The normal pulse rate is ___________. *
1. 70 to 90 per minute
2. 70 to 80 per minute
3. 40 to 70 per minute
4. 70 to 100 per minute
Class 7

Answers

Answer 1
A normal pulse rate is 70 to 100 per minute
Answer 2

C. 70 to 100 per minute


Related Questions

What is a sand cats primary diet?

Answers

Answer and explanation:

Sand cats eat primarily small rodents, occasionally hares, birds, spiders, insects and reptiles. They are fearless snake hunters—their prey can include venomous vipers and other snakes. Living in a relatively desolate habitat, sand cats are opportunistic feeders out of necessity.

What did scientists believe was contributing to the depletion of the ozone layer and why?

Answers

The ozone is a layer in the stratosphere which protects the earth from ultraviolet light. The molecule within the ozone are being broken apart due to fossil fuel emissions.

CFCs and other halogen-source chemicals in the stratosphere were discovered to deplete the ozone layer.

What is ozone layer depletion?

Ozone depletion is the steady lowering of the Earth's ozone layer in the high atmosphere, which is produced by the discharge of chemical compounds from industry and other human activities that contain gaseous chlorine or bromine.

The ozone layer acts as a buffer against the sun's potentially dangerous ultraviolet rays. The destruction of the ozone layer puts humans in direct contact with dangerous ultraviolet rays, which can lead to a variety of health problems including cancer, cataracts, skin illnesses, and a weakened immune system.

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Which stage of the cell cycle happens directly after cytokinesis?
A
mitosis
B
M phase
C
anaphase
D
interphase

Answers

The answer is D interphase

The cell cycle phase that occurs immediately following cytokinesis is the interphase, which is in Option D because the interphase consists of the G1, S, and G2 and is constitutively called the preparatory phase.

What is the cell cycle's importance?

The cell cycle consists of the interphase and the division phase, and in the interphase, the cell spends most of the time preparing itself for the cell division and consists of the G1, S, and G2 phases. Following the interphase, the cell enters the division phase, which is mitosis or meiosis, and divides, with the daughter cells potentially entering the cell cycle via the interphase.

Hence, the cell cycle phase that occurs immediately following cytokinesis is the interphase, which is in Option D because the interphase consists of the G1, S, and G2 and is constitutively called the preparatory phase.

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Artificial selection is also known as survival of the fittest
true or false?

Answers

This is true, good luck ma boi

Explain why lamarckism is currently not a widely accepted theory​

Answers

Answer:

Its not really taught in schools that much.

Explanation:

Lamarck's theory cannot account for all the observations made about life on Earth. For instance, his theory implies that all organisms would gradually become complex, and simple organisms disappear.

Lamarck’s theory of evolution, also called as theory of inheritance of acquired characters was rejected since he suggested that the acquired character which an organisms gain through its life experiences are transferred to its next generation, which is not possible since acquired characters does not bring any change to an individual’s set of genes.

what is the result of cell that undergo division by mitosis

Answers

Answer:

mitosis results in two identical daughter cells ..hope this helped!

Explanation: a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells.

How does mercury change from something benign to something harmful?

Answers

Answer:

Burning coal releases mercury into the atmosphere. It falls into sediments and is converted into methyl mercury by bacteria

Explanation:

How have protozoa typically been classified?

by their type of reproduction

by their symmetry

by their mode of locomotion

by their mode of nutrition

Answers

Answer:

by their mode of locomotion

Explanation:

I'm not too sure but.. :)

True or false Solutions of equal solute concentration are isotonic.

Answers

Answer:

Explanation:

now you have two mixtures of different solute concentrations. In comparing two solutions of unequal solute concentration, the solution with the higher solute concentration is hypertonic, and the solution with the lower solute concentration is hypotonic. Solutions of equal solute concentration are isotonic.

Which two processes are responsible for the formation of fog?

Answers

Answer:

Explanation:

evaporation

Which jobs does an animal's skeletal system do?

Answers

Answer:

"The Skeletal system has three very important jobs: Support, protection, and movement. Just think, if we did not have a skeletal system for support we would be just like a blob of Jell-O. The bones also protect many organs, and also the brain."

Explanation:

The rate limiting reaction of aerobic respiration involves the phosphorylation of __________ by the enzyme _______ . The rate at which this enzyme makes product is ___________when ATP levels rise because the molecule ___________binds to an _________ site on the enzyme and acts as a(n)_________ . When ATP levels fall ________ binds to ________of ____________. This interaction leads to an increase of cellular ___________ , so that this is a n example of a ___________ feedback loop.

Answers

Answer:

Explanation:

The rate limiting reaction of aerobic respiration involves the phosphorylation of fructose phosphate by the enzyme phosphofructokinase. The rate at which this enzyme makes product is [increased, decreased] when ATP levels rise because the molecule ATP binds to an allosteric site on the enzyme and acts as a direct inhibitor. When ATP levels fall AMP binds to the allosteric site of phosphofructokinase. This interaction leads to an increase of cellular ATP, so that this is an example of a negative feedback loop.

The rate limiting reaction of aerobic respiration involves the phosphorylation of fructose phosphate by the enzyme phosphofructokinase. The rate at which this enzyme makes product is decreased when adenosine triphosphate (ATP) levels rise because the molecule adenosine triphosphate (ATP) binds to an allosteric site on the enzyme and acts as a direct inhibitor. When adenosine triphosphate (ATP) levels fall, AMP binds to the allosteric site of phosphofructokinase. This interaction leads to an increase of cellular adenosine triphosphate (ATP), so that this is an example of a negative feedback loop.

What is an aerobic respiration?

An aerobic respiration can be defined as a chemical and biological process that involves the use of oxygen in living organisms to make energy (ATP) from carbohydrates (sugars) during cellular respiration.

This ultimately implies that, an aerobic respiration can take place or occur in the presence of oxygen.

What is an enzyme?

An enzyme can be defined as a biological catalyst that typically speeds up (accelerates) the rate of a chemical reaction, especially by lowering the activation energy of its chemical reactants.

Factors that affects an enzyme

There are four (4) main factors that affect the actions and the rate of an enzyme and these include the following:

The logarithmic concentration of hydrogen (pH).Temperature.Cofactors.Allosteric inhibitors.

Read more on here:

What are the signs and symptoms of sickle cell anemia?

Answers

symptoms

Explanation:

swelling

frequent infections

delayed growth or puberty

vision problems

sickle cells break apart easily and die leaving you with to few red blood cells

Symptoms
Anemia. Sickle cells break apart easily and die, leaving you with too few red blood cells. ...
Episodes of pain. Periodic episodes of pain, called pain crises, are a major symptom of sickle cell anemia. ...
Swelling of hands and feet. ...
Frequent infections. ...
Delayed growth or puberty. ...
Vision problems.

4. Take a beaker (jar or jug) with some water and put some drops of red or blue
ink in it. Take a tender twig of any flowery plant with leaves and flowers, preferably
white flowers, and put it in the beaker for 6 to 8 hours. What do you observe? For
further examination cut across its stem and look for the presence of colored water.
Explain your observations.​

Answers

Answer:

Blue Ink patches are observed on the leaves of the plant. Also, on cutting across the stem of the plant, the red color of the solution is found along the length of the stem.

The above observation shows that the stem of the plant conducts water through its length to the leaves of the plant.

Explanation:

The leaves of plant obtain water and minerals from the soil through the roots of the plant. The water is conducted by the stem of the plant from the roots to the leaves of the plant where they are needed for photosynthesis as well as for cooling the plant. The xylem tissue in plants is responsible for conducting water to the leaves of the plant from the roots of the plant through the stem.

The conduction of water from the roots to the leaves of the plant is maintained by capillary action as well as by transpiration pull. Transpiration pull refers to the pull of water by the transpiration action taking place in the leaves of the pant, whereby water evaporates from the leaves of the plant through the opening in the leaf of the plant.

When the blue ink is added to the water, the colored water is conducted through the stem of the plant to the leaves. On getting to the leaves, the water molecules evaporate leaving behind the colored patches fond on the leaves. When the stem of the plant is cut, the blue color is seen along its length showing that the colored water was conducted through it.

do you guys know any good songs or good ways to remember all the bones in the body and where they are???? i have a test tomorrow for this and i cant remember any of it​

Answers

Answer:

The human bones song  by jam campus or how to learn the human bones video

Explanation:

What do plants produce during photosynthesis? F oxygen G light H magnetic energy J carbon dioxide

Answers

Answer:

yes

Explanation:

Which of the following is false about DNA?

A. DNA is made up of units called nucleotides.

B. Any base can pair to any other base.

C. DNA contains the instructions to make proteins.

D. DNA is found in a cell's nucleus.

Answers

Answer:

b. any base pair can pair to any other base

Explanation:

Any base pair cannot pair with any other base, Adenine pairs with thymine and cytosine pairs with guanine.  

• The hereditary material in humans and almost all of the living species is known as DNA or deoxyribonucleic acid.  

• The majority of the DNA is present within the nucleus of the cell.

• DNA comprises the instructions to make proteins that helps to perform essential functions within the body of an organism.  

• Within the DNA, information is stored in the form of a code formed of four chemical bases, that is, Adenine, guanine, cytosine, and thymine.  

• The base pairs present within the DNA pairs up with each other, that is, adenine pairs with thymine only, and guanine pairs with cytosine, no other kind of pairing is found within the DNA. Each base of also attached with a molecule of phosphate  and sugar.  

• Together, a phosphate, base, and sugar are known as a nucleotide.  

Thus, statement B is incorrect.

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Which would most likely contribute to better digestion and respiration?

Answers

Answer: Energy is released when bonds in the food molecules are broken during digestion.

Explanation:



Which of the following will cause a decrease in ADH production?
(A) dehydration
(B) an increase in osmotic pressure of blood
(C) drinking water
(D) abnormally low blood pressure

Answers

C

drinking water may not be enough to keep your symptoms under control.

What gas in the atmosphere helps to protect us from that radiation

Answers

Answer:

ozone

Explanation:

All living organisms on the earth are protected from the harmful radiation coming from the sun by the ozone gas present in the stratosphere. Ozone gas is formed by the action of sunlight only oxygen of the air in the atmosphere.

Answer:

ozone gas

Explanation:

So meiosis produces egg or sperm

Answers

the answer is eggs
it produces eggs

Answer:

Your answer is correct, it is eggs

Explanation:

In meiosis in females is called oogenesis while in males it is called spermatogenesis so it does produce a little bit of both because it needs to produce the chromosomes for the offspring half male and half female. It also produces 4 gamete cells and around that time can form the offspring which then can form whatever reproductive organ either it's going to be a girl or a boy. But in meiosis, it mostly produces the eggs because the sperm fertilizes the egg hence the whole Meiosis I and II processes.

Hope this helped :)

Question 4
If you have a cell that has a higher concentration of water inside the cell than
outside the cell, which direction will the water move?

1.Outside
2.Neither (I already tried this one it’s incorrect)
3.Inside

Answers

Answer/ Outside ejqkdke

Brown-eye color is dominant and blue-eye color is recessive. A brown-eyed man marries a blue-eyed woman and they have a son that has Green eyes. SC.912.1.16.1
What Pattern of inheritance is that?
sex-linked
Co-dominant
Incomplete dominance
O polygenic recessive

Answers

Answer: Polygenic recessive

Explanation: Because polygenic dominance describes a relationship between the alleles of a polygenic trait where some alleles are dominant and others are recessive.

This is the pattern of inheritance of Polygenic recessive. So, the correct option is (D).

What is Polygenic inheritance?

Polygenic inheritance can be described as the inheritance of traits that are governed by different genes and not just a single gene, and can also be referred to as non-Mendelian inheritance, where traits run like a bell. distributes the sizes and shows the different combinations such as dominant and recessive alleles.

Polygenic traits express several different phenotypes, or displayed characteristics where this inheritance is a type of incomplete dominance inheritance, where the expressed phenotype is a mixture of inherited traits.

Thus, this is the pattern of inheritance of Polygenic recessive. So, the correct option is (D).

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why do the other planets take longer to orbit the Sun than the inner planets do​

Answers

Answer:

Outer planets take longer to orbit than inner planets because of the greater distance they need to cover. They also are further from the sun weakening the power of the suns gravitational pull which causes then to orbit slower.

Explanation:

!!

Answer:

Because there are outter planets

Explanation:

A tall plant (TT) is crossed with a short plant (tt). What is the genotype?
Use a punnett square to solve.
OTT: 2/4; Tt: 2/4;tt: 0/4
TT: 2/4; Tt: 1/4;tt: 1/4
TT: 0/4; Tt: 4/4;tt: 0/4
TT: 1/4; Tt: 2/4;tt: 1/4

Answers

Answer: TT: 1/4; Tt: 2/4;tt: 1/4

Explanation:

The Punnett square is a diagram that is used in the predictions of genotypes. In this scenario, if we have a tall plant (TT) is crossed with a short plant (tt), after using the Punnett square, the genotype that we will get are as follows:.

TT, Tt, Tt, tt

Therefore, the correct option is option D "TT: 1/4; Tt: 2/4;tt: 1/4

Answer: TT: 1/4; Tt: 2/4;tt: 1/4

Explanation:

If someone can help me i will Give brainliest to the first person who give an answer this i promise u

Answers

Microscopes use lenses to magnify objects. A simple microscope uses only one lens; a magnifying glass could be called a simple microscope. The magnification of a simple microscope doesn't need any calculation because the single lens is usually labeled. A hand-lens, for example, might be labeled with 10x, meaning the lens magnifies the object to look ten times larger than the actual size.

Isostasy leads to isostatic adjustment if mass is redistributed. Erosion redistributes rock from the mountain to the sediment in the
basin. Which statement does NOT reflect what occurs when erosion happens?
-)))
A)
Mass increases at the crust.
B)
Less mass on the mountain causes uplift.
0
The crust beneath the mountain thins and rises.
D)
The mass of the crust decreases and the mass of the mantle increases.

Answers

Answer: It's A.

Explanation: I am doing UsatestPrep, Now I got this answer wrong, but afterwards it told me the right answer is! "Mass increases at the crust" I got the answer wrong originally because I chose B but it's actually A.

Answer:

Its A because Mass increases at the crust. . Mass is actually decreasing due to erosion of the crust, isostatic adjustment will thus, cause the mantle mass to increase over time.

Explanation:

please help my little sibling fr needs it . thank u !

Answers

Answer:

1 is C

2 is A

3 is B

Explanation:

1 - the cow is breathing and releases carbon dioxide the tree absorbs it and releases oxygen

2 - the cow Is breathing that's why it releases carbon dioxide

3 - the human takes in oxygen but breaths out carbon dioxide

What are the two main types of cells and where are they found in the human body?

Answers

Answer:

They are prokaryotes and eukaryotes and prokaryotes are single celled and eukaryotes are multi celled

Explanation:

Hope that helps! Have a fantastic day!

The two types of cells found in the human body are blood cells and immune cells.

What are cells?

Cells are the fundamental foundations of all life. Trillions of cells make up the human body.

They support the body's structure, absorb nutrients from food, repurpose those nutrients into energy, and perform specialized functions.

Nucleic acids, proteins, carbohydrates, and lipids are the four major classes of organic compounds found in all cells.

A cell is made up of three parts: the cell membrane, the nucleus, and the cytoplasm that lies between the two.

The cytoplasm contains complicated accommodations of fine fibers as well as hundreds or even thousands of tiny but distinct structures known as organelles.

Thus, there can be many cells in a human body, the most important perhaps are blood cells and immune cells.

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why do you think we should wear mask?

Answers

Answer:

So that we can limit the cases and keep safe :)

Explanation:

Answer:

masks slow the spread of the virus and or prevent you from catching the virus.

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