Emma and her younger brother were running a race. After 30 minutes, Emma started feeling pain in her lower leg muscles. a. Suggest the reason for this.
Answer:
This is due to lactic acid accumulation in Emma's leg muscles.
Explanation:
In the absence of oxygen in the muscle cells, the cell switches from performing aerobic respiration to lactic acid fermentation. The lactic acid fermentation produces lactic acid as a product, which builds up in the muscle cells of the body causing a burning sensation and pain. This often happens during exercises.
This is the cause of Emma's pain in her lower leg muscles. Lactic acid has been formed and accumulated in the muscle cells of her leg during the exercise with her brother.
Of the 23 pairs of chromosomes in the human body, how many pairs are homologous?
A. 23
B. 22
Answer:
B. 22
Explanation:
Humans have a total of 46 chromosomes, but there are only 22 pairs of homologous autosomal chromosomes
The weight of an object is measured by an equal arm balance. True False
Answer:
True
Explanation:
The weight of an object is measured by an equal arm balance. The mass of an object is measured by a scale. The mass of an object changes with elevation. The weight of an object will change with elevation on the Earth.
Mention the three types of collisions involved in convergent boundaries.
ANSWER :
Oceanic-oceanic boundariesOceanic-continental boundariesContinental-continental boundariesHope it helps ya...!!♡
Identify the transformations of energy that take place in the diagram. Assume the girl in the diagram eats the corn to gain the energy to ride the bike.
Answer:
kinetic and solar energy
Explanation:
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Answer: This is it!
Hope this helps
Can someone Help me with this please
Answer:
Explanation:
1> Because meat is more calorically dense than vegetables
2>Sunlight is necessary for plants to grow, and to provide energy to warm the earth's atmosphere. Light intensity controls plant growth. Light duration affects plant flowering and animal/insect habits.
3> The pyramid of biomass can be upright or inverted, but pyramid of energy is always upright.
Which of the three components that plants need do we provide?
Answer:
Plants, like all living organisms, have basic needs: a source of nutrition (food), water, space in which to live, air, and optimal temperatures in order to grow and reproduce. For most plants, these needs are summarized as light, air, water, and nutrients (known by the acronym LAWN).
15wanted to know whether the eating behavior of goldfish is affected by music. He set up a fish tank. Every day played music for the fish and measured how much fish ate. What is missing from this experiment?
A. a control groups
B. a measurable result
C. different types of fish
D. an outcome variable (dependent variable)
Answer:
A
Explanation:
A is correct; control group is missing as he would want to know how the goldfish ate normally without music
B is incorrect; amount that the fish ate is a measurable result
C is incorrect; the experiment is only about goldfish
D is incorrect; the amount of food that the fish ate is the dependent variable
pls help ASAP no link
Answer:
atmosphere, underground, glaciers , Oceans.
water that falls from the clouds towards the ground like rain or snow or sleet
Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers.
Evapotranspiration is the sum of water evaporation and transpiration from a surface area to the atmosphere.
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Which of the following is the learned behavior conducted by animals in which the animal recognizes and follows the first thing it sees after birth?
A.) Imprinting
B.) Innate
C.) Conditioning
D.) Estivation
Answer:
A imprinting
Explanation:
MRK ME BRAINLIEST PLZZZZZZZZZZ
plz help i need this asap!!! Which characteristics do all bony and jawless fish have in common? Check all that apply.
backbone
swim bladder
scales
gills
bony skeleton
Answer:
Gills, Scales, swim bladder, and backbone.
Pls my you help me with these questions
Question 11: After conducting research, does your conclusion need revision? Why? Support your
revision with evidence from literature.
I
Yes, after completing the analysis, your decision needs correction. It is done to reduce the chances of errors that unknowingly happens.
Why do we need to conclude and recommend upon completing your research study?The decision offers you the chance to colour on the influence and value of your result.
This is especially critical if your study came studying the study problem from an unique or creative perspective.
Training possible new or expanded ways of thinking about the study trial.
Thus, Yes, after completing the analysis, your decision needs correction.
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SOMOE HELP ME WITH THIS PLEASE I WILL LOVE U FOREVER
Answer:
try C
Explanation:
Sorry if im wrong :(
Which Cell Parts are ONLY in Plant cells?
Answer:
Cell Wall, Choroplast.
Explanation:
Read the following passage from the Biology Department at University of California, Berkeley.
Northern elephant seals have reduced genetic variation because hunting by humans reduced their population size to as few as 20 individuals at the end of the 19th century. Their population has since rebounded to over 30,000, but their genes still carry the marks of this near extinction: they have much less genetic variation than a population of southern elephant seals that was not hunted as intensely.
Which of the following best describes how the population has evolved?
The population has not evolved because there was no change in allele frequencies.
The population has not evolved because it has grown.
The population has evolved because it has grown.
The population has evolved because there was a change in allele frequencies.
Answer:
the last one sorry if i'm wrong
Explanation:
According to the passage from the Biology Department at University of California, Berkeley.Northern elephant seals have reduced genetic variation because hunting by humans reduced their population size to as few as 20 individuals at the end of the 19th century. Their population has since rebounded to over 30,000, but their genes still carry the marks of this near extinction: they have much less genetic variation than a population of southern elephant seals that was not hunted as intensely.
The best option that describes is" the population has not evolved because there was no change in allele frequencies.Thus, option B is correct.
What is population?The term population reffered to the total number of people living in a particular given area.The population of an organism can't survive if it exceeds it's carrying capacity.
The causes that affect population growth animals that if there are more plants than usual in area, populations of animals that eat that plant may increase.
If animal population increases the population that eat that animal might also increase.
The effects of animals population can be dangerous and when population exceed the carrying capacity of their environment, animal suffer of malnutrition and disease.
When predictors became scarce due to over population, the weekar species of animal start or die in other ways .
The accurate description of the growth of a natural animal population is limited by environmental factors.
Therefore,The best option that describes is" the population has not evolved because there was no change in allele frequencies.Thus, option B is correct.
Learn more about population here:
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In today's world, a phone call to 911 is designed to ensure that emergency services, including fire, law enforcement, and emergency medical care is accessible to all individuals who find themselves in an emergency. Traffic laws establish that drivers are to move their vehicles to the right of the road and come to a stop in order to allow an emergency vehicle to pass. Emergency medical care is recognized as vital to helping to keep people safe and healthy. Yet, emergency medical services (EMS), as we know them today were only formally established in United States the 1970s. How did the country survive for so long without these services? What did citizens do if they had an emergency? What changes took place that made EMS a part of the emergency care provided for citizens? In this chapter, you will learn about the history and development of EMS in the United States.
OBJECTIVES
Understand the history of EMS in the United States.
Understand the major historical developments that contributed to modern EMS.
Understand the legislative and administrative decisions that help to modernize EMS.
Understand the basic challenges to providing effective EMS care.
VOCABULARY
ambulances emergency medical vehicles designed to transport ill and injured persons
cardiac pertaining to the heart
cardiopulmonary resuscitation CPR , method of keeping a patient breathing and his or her heart beating using manual techniques
heart defibrillators medical devices designed to provide electrical current to restart a stopped heart
Highway Safety Act act passed in 1966 that established a program to improve highway safety and to improve the nature and quality of EMS in the United States
paramedics emergency medical professionals who provide advanced medical care, including life support, during emergencies
pediatric pertaining to children
triage system in which wounded soldiers are treated in order according to the severity of their injuries, regardless of other factors such as rank
Answer:
A
Explanation:
in what way are the digestive system and circulatory systems alike
a:They both perform the same function.
b: they are both structural systems.
c:they are both transport systems.
d:they both involve the same organs
What is a nerve impulse?
Answer:
A signal transmitted along a nerve fiber. It consists of a wave of electrical depolarization that reverses the potential difference across the nerve cell membranes.
Explanation:
Answer:a signal transmitted along a nerve fiber. It consists of a wave of electrical depolarization that reverses the potential difference across the nerve cell membranes.
Explanation:
Very easy answer, I will give Brainliest! What is the name of this process? Click the picture above to view.
Answer: Not exactly sure of the specific name of the process, but the picture shows how the sun provides healthy sunlight with the ozone absorbing some of the radiation
Explanation:
Instructions:
You will need to create a blueprint to design your own Rube Goldberg device. Then, you will need to BUILD IT and complete each of the sections of the lab report (provided later). Your Rube Goldberg device design must include:
A task you are looking to accomplish at the end (ex: turning on a light, opening the fridge, etc)
at least 6 stages
at least four energy transformations to perform a simple task (ex: kinetic, potential, chemical energy, radiant energy, sound energy, electrical energy, thermal energy, magnetic, etc)
Part One: Draw It
If you draw your device, you will need to turn in your device design along with a written description of how each step works. You may choose to draw it freehand and scan or photograph the drawing, or you may use a computer program to digitally create your device. You can either write a description down in a box at each stage on the drawing OR submit the written descriptions separately. Insert below, if possible.
Answer:
There should be things online that can help you answer do this.
Answer:
o8iyh
Explanation:
15. Artificial Selection is also kinow as survival of the fittes! True or false
17. A place where two tectonic plates collide is called a ______ boundary and is often associated with _____ faults.
All of the following affect the climate of an area except
A. Proximity to a large body of water
B. Altitude above sea level
C. An extremely hot day
D. Distance from the equator
Answer:
I think it is b
Explanation:
please tell me if this is wrong
Answer:
not 100 but I'd say D I think I'm like 70%
name the nitrogenous Waste excreted by the following organisms;desert mole marine fish and tilapia
Answer:
Answer: Desert mole excretes concentrated urine with urea. Marine fish excretes urine with uric acid. Tilapia excretes dilute urine with amino acids.
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Desert mole excretes concentrated urine with urea. Marine fish excretes urine with uric acid. Tilapia excretes dilute urine with amino acids.
ThanksHope it helpsWhat is a reason for peer reriew?
A: to maintain scientific standards
B:to allow anyone to submit research
C:to ensure that science remains elitist
hi! please help i’ll give brainliest
Answer:
The settling out of particles that have been taken by erosion.
When in the cell cycle does DNA copy (replicate) itself?
How do the organ systems function together in the human body?
Answer:
Some body systems work together to complete a job. For example, the respiratory and circulatory systems work together to provide the body with oxygen and to rid the body of carbon dioxide. The lungs provide a place where oxygen can reach the blood and carbon dioxide can be removed from it. Some body systems share a common organ that performs more than one job.
How have some rainforest plants adapted to receive enough sunlight? O by growing poisonous flowers O by growing giant, slippery leaves O by growing giant, bright flowers O by growing long, deep roots
Answer:
Well, one type of adaptation might be for a vine, lets say grows high into the canopy. It benefits from growing high up, so it can get more sun than growing below. Growing poisonous flowers are a protection from animals eating the fruits that the plants grow.
Explanation: