what would be the estimated maximal heart rate for a 40-year-old?

Answers

Answer 1

Answer:

180 beats per minute.

Explanation:

Hope This Helps!


Related Questions

questions.
Questions
1 a Name the microorganism which causes the disease smallpox.

Answers

Answer: Variola Virus

Explanation:

Answer options are:

A- DECOMPOSITION
B- HUMAN EMISSIONS
C- PLANT RESPIRATION
D- PHOTOSYNTHESIS

Answers

B- Human Emissions is the correct answer

please please help me i will give brainliest

What are the products of the light reactions used for during in the dark reactions of photosynthesis?

Answers

It produces ATP and NADPH

Describe how the structure of an atom determines it's function. How is the structure of
an atom related to the properties A displays when bonding or reacting with other
atomslelements. Provide a simple example,

Answers

Answer:

Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain electrons (negatively charged).

Explanation:

Hope This Helps!

8. I contain pigments to capture light energy.
O Chloroplast
O Mitochondria
O I Both chloroplasts and mitochondria

Answers

Answer:

a/1 chloroplast

Explanation:

chloroplasts hold green pigment

nombre de el tejido conjuntivo que se encarga de recibir el oxígeno​

Answers

English mo Po Kase Hindi ko maintindihan

I WILL GIVE 50 BRAINLY POINTS AND BRAINLIEST TO BEST ANSWER!!!


Choose a scientist to research and write about from this list:


John Dalton J. J. Thomson


Marie Curie Ernest


Rutherford Henry Moseley


Niels Bohr Werner


Heisenberg Erwin Schrödinger


James Chadwick


Which scientist will you write about? Explain why you made that choice.



pt 2


When writing a scientific paper, look for the most credible sources. Science doesn’t show bias, but we humans tend to show bias. There are sites and articles that provide facts without proper scientific evidence. Avoid using information from such sites. You must be able to identify reliable sites so the data in your paper is credible.



Use sources that end in .gov (government sites), such as OSTI.gov. They are reliable sources. You can also use sites ending in .edu. They can be deemed trustworthy, but som

Answers

Even tho it’s only five points I’ll still answer

I’d choose James Chadwick Bc it sounds like they will have the most information to research on.

Good luck with that.

Answer:

I'm going to write about John Dalton because it seems interesting that he observed that water evaporates and becomes a gas that mixes with air.

Explanation:

hope this helps :)

Demonstration 4: Universal Solvent
Materials needed:
-1 cup of water
-1 tsp of Salt, sugar or kool aid
Most of us have mixed water with salt, sugar or kool aid before. If you have not, give it
a try.
Questions:
1. What is the solute(s) in this experiment?
What is the solvent in this experiment?
This picture of a water molecule is drawn incorrectly. How could it be corrected?

Answers

Answer:

Solutes in this experiment are salt, sugar, or kool-aid

The solvent in this experiment is the water.

importance of agriculture to the nation​

Answers

It provides food,clothing,and shelter.

The importance of agriculture is that if there will be no national resources in a country than the people of the country will migrate because lack of agriculture

I hope this will help you

when storing fruits and vegetables in her apartment, what steps can julie take to minimize nutrient losses? check all that apply.

Answers

Nutrient loss is the reduction or elimination of the nutrients in food. Nutrients are very important in the development of cells in the body and also giving energy and vitality to the bones.

Please note that your question is incomplete, so i am giving you a general overview.

Some of the factors that leads to nutrient loss in food includes:

Overcooking (exposure to high level of heat)FreezingDrying, etc.

Therefore, to minimise nutrient loss, it is vital that food is well preserved and is finished immediately, to reduce or totally eliminate the need to freeze, overcook or reheat food.

Read more here:

https://brainly.com/question/19596918

What is the best definition of excretion?
The elimination of undigested food.
Crying
The process of eliminating metabolic wastes.
Drooling

Answers

The process of eliminating metabolic waste!

C) The process of eliminating metabolic wastes

What is the most venomous snake in the world? Please help ASAP! Help would be appreciated. I will give Brainliest!
Note: it's my homework! :)

Answers

The most venomous snake in the world is Inland Taipan.

Answer: Oxyuranus microlepidotus, also called the fierce snake

Explanation: The snake with the most deadly venom.

NOT MY WORK I FOUND IT ON https://www.britannica.com/list/9-of-the-worlds-deadliest-snakes

A closed system:

A. exchanges matter
and energy with other
systems.
B. exchanges
information and energy
with other systems.
C. is the most common
type in nature.
D. exchanges no matter
with other systems.

Answers

Answer:

D. exchanges no matter with other systems.

Explanation:

When you think of closed, think of something like a closed circuit. Nothing is effecting it from the outside and is not that common in nature. Most biological organisms are open systems such as us humans.

How do you think caffeine will affect the heart rate of humans

Answers

Answer:

Caffeine stimulates the heart's contractions via acting on enzymes in the heart. Caffeine can help natural hormones operate on the heart to release norepinephrine, which has a stimulating impact comparable to adrenaline.

What are things that sound waves can travel through?

Answers

Answer:

Sound waves are longitudinal waves. They need a medium to travel through. They cause particles of the medium to vibrate parallel to the direction of wave travel. The vibrations can travel through Solids, Liquids or Gases.

Explanation:

Hope it helps

identify the small facial bones found in the medial wall of the orbit.

Answers

Answer:

Lacrimal

Explanation:

Hair samples can provide information on all of the following EXCEPT.....

a
Age
b
Gender (sex)
c
Race
d
Hair samples can provide information on all of these.

Answers

Answer:

the answer should be A) Age

4. Which statement best expresses a basic scientific
assumption?
A Interpretation of experimental results has
provided explanations for all natural phenomena.
B) Ifa conclusion is valid, similar investigations by
other scientists should result in the same
conclusion.
C) For any conclusion to be valid, the design of the
experiment requires that only two groups be
compared
D) After a scientist formulates a conclusion based
on an experiment, no further investigation is
necessary
3

Answers

Answer:

Choose B) B) If conclusion is valid, similar investigations by

other scientists should result in the same

conclusion.

Explanation:

Which fact from "Solar Conjunction: When the Sun Gets in the Way" would be LEAST important to include in a summary of the blog post?

- The Solar Conjunction period starts around April 4, 2013, and lasts until May 1, 2013.

- During this time, science observations are suspended.

- Without accurate measurements, the Mars Reconnaissance spacecraft cannot perform precise targeted science observations.

✅One Mars year is about 1.9 Earth years.

Answers

Answer: One Mars year is about 1.9 Earth years

Explanation: One Mars year will take around 687 Earth days.

Answer:

d

Explanation:

got it right on the test

15 POINTS!!!! At a molecular level, does plasma have more or less energy than other states of matter?

Answers

Answer: Hello!

Plasma is more energetic than other states of matter.

Explaination:

Mark me brainest please Hope I helped! Hope you make an 100%

-Anna♥

List the features of the gaseous exchange surface in humans.​

Answers

they give the lungs a really big surface area
they have moist, thin walls (just one cell thick)
they have a lot of tiny blood vessels called capillaries

Answer:  

they give the lungs a really big surface area.

they have moist, thin walls (just one cell thick)

they have a lot of tiny blood vessels called capillaries.

Hopes this helps :D

identify the general location of the zygomatic arch.

Answers

Answer:

Identify the general location of the zygomatic arch. cheek. The zygomatic arch is a bony bridge formed between the zygomatic and temporal bones. ... The temporal process of the zygomatic bone and the zygomatic process of the temporal bone fuse to form the zygomatic arch.

Explanation:

possible

answer

Give an example of a 1) solid, 2) liquid and 3 gas.

Answers

1) Rock

2.) Acid

3.) Helium

I hope this is what you wanted

1. Brick

2. Water

3. Lava

in what situation can a harmful deletion in a chromosome persist in a population?

Answers

Answer:

If the homologous chromosome lacks the deletion

Cell walls are only found in animal cells.

Answers

Answer:

False

Explanation:

Animal cells do not have a cell wall

Answer:

i think so yes beacuse i remember it that i read in in science

Cereal crops - eg simple question free

Answers

Answer:

Important cereals are wheat, rice, maize, oat, barley, rye, millet and sorghum.

Answer:

Explanation:

some cereals are wheat, rice, maize, oat, barley, rye, millet and sorghum.

What has very thin walls to allow the nutrients and gasses to be exchanged between the blood and cells?
ОООО
Arterioles
Venules
Veins
Capillaries

Answers

Answer:

Arterioles

Explanation:

Arterioles are considered as the primary resistance vessels as they distribute blood flow into capillary beds. Arterioles provide approximately 80% of the total resistance to blood flow through the body.

where are muscle cells found?
are short explanation please.​

Answers

Muscle cells are found on the wall of the heart and blood vessels, visceral organs and remains attached to bone of the skeleton by tendons.

Smooth muscle fibers are located in walls of hollow visceral organs, except the heart, appear spindle-shaped, and are also under involuntary control. Skeletal muscle fibers occur in muscles which are attached to the skeleton. They are striated in appearance and are under voluntary control.

help help help help help

Answers

Answer:

D. There is a warm front coming from the south.

In spring, sugar solution rises quickly up through the phloem in plant stems . Give a reason for this

Answers

Answer:

Because phloem transports minerals and other solute. particles from lower parts to the stem in bidirectional manner. That is why in spring sugar solution rises quickly through phloem in plant stem

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What role did Anne Hutchinson play in the colony of Rhode Island?A. She led the effort to ban enslavement in the colony.B. She became governor and allowed the freedom of religion.C. She started her own church and increased the status of women.D. She helped found the town of Portsmouth after being exiled from Massachusetts.Thanks. Someone help me with this please James has not seen his family for s_____ months. What is the distance between the points (2, 1) and (14, 6) on a coordinateplane? The probability that a certain make of car will need repairs in the first eight months is 0.6. A dealer sells three such cars. What is the probability that at least one of them will require repairs in the first eight months? Round your final answer to four decimal places. How did the The Siege of Boston cause the American Revolution? All the following statements can be concluded from the law of conservation of matter except?A. We cant throw everything away because there is no awayB. Eventually we will rent out of matter if we keep consuming it.C. There will always be pollution of some sort.D. Everything must go somewhere. Write this number inscientific notation.19,800,0001.98x10[?] I need help on the last step What determines the climate of a location? Altitude and latitude Precipitation Bodies of water All of the above What is part of an effective introduction? A. a piece of evidence to support the claim B. an interesting quote or fact about the topic C. a reason the reader should agree with the writer D. an explanation of how the reader can help SOMEONE PLEASE I NEED HELL AND I WANT TO GO TO SLEEP, but theres more than one answer btw i need answer asap pls help HELP ASAP!!!!!!!!!! What is the equation of the line that passes through the point (- 3, 1) and has a slope of 2/3? Anti-imperialist efforts in the late 1800s led the US to focus its foreign policy on opening and closing of the heart valves is caused by they are constructing a house in passive voice in all 12 tenses please An electrician charges a set fee for every house call and then charges an hourly rate depending on how long the job takesThe total cost of the electrician's services can be determined using the equation C = 65t + 85 , where t is the number of hours the electrician spends at the house working . What is the slope of the equation and what is its interpretation in the context of the problem ? Supporters of laissez-faire generally favorO A) free tradeO B) government protectionsO-C) high pricesOD) tariffs I need the answer...... Find x8x + 149x + 2A) 8C) 11B) 7D) 12