After several miles of running and sprinting in intervals, the runner’s muscles ache and feel fatigued. Which is the best explanation for what has occurred?
The runner's muscles have accumulated lactic acid.
The runner’s body has failed to perform cellular respiration.
The runner’s cells are relying completely on aerobic respiration.
The runner’s muscles have accumulated carbon dioxide.

Answers

Answer 1

Answer:

A

Explanation:

Just did the Unit Test

Answer 2

When the body is subjected to vigorous exercise, lactic acid tends to build up in the muscles, hence, the most probable explanation for the fatigue felt by the runner is the accumulation of lactic acid in the runner's muscle

When the body is subjected to vigorous exercise such as running several miles as performed by the subject in the question, lactic acid accumulates temporarily in the muscles.

This temporary build up of lactic acid in the muscles causes feeling of fatigue or weakness as the body tends to become short of oxygen required to breakdown the glucose in the blood.

Therefore, the runner most probably has accumulated lactic acid in his muscles.

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Related Questions

What is the smallest or most specific level of organisation you and your neighbors all have in common

Answers

Answer: The levels, from smallest to largest, are: molecule, cell, tissue, organ, organ system, organism, population, community, ecosystem, biosphere.

Explanation:

Answer:population

Explanation: I got it right

help for brainliest..........

Answers

I believe it is 137 kg. (the third one down)

Glucose is a building block of carbohydrates. Which of these best describes glucose?
A. nucleotide
B. protein
C. monosaccharide
D. lipid

Answers

Answer:

monosaccharide

Explanation:

Glucose is called a simple sugar or a monosaccharide because it is one of the smallest units which has the characteristics of this class of carbohydrates.

Glucose is the simplest monosaccharide which cannot be broken down further. Thus, option C is correct.

What is Glucose?

Glucose is the primary component of carbohydrates. Glucose is a monomer made up of carbon, hydrogen and oxygen. Molecular formula of glucose is C6H12O6.

The functional group in glucose is an aldehyde present at the first carbon atom.

Glucose is called monosaccharides because it cannot be hydrolysed further. It is the simplest carbohydrate also referred as simple sugars.

Glucose molecules are chiefly linked together forming a glycosidic bond by removal of water molecule and form a disaccharide.  

Glucose is chiefly produced by plants during the process called photosynthesis.

Glucose is the key component in metabolism. It provides energy to the body cells to carry out physiological activities. Glucose is found in blood.

Excess of glucose in the blood results in a medical condition called diabetes. It can be life threatening if not managed on time.

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Adult giraffes eat about 75 pounds of food in a day. On average, an area can provide 450 pounds of food per day for giraffes.

Based on this information only, what is the carrying capacity for adult giraffes in this area?

6
75
375
450

Answers

Answer: the carrying capacity for adult giraffes in this area is: 6.

Explanation: [ 450 pounds divided by 75 = 6. ]

Fun Fact - Giraffes can drink up to 10 gallons of water a day and spend 16-20 hours a day feeding, their favorite food is Acacia Leaves.

Adult giraffes eat 75 pounds of food in a day. On average, an area can provide 450 pounds of food per day for giraffes.

The carrying capacity for adult giraffes in this area are 6.

How the carrying capacity for giraffes in given area is determined?

Adult giraffes eat = 75 pounds of food per dayArea provides = 450 pounds food per day

so, carrying capacity for giraffes in the area equals,

 food provided by are per day\ food eater by giraffes in a day

=450\75

= 6.

Hereby, carrying capacity of giraffes in this area is measured.

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Hormones in the bloodstream are what

Answers

Answer:

chemical messenger.

Explanation:

yw loves!!!!

Answer:

CHEMICAL MESSENGER

Explanation:

did the Assignment

Drag each tile to the correct box .
Water evaporates from a lake. Arrange the next steps of the water cycle in the correct order.
Water vapor condenses to form clouds.
Water flows down mountains and hills.
Water falls as rain, snow, and sleet.
Water joins streams or forms groundwater.

Answers

Water vapor condenses to form clouds , water falls as rain, snow, and sleet, water joins streams or forms ground water , water flows down mountains and hills

The water cycle is the processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.

Sequence of water cycle

Water vapor condenses to form clouds. water falls as rain, snow, and sleet. water joins streams or forms ground water. water flows down mountains and hills.

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What particle(s) are found in the center of the atom?

Answers

Protons and neutrons are in the center

Answer: Protons and Nuetrons are heavier then Electrons

Explanation: Protons, Nuetrons, and Electrons are the three main particles in a atom

is algae plant- like, fungus- like, or animal- like

Answers

Answer:

plant-like

Explanation:

Even though It's a living thing, it contains structures within their cells that resemble plant cell structure. For example, it has chlorophyll.

___ is the only continent not to experience tornadoes. Africa Antarctica America

Answers

antartica i think sorry if i’m wrong
Antarctica is the only continent not to experience tornadoes

Mosquito repellent is sprayed on one arm and the other one is not sprayed. the number of mosquito bites is counted after 2 hours. what is the dependent variable and independent variable?

Answers

Answer:

who will answer this

Explanation:

How are plant and animal cells similar?

Answers

Answer:

both are eukaryotic cells

Answer:

they both are eukaryotic cells

they both contain membrane-bound organelles

both have mitochondria, vacuoles, cytoplasm, ribosomes, endoplasmic reticulum, and Golgi apparatus

THIS IS A PSYCHOLOGY QUESTION.
Describe the major theories for the purpose of sleep. Why do we sleep?

Answers

sleep serves a number of different physiological and psychological purposes including cleaning up brain toxins and consolidating information into memory.

Minerals:

A. were once living
B. are man-made materials
C. are only found in rocks
D. naturally grow into crystals​

Answers

Common Minerals are only found in rocks

Organisms need _____ to conduct essential life activities

Answers

Answer:

The correct answer is energy. Other organisms are not necessary, just like offsprings since there are many organisms that never have offsprings. Light is also not necessary with numerous organisms, especially those like the ones that live deep in the sea where light never reaches. Some form of energy is necessary for everyone.

What term best describes region “B” of the phospholipid model above?

Answers

Answer:

Hydrophobic

Explanation: The phospholipid has a chagred head (Phosphate region) and hydrophobic tails. Lipids are usually nonpolar and hydrophobic. That is why the tails are oriented towards the interior of the membrane.

The two parts 3 and 4 in the region B of the phospholipid model are 3- saturated fatty acids and 4- unsaturated fatty acids.

What is phospholipid model ?

Phospholipids are a class of lipids having significant role in the construction of cell membranes. It is composed of a hydrophilic head with a phosphate group and a hydrophobic tail with fatty acids end.

The fatty acids present in the phospholipid bilayer , are of two types, Saturated and unsaturated. Fatty acids chains without any double bonds or triple bonds are called saturated fatty acid.

Whereas, fatty acid chain with double bonds or triple bond are called unsaturated fatty acids. These two fatty acids chain creates the hydrophobic tail of the phospholipid bilayer.

Hence the region marked as B is saturated and unsaturated fatty acids.

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Which statement best contrasts the urinary and excretory systems?
The urinary system is involuntary, while the excretory system is voluntary.
The urinary system includes the bladder, while the excretory system does not.
The urinary system filters waste for nutrients, while the excretory system has no filter.
The urinary system removes liquid waste, while the excretory system removes solid waste.

Answers

The organs of the urinary system are organs of excretion—they ... filter the blood to remove metabolic wastes and then modify the resulting fluid, which al- ... But in the kidneys, we find an unusual capillary bed that is both...

Answer:

The urinary system removes liquid waste, while the excretory system removes solid waste.

Explanation:

just got it right

give two roles of nucleus in the cell​

Answers

Explanation:

The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus.

is it ok if u could try and help me with my last question if so thx

Lipids are considered *

Hydrophobic
Polar
Hydrophilic
Like little magnets

Answers

Lipids are generally considered to be hydrophobic.

how can you change a sedimentary rock into an igneous rock?

Answers

Answer:

The answer is A. Melting and Cooling.

Explanation:

What would happen to a plant cell if it placed in water?

Answers

Answer: It really depends on if the water solution is hypotonic, hypertonic, or isotonic. If it is hypotonic (water with less salt or other dissolvent in it than the cell), you can expect the cell to take in water and expand. If the water is isotonic (about the same amount of dissolvent in it as the cell) just about nothing will happen, or if the water is hypertonic (more dissolvent in the water than the cell) the water can seep out of the cell, and into the water.

In science class, Maria observes a white-colored cut flower. She sees that the petals turn red when the flower is sitting in a vase that has
red-colored water.
She forms a hypothesis that the color reaches the flower through the stem. What should Maria do to confirm the hypothesis?
A. She should repeat the experiment with the same type of flower and photograph the changes over time.
B. She should ask her science teacher about the flower to confirm whether her hypothesis is correct.
C
She should try the experiment with a potted plant with roots and observe any color changes.
D
She should repeat the experiment with a different species of plant and photograph the changes.

Answers

Answer:

D

Explanation:

Its d I think tell me if it's wrong If it is I'm sorry

Answer:

A.

She should repeat the experiment with the same type of flower and photograph the changes over

Explanation:

All organisms have organs and/or body systems. True or False?

Answers

Yes it is very True (:

What role do decomposers play in the food chain?

Answers

Answer: Decomposers breaks down dead or decaying organisms. Decomposers carry out the natural nutrients to decomposition
They break down dead organisms

What causes an earthquake?


hard collisions between tectonic plates


buildup of pressure between tectonic plates


buildup of magma


extreme rock deformation

Answers

Answer: ( B. ) build up of pressure between tectonic plates

Explanation:

can someone anser this pls

Answers

Answer:

I'm really just guessing but, you should try (B)

(B) a gamate containing a complete set of the genetic information

what is a living factor ?

Answers

Answer:

A factor of something that all living matter has

Explanation: like we have organs and lungs and a pancreas whiles rocks dont

Describe the difference in how a monosaccharide and polysaccharide are digested

Answers

Answer:

polysaccharides from cells walls make up the fiber humans eat, while monosaccharides provide the sweetness in food. As humans eat, chewing breaks down polysaccharides into smaller particles that eventually, through digestion, yield up the simple monosaccharides that can pass into the bloodstream

The monosaccharide provide longer storage and structural stability as humans eat chewing breaks down polysaccharide into smaller particles that go through digestion eventually, monosaccharide that goes into the bloodstreams

Science is open to change.
O True
O False​

Answers

False not unless it has went under many experiment to be proven else how

This is true in most cases. More is found about a topic, then what is known can change depending on what information can be found.

Which would most likely interact with an open flame and cause an accident
A-Covered shoes
B-Contact lenses
C-Goggles
D-Loose hair?

Answers

Answer:

D, loose hair.

Explanation:

If your hair is long enough, it could easily drift into the flame and catch on fire.

Answer:

D. Loose hair

Explanation:

Loose hair would be the most likely to cause an accident with an open flame.

Especially if the hair is long, it can dip down into the flame and catch on fire.

The other objects would not be interacting with the flame because they would be far away, while loose hair can reach into the area where the flame is.

Sunspots are dark areas on the surface the Sun.They mark strong magnetic fields, and more sunspots indicate that the Sun is more active and is releasing more energy. The following graph presents the average daily number of sunspots from 1900 through
1944. Each data point is the average for one month.

Answers

So why didn’t you look the answer up
Look the answer up on google trust me you will find what your looking for
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