomes cross over.

According to Mendel's law of independent assortment, the alleles of two or more distinct genes are independently selected into gametes. In other words, an allele for one gene does not impact the allele for another gene that a gamete acquires.

Therefore, The law of independent assortment states that alleles of different genes are inherited independently of each other.

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Where is the moon located in relation to Earth and the sun when it is a first-quarter moon? (1 point)


behind Earth and away from the sun

perpendicular to Earth and the sun

between Earth and the sun

behind the sun and away from Earth

Answers

Answer:

Moon lies perpendicular to a line between Earth and the Sun.

An analogous structure is one that:
A. comes from a common ancestor, but now has a different function.
B. has exactly a 4 bone type structure, including upper arm, forearm, wrist, and hand/foot.
C. has the same function in multiple organisms but evolved independently each time, without a common
ancestor.
D. no longer serves a function.

Answers

Answer:a

Explanation:a

An analogous structure is one that has the same function in multiple organisms but evolved independently each time, without a common ancestor. The correct option is C.

What are analogous organs?

Analogous organs are those organs that are different in different organisms and have grown in different times and have nothing in common, but they function similarly. The animals are anatomically very different, but some organs have the same functions.

Examples of analogous organs are:

The wings of a bat, a bird, and an insect.The fin of a dolphin and a shark.Sweet potato and potato.

Thus, the correct option is C. has the same function in multiple organisms but evolved independently each time, without a common ancestor.

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51. Evaluate each of the following, and write the answer to
the correct number of significant figures.
a. 97.381 + 4.2502 + 0.99195
b. 171.5 + 72.915 – 8.23
c. 1.00914 + 0.87104 + 1.2012
d. 21.901 – 13.21 - 4.0215

Answers

A I don’t really think it’s wrong but if it is I’m sorry

a problem that confounds attempts to organize the entire living world for study?

Answers

Answer:

A problem that confounds attempts to organize the entire living world for study is the need of evolutionists to bring the entire diversity of living things ultimately into.

In biology, living things can all be classified in accordance with other living things that share a specified set of common characteristics. A major challenge to the process of classification is that, in evolution, that this involves the need to classify all living things. The challenges being that there are many species on planet earth that once existed and are now extinct (i.e. they cannot currently be studied in living form) and that there may be species that do exist that have yet to be discovered and therefore cannot be classified. Finally, due to the sheer number of species on earth, it will literally take hundreds of years for scientists to classify all species.

16. One light year is the distance travelled by light in one year. If the speed of light is 3,00,000 km/s and light of the Sun takes 8.5 minutes to reach the surface of the Earth find the distance of the Sun from the Earth.​

Answers

Answer:

Distance=Speed×time

=300000×8.5 (1 minute= 60seconds)

Therefore 8.5×60=510seconds

=300000×510

=153000000Km

Explanation:

If you like my answer than please mark me brainliest thanks

the foot is ___ to the nose

Answers

Answer:

below

Explanation:

what are the options?

2) Jumping Pool *
1 point
vou
Gravitational force.
Frictional force.
O Magnetic force.
O Elastic force.
O i don't know.

Answers

Answer:

what type of answer do you want

Qual os três estados da água

Answers

Answer:

Los tres estados del agua son: sólido, líquido y gaseoso.

Explanation:

w
8. At the surface of a swimming pool a 2.0 L balloon is under 760 mmHg of pressure. If that balloon is taken to the
bottom of the deep end, the pressure is now 950 mmHg. What is the new volume of the balloon?
0.45 L
b. 1.6L
2.4 L
d. 95 L
a.
C.
voru

Answers

The new volume of the balloon is 1.6L

HOW TO CALCULATE THE FINAL VOLUME:

Using Boyle's law, which states that the pressure of a given gas is inversely proportional to its volume i.e PV = K

Boyle's law equation is as follows:

P1V1= P2V2

Where;

P1 = initial pressure (mmHg)P2 = final pressure (mmHg)V1 = initial volume (L)V2 = final volume (L)

According to this question,

P1 = 760mmHg

V1 = 2L

V2 = ?

P2 = 950mmHg

Using P1V1 = P2V2

760 × 2 = 950 × V2

1520 = 950V2

V2 = 1520/950

V2 = 1.6L

Therefore, the new volume of the balloon is 1.6L

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Moosehead Lake in Maine is a beautiful lake, spanning 74,890 acres with a maximum depth of 246 feet. The most sought-after fish to be found in Moosehead Lake are: Landlocked salmon, lake trout, brook trout, and burbot. According to Tim Obrey, a regional fisheries biologist with the Maine Department of Inland Fisheries and Wildlife, the fishing at Moosehead declined from phenomenal to just "really good" during the late 1980s, but has rebounded due to careful management. This table shows the populations of three major fish in Moosehead Lake over a 30 year period. Moosehead Lake was illegally stocked with smallmouth bass in 1970. Fish Populations in Moosehead Lake Year Smallmouth Bass Salmon Lake Trout

Smelts are the primary food source for lake trout and salmon in Moosehead. In the late 1980s, we documented a dramatic increase in the abundance of wild lake trout in Moosehead Lake. Swelling lake trout numbers taxed the forage base and the smelt population took a dive. What would be appropriate action for Wildlife Management to make to correct the problem? Choose ALL that apply.

B) One hundred small, one-hectare size areas should be conserved
C) Native species should be maintained or planted within the greenspace to promote biodiversity.
D) Exotic species should be cultivated and planted to increase biodiversity in the protected greenspace.
E) The majority of the secondary consumers should be removed from the greenspaces to promote an increase in lower levels of the food chain.

(WILL GIVE BRAINLIEST WHOEVER CAN ANSWER RIGHT!!!!!!)

Answers

When one of the trophic web links disappears, it affects the whole chain. In management programs it is important to consider these consequences to keep the whole ecosystem equilibrium. In the exposed situation, Native species should be maintained or planted within the greenspace to promote biodiversity and The majority of the secondary consumers should be removed from the greenspaces to promote an increase in lower levels of the food chain.

--------------------------------------

The trophic chain is the energy transference process that involves different organisms, from autotroph or producers, to the consumers or decomposers.

The disappearance of one link affects the whole system. The direct superior link does not have enough food supply, while the immediately anterior link is beneficiated for not being eaten by its predator. And finally, as this last link will overgrow, it will consume greater quantities of its food, causing a decrease in its anterior link. Top-down control refers to scenarios where superior predators control the structure and dynamic of an ecosystem.

It is necessary and significant to consider these modifications in the whole ecosystem while planning management actions to keep an equilibrium.

In the exposed example we know that the most wanted species are

Landlocked salmon, lake trout → which increased its population size sharply over the last yearsbrook trout, and burbot

Smelts, which are the primary food source for lake trout and salmon, decreased in population size significantly.

Finally we know that smallmouth bass was introduced in 1970.

This information suggests that the decrease in smelts' population is due to the predation of the species by the lake trout, which population increased sharply in size. The change on smelts' population size, might affect the blook trout and salmon populations, that also feed on semelts, and might also affect other species occupying inferior levels.

When implementing a management program, it would be necessary to promote biodiversity by growing native species in greenspaces and ensure their survival and reproductive succes. In the exposed case, it is necessary to preserve smelts' population, so it would be also necessary to remove from these green spaces the secondary consumers -trouts and salmon- that feed on them, to ensure the smelts' population growth and recovery.

--------------------------------------------

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Answer:

The Answer is A, C, and D

Explanation:

Wildlife management reacted to the increase in trout and depletion of smelt by liberalizing bag limits on lake trout and allowing harvest of smaller fish. We also severely reduced the salmon stocking rates. Salmon and trout populations had to be controlled until smelt could rebound.

Name the main energy-
storing products of each
phase of photosynthesis.

Answers

Answer:

Rubisco

Explanation:

what are real-life (small) examples of smooth er, rough er, RNA, and ribosomes?
I'll give brainliest

Answers

Answer:

preparing a surface of painting

Explanation:

painters spray down the exterior of a house with ribosomes before applying the first coat,so the paint will stick better.

Explanation:

Real life example: ribosomes

A "real life example" would be, a car factory. Car instructions go in (mRNA), car parts put together (amino acid chain) then completed cars leave (proteins)

how many organelles are there in a cell. What are their names and what do they do. I am keeping notes

Answers

Answer:

Nucleus - controls all activities of the cell

Nucleolus (in the middle of the nucleus)

- the synthesis of ribosomes and RNA (ribonucleic acid)

Mitochondria (battery of cell) - oxidise glucose to release energy in the form of ATP ( adenosine triphosphate)

Edoplasmic reticulum

1. Smooth - synthesises lipids

2. Rough- Transport proteins synthesised by ribosomes

Golgi apparatus ( golgi body, or any golgi, is has many names)

- Acts as Centre for processing, packaging and transporting macromolecules such as proteins and carbohydratez

Ribosomes - sites of protein synthesis

Lysosomes- Break down macromolecules such as proteins, lipids etc

Vacuoles - store food substances, site for waste products

Centrioles - form spindle fibres during cell division

Cytoplasm ( the so call empty spaces in the cell)

- place where biochemical reactions occur

Plasma membrane

-control movement of substances in and out of the cell due to its semi permeable characteristics

Ok that's all for animal cells, but for plants cells, there is more

Cloroplast - site for photosynthesis

Cell wall - Maintains the shape of plant call, give support to cells

please solve all the questions.​

Answers

Answer:

the duty of each of the professionals are:

Explanation:

1)junior technician of plants science

=to research about plants and give information to all the world

2)ranger

=to protect a forest or a certain place

3)forester

=to keep an eye on the forest and keep forest safe

4)jt of food and dairy products

=to research for food and give information about things related

What enzyme breaks down starch in your saliva?
pepsin
trypsin
lipase
amylase

Answers

Answer:

D

Explanation:

It is the amylase, or rather alpha-amylase

Reflection:
What challenges do you envision that would hinder the progress of a flipped
classroom?

Answers

Answer:

Explanation:

Need to Know. How are you creating a need to know the content that is recorded? Just because I record something, or use a recorded material, does not mean that my students will want to watch, nor see the relevance in watching it.

Engaging Models. One of the best way to create the "need to know" is to use a pedagogical model that demands this. Whether project-based learning (PBL), game-based learning (GBL), Understanding by Design (UbD), or authentic literacy, find an effective model to institute in your classroom.

Technology. What technology do you have to support the flipped classroom? What technology gaps exist that might hinder it? Since the flipped classroom is about recorded video, then obviously students would need the technology to do this.

Reflection. Every time you have students watch a video, just like you would with any instruction

What does the term "environment" describe?
The air, water, and land where something lives
O The physical space that matter takes up
O How quickly things grow
O The type of nutrients needed in soil

Answers

Answer:

The air, water, and land where something lives

Explanation:

Answer:

The air, water, and land where something lives

Explanation:

Environment is described as the surroundings and/or the conditions in which a living organism lives.

hope this helps! if you have any questions, let me know!

The Science of Biology: Question 1: Explain how sunlight is the primary source of energy for your own life? Question 2: In terms of energy, what is the difference between glucose and ATP? Question 3: Explain the role of a hypothesis in a scientific investigation? ( Will Mark Brainliest if correct). ​

Answers

Answer:

cause sunlight is the basic source of energy which is used in our daily life

Explanation:

sunlight is the main source of energy for the earth. without sum nothing is possible . sunlight is relatable in every systematic flow. like wise in photosynthesis, life cyle,drying food or fruits ,etc. moreover!

what does it mean when an emission line of helium from a galaxy is shifted toward red

A. The galaxy contains a small percent of Hydrogen

B. The Galaxy is moving toward the viewer

C. The galaxy is moving away from the viewer

D. The galaxy contains a large percent of hydrogen

Answers

Answer:

the answer is the galaxy is moving away from the viewer! lemme know if you need the rest of the answers or anymore help

Explanation:

i took the test :)

When an emission line of helium from a galaxy is shifted toward red, it means that the galaxy is moving away from the viewer. Thus, the correct option is C.

What is Galaxy?

The Galaxy may be defined as a tremendous collection of dust, gas, dark matter, and billions of stars and their solar systems, all held together by gravity.

When it is shifted toward red, it describes the displacement of an emission line of helium from a galaxy to longer wavelengths. This alteration is interpreted as a doppler shift.

It depends on the location of any celestial body in a galaxy. The farther from us a star is, the more its light has shifted towards the red end of the visible spectrum.

Therefore, when an emission line of helium from a galaxy is shifted toward red, it means that the galaxy is moving away from the viewer. Thus, the correct option is C.

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Roberto wants to measure the lengths of the sides of a metal cube. Which tool should he use?


Answer: ✔ Ruler


To make a solution, Sian must measure 15.0 mL water. Which tool should she use?


Answer: ✔ graduated cylinder



An experimental procedure calls for 35.9 g sodium chloride and 15.2 g silver nitrate. What tool should be used to measure these substances?


answer: ✔ electronic balance




Mark needs to determine how much the temperature of a solution changes during a chemical reaction. Which tool does he need?


Answer: ✔ thermometer

I was struggling to find the answers for these questions. So decided to put the questions along with the right answers for the people that might need it

feel free to answer if you need the points or if you just want to say something.

this is for Edg 2021

Answers

Answer:

Roberto wants to measure the lengths of the sides of a metal cube. Which tool should he use?

✔ ruler

To make a solution, Sian must measure 15.0 mL water. Which tool should she use?

✔ graduated cylinder

An experimental procedure calls for 35.9 g sodium chloride and 15.2 g silver nitrate. What tool should be used to measure these substances?

✔ electronic balance

Mark needs to determine how much the temperature of a solution changes during a chemical reaction. Which tool does he need?

✔ thermometer

Explanation:

What is it about red that makes bulls so angry?

Answers

Answer:

It isn't the red that gets bulls mad. They are colorblind. It is the movements of the cloth that irritates them!

Explanation:

Bulls are color blind so it doesn’t make them angry

5 puntos
5. Si el color de ojos negros es dominante (A) sobre el color de ojos azul
(a). El fenotipo y el genotipo que tendríamos al cruzar dos personas
heterocigotas es
*
GENOTIPO: 50% Heterocigotas - 25% homocigotas dominantes - 25% homocigotas
recesivas.FENOTIPO: 75% ojos negros - 25% ojos azules
GENOTIPO: 100% Heterocigotas. FENOTIPO: 100% ojos negros.
GENOTIPO: 50% Heterocigotas - 50% homocigota recesivo. FENOTIPO: 100% ojos
negros.
GENOTIPO: 50% Heterocigotas - 50% homocigotas dominantes FENOTIPO: 50% ojos
negros - 50% ojos azules

Answers

Answer:

GENOTIPO: 50% Heterocigotas - 50% homocigota recesivo. FENOTIPO: 100% ojos

Explanation:

No se de la verdad

Fracking uses highly pressurized fluids, such as water mixed with sand and chemicals, to drive open cracks that exist in underground rock. Which
statement best describes an environmental consequence of this process?
• Chemicals added to the liquid can contaminate groundwater.
O Wastewater is contaminated with oil and becomes sludge in landfills.
Water vapor is released into the air, which is considered a greenhouse gas.
Heavy metals are released into surrounding soil, poisoning local vegetation

Answers

The correct answer is that chemicals added to the liquid can contaminate groundwater.

Fracking is a method of drilling fossil energy resources, which requires a lot of water and consumes local water resources. It is pumped with high pressure water, sand and chemicals, causing high pressure to block the porous rock and release gas.  

The water spill itself destroys nature from the drilling site, and may even cause earthquakes, especially due to the pumping of abundant wastewater into porous rock types such as limestone. For example, Oklahoma appears to have become a special earthquake risk area. The biggest impact of water distortion is on groundwater. In Wyoming, USA, the same chemicals found in groundwater have been found in groundwater, and some of them are toxic or carcinogenic.  

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Answer:

Wait so the answer is A?

Explanation:

A cat jumped off a shelf. It has 40 Joules of Mechanical Energy and 16 Joules of Kinetic Energy. What is the Potential Energy? (ENTER THE NUMERICAL VALUE ONLY)

Answers

Answer:

24 Joules

Explanation:

The formula is mechanical energy = kinetic energy + potential energy. So in order to find the potential energy you will need to reverse it.

Mechanical energy- Kinetic energy= Potential energy.

40- 16= 24

Answer: 24 Jolues.

Hope this helps!

What is the rule for making a atom positive/+ion?​

Answers

Answer:

Ions are formed when the number of protons in an atom does not equal the number of electrons. If more protons are present, the ion is positive and is known as a cation; if more electrons are present, the ion is negative and referred to as an anion.

Explanation:

Enzymes are typically fibrous proteins.

True

False

Answers

I believe the answer to this is “False”

Explanation:

Enzymes are typically globular proteins.

Enzymes are mainly globular proteins - protein molecules where the tertiary structure has given the molecule a generally rounded, ball shape (although perhaps a very squashed ball in some cases). The other type of proteins (fibrous proteins) have long thin structures and are found in tissues like muscle and hair.

30. Carnivores are
A. Plant cells
B. Predators
C. Decomposers
D. Meat eaters

Answers

Answer:

D. meat eaters

that is the correct answer

please choose brainliest ❤️ to my answer

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PLEASE HELP WILL MARK BRAINLIEST Simplify the expression.12233(3)322329 Cu 3: Nu phng php ha hc nhn bit cc dung dch khng mu sau: (a) HCI, NaOH, H2SO,, NaCl. (b) HNO3. KOH, BaCl. Ca(OH)2. Ba(NO3)2 (c) MgCl2, KCl, CuCl2, FeCl3, FeCl2 (ch dng mt thuc th). (d) Na2CO3, BaCl2, NaNO3 (ch dng mt thuc th) Add -13 + 5. 8 -8 -18 18 What is the solution to the system of equations below?4x-2y=10y=-2x-5show your work! :) I just need some help in math. This problem specifically After your buddy checks to see that your air is turned all the way on: A. You are ready to enter. B. Reach back and double check it yourself. C. Take several deep breaths from your regulator while watching your SPG for changes in pressure. D. None of the above. Sorry for small handwriting TRUE or FALSE?Both horror and comedy can use dramatic irony because both horror and comedyuse what the audience knows to create either suspense or humor.True Or False HELP PLEASE!! VERY MUCH APPRECIATED!!find an equation for the graph of the set of points whose distances from (6,0) and (-6,0) always add up to 20 (ellipse equation) sound travels to your eardrum by way of the------? Which fraction is equal to 0.98 Compare 7/2 and 10/8 PLEASE ANSWER QUICK!What does the 1/2 indicate in this equation?y=1/2x+1the y-interceptthe x-interceptthe slopeI don't know. Write a research about the 5 major of computer applications Does Brainly have a glitch I wrote a question for 25 points for someone to answer and usually someone just comes on the spot to answer but now not a lot of people answer questions May someone help me with the answer to this question Ive been stuck on it find the distance between each pair of points-6 -5 2 0 The events listed above will probably increase your driving skills true or false Which bio molecule is not found in cell membrane The diameter of a table tennis ball is millimeters. What is the approximate surface area of a table tennis ball?