Describe and the explain the changes in blood lactic acid and concentration shown in the graph || guys someone please help i’m failing bio so hard!!

Answers

Answer 1

During the exercise period (10-15min) the blood lactic acid concentration increases to about 13.2 mmol/dL (same units as on graph) as the individual is having problems keeping up their aerobic respiration. After 15min, they stop exercising and the lactic acid concentration starts to return to normal as their body is able to take in enough oxygen and catches up with the excess lactic acid, metabolizing it into CO2 and H2O. The period between 15-20 min shows the fastest reduction in concentration.

Related Questions

According to Darwin's theory of evolution, what causes a struggle for survival in
populations?

Answers

Answer:

In a population, more individuals are born than can survive. The available resources in nature are finite (food, water, space, etc.) and the environment is not able to support unlimited growth of a population. This causes an inevitable struggle for existence among individuals (continual struggle for existence).

Explanation:

does anyone know the answer to this?

Answers

Answer:

hello! it is A.

Explanation:

during mitosis the cell divides into two identical daughter cells!

it’s answer D. the chromosomes are copied.

4) Complete the statement below showing the relationship between chromosomes,
genes and DNA.

Answers

Histone proteins form the chromosomes when the DNA is inserted into the active sites of the proteins.

Ok plz help I have this project and it’s already a day overdue but I spend over an hour searching this so if u know plz tell me ok so I need an example of each type of stimuli. The kinds are chemical, mechanical, and thermal

ALSO 50 POINTS AND BRAINLIEST IF YOU ANSWER

Answers

Answer:

three types of stimuli—mechanical, thermal, and chemical; some endings respond primarily to one type of stimulation, whereas other endings can detect all types. Chemical substances produced by the body that excite pain receptors include bradykinin, serotonin, and histamine.

Explanation:

What is used to regulate gas intake and output with a plant?

Answers

Answer-

The plants stomata!

Stomata regulate transpiration and CO2 intake by changing its size depending on the environmental signals. In optimum conditions, stomata are wide open, allowing gaseous exchange with the atmosphere.

The answer above is correct !

Explain mendel's experiment with peas on inheritence of characters considering only one visible contrasting character.
Ples answer in making points, it is for 5 marks.

Answers

➜ Mendel conducted breeding experiments with garden peas:

[i] He studied plants (pure) of a tall/short varities.

[ii] He crossed them and obtained F1 progeny.

[iii] He found that F1 progeny was all tall plants.

[iv] He selfed the (hybrid) plants if F1 progeny.

[v] He found that in F2 progeny there were tall as well as short plants.

[vi] The three quarter plants were tall and one quarter was short.

(or any other contrasting character may be taken).

Note: Here, F1 means First fillial generation and F2 means Second fillial generation.

Mendel selected garden pea for his breeding experiment because of its contrasting characters such as height of the plant, yellow or green seed, round or wrinkled seed shape. ... Then he allowed the hybrid plants of F1 generation to self-pollinated. In F2 generation all the progeny were tall as well as short plants...We used to take this character, we may choose different.

please please please help me on me I need it ASAP

Answers

The answer is
1. C
2. B

Fluorine, chlorine, bromine, iodine, and astatine make up group 17, the halogens. Why are these elements grouped together?

A They are all very reactive nonmetals with similar chemical properties.
B They are all nonreactive gases with similar physical properties.
C Their atoms all have 8 electrons in their outer energy levels.
D They all have the same atomic number.

Answers

Answer:

It is A, They are all very reactive nonmetals with similar chemical properties.

A cell with only one set of chromosomes is called [ diploid or haploid ] cell.

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Answer:

A cell with only one set of chromosomes is called a haploid cell.

The image, in which A represents a gene, shows a harmless mutation that has occurred in a species' genome. Which is the most
plausible way that this mutation may eventually benefit the species?

A)
Multiple copies of genes increase gene expression and protein synthesis,
improving fitness

B) One copy of the gene may mutate further and begin to function differently
from the original.

C) Individuals with different copy numbers of the gene will not be able to
mate, resulting in speciation.

D) Individuals with the mutation are not able to produce offspring and will be removed from the gene pool.

Answers

Answer:B

Explanation: I took this test

One copy of the gene may mutate further and begin to function differently from the original is the most plausible way that this mutation may eventually benefit the species.

What is Mutation?

A mutation is a change to an organism's Genetic sequence. Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.

Somatic mutations (which happen in body cells) cannot be passed on to offspring, whereas germline mutations (which happen in eggs and sperm) can.

Our cells constantly undergo mutations, yet surprisingly few of these have an adverse impact on our health. A mutation is never so advantageous in real life.

Therefore, One copy of the gene may mutate further and begin to function differently from the original is the most plausible way that this mutation may eventually benefit the species.

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6. What essential substances are stored by your bones
(1 Point)
Phosphorus
Calcium
red blood cells
O white blood cells

Answers

I agree it’s Phosphorus

which team did springbok starting playing with in 2019

Answers

Do you have a picture of if??

what happens when there is a decrease in carbon dioxide during gas exchange in the body?

Answers

Answer:

Increased carbon dioxide means increased blood acidity, while decreased carbon dioxide means increased blood acidity.

The bicarbonate reaction is reversible, which allows bicarbonate to turn back into dissolved carbon dioxide to diffuse from the alveolus.

At boxing practice, Nathan works with his coach to improve the strength of his punch.
Nathan says that the reason the bag is heavy is so that it can absorb plenty of elastic potential energy. Is he correct?

Answer Choices
A. Yes, he is correct.
B. No, the bag absorbs thermal energy.
C. No, the bag absorbs gravitational potential energy.
D. No, the bag is heavy so that its mass will only accelerate a small amount when he punches it.

Answers

A.Yes, he is correct

need help with this dont know

Answers

Answer:

I believe its A: determining how cells could develop from nonliving matter

True or false: autosomes are sex chromosomes

Answers

Answer:

True is your answer

Explanation:

An autosome is any of the numbered chromosomes, as opposed to the sex chromosomes. Humans have 22 pairs of autosomes and one pair of sex chromosomes (the X and Y). ... That is, Chromosome 1 has approximately 2,800 genes, while chromosome 22 has approximately 750 genes

Answer:

Its true!

Explaination:

Millicent encountered this organism while walking in the forest. It grows on dead trees, consuming the detritus left by other decomposers. What term best describes this organism?:
A
saprotroph

B
detritivore

C
predator

D
scavenger

MULTIPLE CHOICE

Answers

Answer:

A. Saprotroph

Explanation:

A saprotroph is described as an organism that gains nourishment from organic matter that has started to decay.

As per the situation, the organism that grows on dead trees, consuming the detritus left by another decomposer are saprotroph.

What is a saprotroph?

Saprotroph, also called saprophyte or saprobe, are organism that grazes on the nonliving organic matter known as debris at a microscopic level.

Bacteria, fungi, etc are examples of saprotrophs.

Thus, option "A" saprotroph.

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____________The following codon belongs to an mRNA molecule: TAC.

True
False

Answers

Answer:

true

Explanation:

because the TAC does in fact belong to an mRNA molecule

The answer is true!!

A $10 shirt is on sale for 25% off the price. What is the sale price of the shirt?

Answers

Yes the answer is $7.50

Which of the following is most helpful for identifying an organism using a dichotomous key?
O Its average lifespan.
0 Its sources of food.
O Its habitat.
O Its physical structures.

Answers

I believe it’s by the traits, so it would be physical structures. Because of there’s only two options available, which is see better by the traits of the unknown specimens.
Lol I think thouuuu cuz I do fully remember everything.

help me will reward brainliest

Answers

I think it is Intercalary Option C

Lungs in humans and many other species branch out into many tubes until they end in small sacks called alveoli. These alveoli allow oxygen to enter the blood through the capillary beds as pictured above. Alveoli provide much more surface area for the lungs to contact the capillary beds. What is the advantage of lungs with alveoli compared to lungs without alveoli?

Answers

Answer:

It provides more surface area for the absorption of oxygen.

Explanation:

The advantage of lungs with alveoli compared to lungs without alveoli is the availability of large surface area for the oxygen absorption. Alveoli allows oxygen from the air to pass into your blood. There are 480 million alveoli are present in human lungs, this large number and small size of alveoli provides lungs a large surface area to volume ratio so we can conclude that the lungs work better with the help of alveoli as instead of lungs without alveoli.

how would you describe a phospholipid?

Answers

Answer:

The answer would be Hydrophobic tail and a hydrophilic head. Just some background info, this is located in the cell membrane and the cell membrane is made of up something called the Lipid Bilayer. The word "bi" means 2, so it comprise of 2 layers of phospholipids. These 2 layers of phospholipids are called hyrodrohpbic and hydrophilic. The word "phobic" means fear, so they hydrophobic molecules are NOT attracted to water. Hydrophilic molecules, however, ARE attracted to the molecules.

Hope this helps!

2. Explain the relationship between genetic variation and an organism's ability to adapt to its environment,

Answers

Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation. Some new alleles increase an organism's ability to survive and reproduce, which then ensures the survival of the allele in the population.

Which of the following is not an appropriate unit for momentum?

A. g • cm/min

B. g • m/S

C. km • m/S

D. kg • m/hr

Answers

Answer:

Option C us correct.

km • m/S

Explanation:

This is because momentum is result of mass and velocity of an object. Momentum is a vector quantity that is it has magnitude and it's direction is in form of three dimensional.

From the option C, kilometer there is not a unit for mass or velocity it it is a unit for distance, therefore it is incorrect.

Can someone help me with this?

Answers

Answer:

the last option is the answer

the answer is Genes received from their parents!!

What role did the Yam play in the expansion of the Mongol Empire?

Answers

Answer:

The yam was the cornerstone of Mongol administration and allowed the Great Khan to run one of the largest empires in history.

Explanation:

Answer:

The yam was the cornerstone of Mongol administration and allowed the Great Khan to run one of the largest empires in history.

Explanation:

that is your answer, have a great day!

What data provides the strongest evidence (most valid) that early Earth conditions provided what was necessary for life?
A- Fossil evidence showing that prokaryotic cells required an environment free of oxygen.
B- Genetic comparisons revealing that living and extinct organisms share commonalities.
C- Geological dating techniques supporting theories regarding Earth's age.
D- Geological studies proving that volcanic gases resemble those from early Earth.

Answers

Answer:

A - Fossil Evidence showing that prokaryotic cells required an environment free of oxygen.

Explanation:

Thanks OP for answering your own question!

The data that provides the strongest evidence (that is, the most valid evidence) that early Earth conditions provided what was necessary for life is revealed by genetic comparisons, which reveal that living and extinct organisms share commonalities. This is option B.

What are genetic comparisons in evolution?

Genetic comparisons are the most direct and reliable source of evidence supporting the theory of common ancestry and the origin of life on Earth. All living organisms share a common set of genetic building blocks, such as DNA and RNA, and use the same genetic code to translate this information into the proteins that make up living organisms. Genetic comparisons reveal similarities between living organisms and extinct organisms, such as ancient bacteria and archaea, which provides further evidence for the common ancestry of all life on Earth.

Hence, it is revealed by genetic comparisons, which reveal that living and extinct organisms share commonalities. This is option B.

Learn more about the genetic comparisons here.

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Which step in the process of cellular respiration produces the most ATP?
glycolysis
citric acid cycle
electron transport chain and oxidative phosphorylation
fermentation

Answers

Answer:

c. electron transport chain and oxidative phosphorylation

Explanation:

Where does a clinical trial usually take place?
O A. In a hospital
B. In a test tube
c. In a placebo
D. In a petri dish

Answers

The answer is a. In a hospital.

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7 (4 1/3) using distributive property What is the central idea of this passage? In modern times, could Easter Island statues be built? The price of an item has been reduced by 45% . The original price was $15 help :,)Question 7(Multiple Choice Worth 5 points)(MC)An author claims that "zoos do more good than harm." The author provides the following as support for the claim:In 2012, the well-respected research firm Martin and Associates conducted a study on the request of animal rights activists. The published report was overwhelmingly one-sided. Head researcher Adeline Moreno summed up the results by stating, "The importance of zoos cannot be overstated. The economic and educational benefits for humans are great. The protection and preservation of endangered species is even greater."Which choice best describes the support the author provides? It is effective support for the claim. It is ineffective support because it does not help prove the claim. It is ineffective support because it presents opinion rather than fact. It is ineffective support because it provides no source for the information. What was Modernist about the poetry written as part of the Harlem Renaissance?a. its use of traditional poetic formsb. its tendency to include realistic detailsc. its focus on questions of identityd. its inclusion of classical references Each side of a square is 3inches long.a student increases the length of each side by 3inches.the are of the new Square is how many times the area of original square?A=2B-3C=4 D=a fill in the blank with the correct conjunction of the verb and parentheses in the imperfect tense(ILL GIVE BRAINLIEST TO WHOEVER CAN HELP) What are some negative impacts of having this life cycle that might have contributed to a decline in the dragonfly population? The US was called the Arsenal of Democracy becauseIt was the country where all weapons were kept.It provided supplies for the Axis war effort, not just the US effort.It provided supplies for the Allied war effort, not just the US effort.It was the country where all aircraft were housed. Devon is a 240 pound male who met some friends for drinks at a club around 10:30 pm. The bar closed at 3:00 am, but Devon and his friends wanted to "beat the rush," so they finished their last drinks at 2:30 and left. Each person drank 6 drinks. When reaching their cars in the parking lot, Devon noticed that his friend Peter was stumbling so badly that he decided he was too intoxicated to allow him to drive, so Devon drove Peter home. thirty percent of all seventh graders own a bracelet. explain whether the sample closely estimates the percentage of seventh graders who own a bracelet. 30 seventh graders, 3 own a bracelet If A and B are supplementary angles and A is seventeen times as large as B, find the measures of A and B. p which- x2+8x+p=0 will have equal roots !!ASAP PLS 20 PTS!! Which of the following best describes the significance of the Voting Rights Act of 1965?A. The act was vetoed by the president due to concerns about the violent response in the South, but Congress overrode the veto.B. Within a few years of its passage, the number of black registered voters and elected officials had increased substantially.C. It marked the first substantial change to voting rights since the ratification of the Constitution in 1787.D. Southern states refused to recognize the new legislation, and as a result federal troops were sent to escort black voters to the ballot box. in a box of chocolates 1/4 Are white chocolates, 5/8 Are dark and the rest are brown chocolates. What fraction of the chocolates are brown. A bag contains 3 red marbles, 3 blue marbles and 1 green if a marble is drawing from the bag at random what is the chance of the marble being blue Please try, Ill give Brainliest, and 70 points to the one who answers thisIts due tomorrow so answers ASAP personal observation Which r-value suggests a weak negative correlation?A. r = 0.13475B. r = 0.95768C. r = -0.13475D. r = -0.95768