The graph below shows the number of push-ups a
student completed in each of four 2-minute trials (A-
D) during a 15-minute exercise period.
70-1
65
60
Trial A
50
45
Trial B
Number of Push-ups
Trial
25
20
15
10
Trial D
5
0
D
2 3 4
6 7 8 9 10 11 12 13 14 15
Time in Minutes
The concentration of lactic acid in the student's
muscle tissue was most likely greatest during trial
A) A В) В
C) C D) D
Option D has the highest concentration of lactic acid in the student's muscle tissue.
We can arrive at this answer because:
Lactic acid increases its concentrations in the muscle due to a high physical effort in anaerobic conditions.This promotes a lack of oxygenation in the muscle, which through contractions, causes the cell to partially catabolize glucose molecules.The result of this is the creation of two pyruvic acid molecules, which will react with NADH2 molecules, creating lactic acid, which will build up in the muscle as the exercise continues.As we can see in the information presented above, option D shows the performance of flexions with more intensity and for a longer period, which justifies a greater accumulation of lactic acid in the muscle.
It is important to remember that the accumulation of lactic acid in the muscle is a negative situation and that it can cause muscle pain and fatigue.
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What factors help blood move through veins?
The pumping force of the ventricles moves blood through the arteries. The breathing movements exerts pressure on the chest veins, the valves in the larger veins keep the blood from flowing backwards, and the skeletal muscles' contraction all help the blood in veins to move.
The skin is the body's largest organ. It's made up of many different types of cells.
a. True
b. False
When an infant suckles at its mother's breast, milk moves through the breast structures in what order
When an infant suckles at its mother's breast, milk moves through the breast structures in the order
Acinus - lactiferous duct - lactiferous sinus - nipple
When an infant suckles, milk is secreted from lactocytes into the alveoli (acinus). The milk is then squeezed from the alveoli so it can drain into the lactiferous ducts, milk drains from lactiferous ducts into lactiferous sinuses, and discharge through the nipple pores.
Hence, when an infant suckles at its mother's breast, milk moves through the breast structures in the order
Acinus - lactiferous duct - lactiferous sinus - nipple
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On the internet, read about the Clean Air Act of 1990:
a. Summarize what it says.
b. How should it help with the problem of acid rain?
c. How successful has it been in reducing the harmful chemicals from the burning of fossil fuels that cause acid rain?
d. What can you do personally to help alleviate the problem of acid rain?
3. Find two examples of actual ecological places that have been affected by acid rain. Tell their location and describe what happened.
Acid rain is formed when gases such as SOx and NOx are released by burning fossil fuels.
The clean air act has to do with the reduction of the gases that lead to acid rain such as SOx and NOx. The full implementation of the legislation ought to reduce the occurrence of acid rain.
However, since the introduction of the act in 1990, reduction in acid gas pollution has not reduced significantly since acid gases are still produced by the burning of fossil fuels.
To help alleviate the problem of acid rain, I must reduce my use of gasoline powered vehicles and embrace vehicles that depend on renewable energy sources and clean fuels such as hydrogen fuel.
Eastern Europe countries such as Poland and Scandinavia have been severely affected by acid rain. The pH of water bodies in these areas are unusually low.
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What is the disadvantage of plasmolysis to the terrestrial plants?
Answer:
technical of plants living on the land or on the ground,so floppy plant.
what part of the heart pumps blood to the rest of the body
Answer:
the heart pumps the blood thru thr body
Please help !!!
Will give you the brainliest !!
Answer:
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1. Generally, production traits such as milk, fat, and protein yield are moderately heritable. While milk production traits are important, many other traits are of economic importance in dairy cattle breeding, including conformation, longevity, reproduction, health, and workability traits.
2. Would've surely practiced selective breeding via controlled mating... the three ways : Outcrossing , Line Breeding and Inbreeding can help in producing a herd of high yielding beef capital.
hope helpful~
people who have come back from being legally declared dead. what was your experience
my friend told me that one his friend uncles was in a car crash not in a bad one but it did send his uncle flying it hit his head and there was alot of blood people thought he was dead but after like a few hours in the doctor he just opened his eyes but still couldnt move
Which portion(s) of the brain maintains homeostasis in the muscular system by coordinating skilled movements
Answer:
I know that hypothalamus is responsible for homeostasis, I don't know if any other part of the brain helps
What’s the sun and Estimate to 5/10+4/9?
Answer:
The answer is 17/18
Explanation:
Please take a look at the attached picture for the explanation.
Which of the following steps occurs in both cellular respiration and photosynthesis?
a. Krebs cycle
b. Light-Dependent reaction
c.glycolysis
d.electron transport chain
Answer:
I'm pretty sure the answer is B
Which type of curve?*
exponential
logistic
Answer:
Answer: The different types of curves are Simple curve, Closed curve, Simple closed curve, Algebraic and Transcendental Curve
Which process can cause chemical overheating
Answer:
Thermal Runaway
EX- Thermal runaway describes a process that is accelerated by increased temperature, in turn releasing energy that further increases temperature.
Explanation:
For a more simpler explanation , picture a pot of water and as you increase the volume of fire so does the energy (HEAT) inside . As air bubbles (ENERGY) start to quickly evaporate (BOILING) this actually increases the temperature inside causing Thermal Runaway.
the model show's a portion of a DNA strand. What does the pentagon represent in the model?
what is the use of base
Answer:
to change colour of chemical
Answer:
to multiply hight and know after that tthe rectantange or are
Most of the aerobic respiration of a cell takes place in which structure?
A chloroplast
B lysosome
C vacuole
D mitochondria
Describe ways in which HIV can be transmitted
Answer:
From mother to child.
Unprotected sexual intercourse.
Sharing of sharp objects.
Unscreened blood transfusion.
Contact with body fluid of an infected person
One way scientists can analyze and interpret data to identify potential environmental factors is by
Answer:
Environmental factors include factors in the surroundings that can have an impact on humans. This includes climate, temperature, population density, pollutants, etc.
Explanation:
A way that scientists can analyze and interpret data to identify the potential environmental factors is by analyzing the distribution or variation in traits across a population.
Across a population, environmental factors might play a role with regards to any of the factors including distribution by allowing for variations to occur in these traits.
These variations can then be studied and analyzed.
The other options are determined by genetic factors.
I ACCIDENTLEY SCREAMED PRETTY GAY
Answer:
.
Explanation:
Answer:hahahahah really why thats so funny
Explanation:
4. Jasmyne has not eaten in eight hours. She is very tired and does not have enough energy to play soccer. Which of the following may explain why she does not have enough energy?
A Her cells do not release enough energy because they do not have enough amino acids.
B Her cells do not release enough energy because they do not have enough glucose.
с Her cells do not release enough energy because they do not have enough water.
D Her cells do not release enough energy because they do not have enough carbon dioxide.
Answer:
I would say that A is the correct answer. Foods release amino acids. Hope this helps. :D
5. Which of the following result in protein?
A. Transcription
B. Translation
C. Replication
D. Digestion
Answer:
Translation
Explanation:
A. Transcription RNA -> Protein
B. Translation DNA -> RNA
C. Replication DNA -> DNA
D. Digestion Catabolism of molecules
The roller coaster is your favorite ride! but the line is always long! having just studied potential and kinetic energy in physics, you evaluate the energy changes of the cars as they move on the tracks. Compare the potential energy of the cars if they are stopped at points A to point D.
A. Neither have potential energy.
B. The potential energy is the same.
C. Potential energy is greatest at point D.
D. Potential energy is greatest at point A.
Potential energy is greatest at point D. Therefore, option C is correct.
What is potential energy?Potential energy is the energy that is stored inside of an object due to the object's position, state, or arrangement. When an object's position, status, or configuration changes, the energy that has been stored in it is released.
The gravitational potential energy of an item, the elastic potential energy of a stretched spring, and the electric potential energy of an electric charge in an electric field are examples of common types of potential energy.
Potential energy depends upon the mass and height of the object. The greater the mass and height, the greater will be the potential energy of the object. The height of position D is maximum, therefore potential energy is greatest at point D. Hence, option C is correct.
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please help need answer.
Answer:
Non-use of drugs:
1. A teen is with family and friends.
2. A teen is a healthy student and athlete
3. A teen is focused and living life free and happy.
Use of drugs:
1. A teen doesn't socialize and doesn't around too many people due to social anxiety caused by the use of drugs.
2. A teen has health problems in his liver and kidney due to the abuse of drugs and is not able to play any sports due to this permanent health condition.
3. A teen is in jail due to being caught in possession of drugs and failing a drug test and being unhappy with anxiety and addiction.
name three different releasers that can trigger a behavior
Reflex, taxis and kinesis are the different releasers that can trigger a behavior.
What is Behavior?Behavior is defined as the range of actions and behaviors performed by individuals, organisms, systems or artificial entities in some environment, whose systems may include other systems or organisms as well as inanimate physical environments.
These play important roles in survival, long-term and short-term health, and emotional and physical well-being. While some behaviors are innate, and others are conscious choices. Behavior is the result of a complex interaction between genetics and environment, and includes emotional and physical actions and reactions.
The simplest example of an innate behavior which is a reflex action: an involuntary and rapid response to a stimulus, or cue.
Thus, reflex, taxis and kinesis are the different releasers that can trigger a behavior.
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Oxygen is made during photosynthesis. (True or False)
Answer:
True
Explanation:
True
explain the interaction between geological events, human population, and the environment
The relationship between the environment, human population and geological events is complex and multidimensional. While human activities can also have significant effects on geological processes, geological events such as earthquakes, volcanic eruptions and climate change can have significant effects on the environment and human populations.
What is an Environment?The conditions and forces that surround an organism, population or community are called its environment. It includes all elements of the Earth, both living and non-living, such as the atmosphere, hydrosphere, lithosphere, and biosphere.
The environment is a complex system that living things interact with and influence how they survive, develop and thrive. This includes biological elements such as plants, animals, microorganisms and their interactions, as well as physical elements such as temperature, light, water, soil, wind and topography.
Therefore, the relationship between the environment, human population and geological events is complex and multidimensional.
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Which organisms "invented" (were the first to use) fermentation?
a
fungi
b
plants
c
bacteria
d
animals
Answer:
bacteria
Explanation:
because they are the one that still been in use
When a cell divides via asexual reproduction :________.
i. each daughter cell receives exactly half the genetic information in the parent cell.
ii. the genetic information is randomly parceled out to the daughter cells.
iii. each daughter cell receives a nearly perfect copy of the parent cell's genetic information.
iv. each daughter cell receives the same amount of genetic information that was in the parent cell, but it has been altered.
Answer:
three number each daughter ce receives nearly perfect copy of the parents cells genetic information
what does thermohaline circulation have in common with coastal upwelling
Answer:
Coastal upwelling is the process by which strong winds blow down the coasts of continents and, in conjunction with the earth's rotation, cause the surface waters to be pushed offshore. Water from the ocean depths is then pulled up - or upwelled - to the surface to take its place
