Explain the effect of activity on a heart rate​

Answers

Answer 1

Answer: Exercise causes the heart to pump blood into the circulation more efficiently as a result of more forceful and efficient myocardial contractions, increased perfusion of tissues and organs with blood, and increased oxygen delivery. Aerobic exercise trains the heart to become more efficient.

Explanation:

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Answer 2

Answer:

Pretty much the more activity you do, or the more intense it is, the faster your heartrate will be. Your heart needs blood, and when you're exercising the blood is pumping through your body faster.

Explanation:


Related Questions

critical thinking scientist can determine the age of a substance using a method that compares the amount of different forms of carbon atoms present in a substance. is this method more useful for organic substances or organic substances explain

Answers

Answer:

organic substances

Explanation:


A group of students investigated how the salt content of water affects a plant that
lives in an aquatic ecosystem. On one slide, the students placed a piece of a leaf of
an aquatic plant and then added a drop of tap water. On a second slide, they placed
a piece of the same leaf and then added a drop of 10% salt solution. The students
observed both leaf pieces with a microscope. They repeated the process three times.
The table below summarizes their findings.
Observations of Aquatic Plant Cells
Condition Cell Membrane Vacuole Chloroplasts
Slide 1: Leaf in tap
water
Just inside cell
wall
Large, fills most
of cell
Near edges of cell,
around vacuole
Slide 2: Leaf in
10% salt solution
Pulled away from
cell wall
Invisible
Clumped in center
of cell
Which statement is the BEST explanation for these findings?
a The 10% salt solution was hypertonic; the tap water was isotonic.
b The 10% salt solution was hypotonic; the tap water was hypertonic.
The 10% salt solution was isotonic; the tap water was hypertonic.
O The 10% salt solution was isotonic; the tap water was hypotonic.

Answers

The answer to the question above is a cell.

Coral reefs are plants. True or false

Answers

Answer:

that is false coral are animals because corals don't make their own food but plants do. their actually made up of thousands of tiny animals called polyps.

Explanation:

what color eye is this?

Answers

Answer:

haze/green

Explanation:

If thats ur eye it is SO pretty

lol mine r brown

Whats The Answer Giving Brainliest To first Correct AnSwEr:D
...

Answers

Answer:

I already answered another question exactly like this from you, but here's the answer again: A: Ice Crystals.

Explanation:

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

1. The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as (a) _________ for the carbon cycle.

carbon dioxide

carbon sink

carbon source

carbon flux

2. Bacteria add carbon to the carbon cycle by

being consumed by larger organisms, such as plankton.


decomposing dead organisms.


exchanging carbon dioxide and oxygen gases.


performing photosynthesis.

3. Breathing is related to the carbon cycle because(1 point)

only animals release carbon dioxide as a waste product.

it produces energy.

organisms exhale carbon dioxide.

it converts glucose and oxygen to water and carbon dioxide.

4. Which of the following is a carbon sink in the desert?(1 point)

cacti

snakes

plankton

insects

5. Where does cellular respiration occur?(1 point)

bacteria

lungs

chlorophyll

mitochondria

Answers

The ocean stores carbon from its interactions with the atmosphere, so the ocean serves as carbon sink for the carbon cycle.

Bacteria add carbon to the carbon cycle by decomposing dead organisms

Breathing is related to the carbon cycle because organisms exhale carbon dioxide.

Cacti is a carbon sink in the desert. This is because it is  a plant and manufactures food(carbon compounds) through photosynthesis.

Mitochondria is the organelle where cellular respiration occur. This is why it is regarded as the power house of the cell.

Read more about Carbon cycle here https://brainly.com/question/24293689

Answer:

it is what the coments

Explanation:

Write a paragraph explaining the function of a cell wall and cell membrane and why plants have cell walls and animal cells do not.



plssssssssssssssssssssssss a good paragraph with good vocabulary

Answers

A cell wall is a structural layer surrounding some types of cells, just outside the cell membrane. It can be tough, flexible, and sometimes rigid. It provides the cell with both structural support and protection, and also acts as a filtering mechanism.[1] Cell walls are present in most prokaryotes (except mollicute bacteria), in algae, fungi and eukaryotes including plants but are absent in animals. A major function is to act as pressure vessels, preventing over-expansion of the cell when water enters.

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Just btw

what is heat?write with its example

Answers

Answer: I look it up bc ihnc ...Heat is the form of energy that is transferred between systems or objects with different temperatures (flowing from the high-temperature system to the low-temperature system). Also referred to as heat energy or thermal energy. Heat is typically measured in Btu, calories or joules..

Explanation:

Answer:

i took a screenshot of the answer :)

If humans accidentally release an herbicide, a chemical that kills plants, into the ponds, what impact would this have on the amounts of carbon the ponds could remove from the surrounding environment?
A.The amounts of carbon that the ponds could remove would decrease because there are less plants to cycle matter.
B. The amounts of carbon that the ponds could remove would increase because there is more area to cycle matter.
C. The amounts of carbon that the ponds could remove would increase because the plants decompose underwater.
D. The amounts of carbon that the ponds could remove would decrease because the plants retain strong roots.

Answers

i think it’s 1. please tell me if i’m wrong.

What is the relationship between respiration and cellular respiration?​

Answers

Answer:

Through a chemical process called cellular respiration. As you know, respiration is the process of breathing. Cellular respiration is not the same thing as breathing, but they are closely related. When you breathe in, you take in the oxygen your cells need for cellular respiration.

Explanation:

Searched It up

What is the relationship between respiration and cellular respiration?
What is the difference between a partial blockage and an obstruction blockage?
What is the first aid for choking?​

Answers

respiration is when you breath and cellular respiration involves taking the cells from when you breathe and turning it into chemical energy.

partial blockage can be cause by cancer within the bowel area or inflammation within the bowel area. obstruction blockage is caused by tissue compressed in the gut.

for first aid, you turn the individual on their back and deliver 5 back slaps between their shoulder blades, then do 5 chest thrusts.

Which best explains a way of protecting water for human consumption?

Answers

Is there options to choose from or?

what two things are made up during photosynthesis?

Answers

Answer:

Oxygen, Carbon dioxide

Explanation:

Its a fact

The other answer is incorrect, the products of photosynthesis are oxygen and glucose (O2/C6H12O6)Carbon dioxide is the reactant along with water and light.

Which of the following types of particles found in an atom has no charge?

Answers

Answer:

neutron has no charge because it is equal in mass

The white blood cells can be compared to the army and soldiers of our country. Explain the reason in about 3-4 lines.

Answers

Answer:

Please Mark as Brainliest

Explanation:

The white blood cells provide immunity to our body. They help in fighting against diseases, infections, allergies, and foreign particles. These cells keep our bodies safe and healthy, much like the soldiers of a nation.

-find a foreign target
-capture them
-kill them
-look out for signs of them returning

What renewable energy source do you think would be best to develop first.

There is no right or wrong answer
In at least 3 sentences, please.

Answers

I believe solar power is a renewable energy source that should develop first.  This is because as of right now, scientists know that they aren't as efficient as they could be. These panels are currently growing cheaper as production capabilities increases but the panels are going to rarely be able to produce efficiently due to weather conditions. If more money gets added to the research and development of this technology, these panels will become more efficient, thus making more clean energy.

The image above shows an amino acid attached to which type of molecule?

Answers

tRNA because on one end it binds to a specific amino acid and the other end has anticodon that will bind to an mRNA codon

Which answer describes "budding"?

simple cell division
spore develops on outer membrane like a bump
colonies of cells stick together and grow
cytoplasm and nucleic material move into a lump on the cell wall

Answers

Answer:

simple cell division, I think so

The first one is correct , hope this helps :)

‼️PLEASE HELP‼️
what would happen if your body failed to return to normal after exercising? explain.

Answers

Answer: if your question has to do with homeostasis here you go! i hope this helps:)

In order for a body to work optimally, it must operate in an environment of stability called homeostasis. When the body experiences stress—for example, from exercise or extreme temperatures—it can maintain a stable blood pressure and constant body temperature in part by dialing the heart rate up or down.

The loss of too much blood may lead to circulatory shock, a life-threatening condition in which the circulatory system is unable to maintain blood flow to adequately supply sufficient oxygen and other nutrients to the tissues to maintain cellular metabolism.

PLEASE ANSWER————-Apply: Where in the Gizmo (and in real life) do the following energy conversions occur?
26.
Chemical to thermal to electrical current:
27
Gravitational potential to kinetic to electrical
current:
28.
Electrical to sound, radiant and thermal energy
29.
Nuclear to thermal to electrical current

Answers

Answer:

I'm not sure but I think the answer is 28

Explination:

Electrical energy is a form of energy resulting from the flow of electric charge whereas Gizmos are in microwave and etc which includes electrical,sound,radiant,and thermal energy.

What is the energy change taking place when plants make food in the presence of sunlight?
Potential energy is transformed into kinetic energy.
Kinetic energy is transformed into potential energy.
Chemical energy is transformed into radiant energy.
Radiant energy is transformed into chemical energy.

Answers

Answer:

radiant energy is transformed into chemical energy

Explanation:

sunlight is ntg but radiation (UV), Iit falls on leafs surface and with the help of photosynthesis leaf converts radiation to chemical energy

Answer:

The answer would be D

Explanation:

Radiant energy is transformed into chemical energy

hi i need help on this question real fast please help? 3 structures of water roots?

Answers

Answer:

Taproot. A root system which contains one large, primary vertical root that spawns many smaller horizontal root structures. ...

Fibrous. Fibrous root systems consist of many fine hairlike roots that form a thick mat below the surface. ...

Rhizomes. ...

Stolons. ...

Adventitious.

Whats The Answer Giving Brainliest To first Correct AnSwEr:D

Answers

Answer:

the answer is A: Ice crystals

Explanation:

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

PLZ HELP!!!!!!!!!!!


Part C Colony collapse disorder is a natural phenomenon in which the majority of worker honeybees-bees that collect food for the hive-die at the same time. If several hives in a region experience this phenomenon, how could it affect the life cycle of flowering plants in the region?​

Answers

Answer:

b part

Explanation:

Answer:

It would affect the plants to die around it because there is no bees pollinating them.

Explanation:

Which statement best describes the purpose of Earth's spheres?

They work together as open systems to cycle matter through ecosystems.
They work independently as closed systems to cycle matter through ecosystems.
They work together as open systems to move matter to living and nonliving parts of Earth.
They work independently as closed systems to move nutrients to living and nonliving parts of Earth.

Answers

Answer:

and they work together to drive the processes of the planet.

Explanation:

Earth has four 'spheres,' called the geosphere, hydrosphere, biosphere and atmosphere. These spheres each have unique properties and features, but they are not isolated on Earth, and they work together to drive the processes of the planet.

They work together as open systems to cycle matter through ecosystems. This statement best describes the purpose of Earth's spheres.

What are earths spheres?Lithosphere encompasses the entire solid land of the planet's crust, as well as the semi-solid land beneath it and even the molten core.

Hydrosphere is made up of all of the planet's water, which comes in solid, liquid, and gaseous forms. Water comes down to the Earth's surface as precipitation from the atmosphere, rivers and streams along the surface, and groundwater beneath the surface. The majority of the world's freshwater, on the other hand, is frozen.

   

Biosphere is made up of all the living things on the earth. This sphere contains all of the Earth's bacteria, plants, and animals. Living beings establish ecological communities in the biosphere based on their physical surroundings. Biomes are the names given to these types of communities.Deserts, grasslands, and tropical rainforests are just a few of the biomes found inside the biosphere.

Atmosphere is made up of all of the air in the Earth's system.The biosphere's organisms are shielded from the sun's UV radiation by the upper atmosphere. It absorbs and emits heat as well. Weather occurs in this sphere as well.

These spheres interact via affecting one another, as well as through biogeochemical cycles and other natural phenomena that each of these spheres influences and causes.

learn more about Earth's spheres here:

https://brainly.com/question/825370

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( ENVIRONMENTAL SCIENCE DUE TODAY)

Some people argue that because Earth's resources are ultimately limited, nonstop economic growth is
A. not a problem
B. inevitable.
C. not sustainable.
D. highly desirable.

Answers

Answer:

Highly Desirable. D

Explanation:

Hope this is correct. Good luck.

What
factors can be used to identify
prokaryotes?​

Answers

Answer:

Prokaryotes are highly distinguished from Eukaryotes, mainly on the basis of their nucleus type. As the word itself suggest that Pro means Primitive and Karyon means Nucleus, while Eu means Specialized and Karyon means Nucleus. Hence, Eukaryotes are more equipped than Prokaryotes. Prokaryotes are mainly found between  1-10 µ and Eukaryotes between 5-100 µ. Prokaryotes mainly have a poorly defined nuclear region with only nucleic acids called a Nucleoid and lack a nuclear membrane too. On the contrary, Eukaryotes have a well defined nucleus with a clear nuclear membrane. Also, The being primitive, prokaryotes have one strand of chromosomes while Eukaryotes have many (46). Prokaryotes also lack a lot of cell organalls. The ribosomes in prokaryotes and eukaryotes are 70's and 80's respectively. Also, photosynthetic prokaryotes have membranous vesicles for synthesis food, unlike Eukaryotic Plants that perform it with Chlorophyll.

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The characteristics of two layers of Earth’s crust are listed. Layer A: Consists of the lithosphere Layer B: All living things live on this layer Which statement is true?

Layer A is the crust and Layer B is the mantle.
Layer A is the mantle and Layer B is the crust.
Layer A is the outer core and Layer B is the inner core.
Layer A is the inner core and Layer B is the outer core.

Answers

Answer:

layer a

Explanation:

Layer A is the mantle and Layer B is the crust.

What best explains the role of energy in cellular respiration

Answers

Answer:

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

Explanation:

write a five sentence paragrgh explaining the cell cycle

Answers

Answer:

The cell cycle is a cycle of stages that cells pass through to allow them to divide and produce new cells. It is sometimes referred to as the “cell division cycle” for that reason.

New cells are born through the division of their “parent” cell, producing two “daughter” cells from one single “parent” cell.

Daughter cells start life small, containing only half of the parent cell’s cytoplasm and only one copy of the DNA that is the cell’s “blueprint” or “source code” for survival. In order to divide and produce “daughter cells” of their own, the newborn cells must grow and produce more copies of vital cellular machinery – including their DNA.

The two main parts of the cell cycle are mitosis and interphase.

Mitosis is the phase of cell division, during which a “parent cell” divides to create two “daughter cells.”

The longest part of the cell cycle is called “interphase” – the phase of growth and DNA replication between mitotic cell divisions.

Both mitosis and interphase are divided into smaller sub-phases which need to be executed in order for cell division, growth, and development to proceed smoothly. Here we will focus on interphase, as the phases of mitosis have been covered in our “Mitosis” article.

Interphase consists of at least three distinct stages during which the cell grows, produces new organelles, replicates its DNA, and finally divides.

Explanation:

from online, rephrase this use as reference

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