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?
a. The runner's muscles have accumulated lactic acid.
b. The runner’s body has failed to perform cellular respiration.
c. The runner’s cells are relying completely on aerobic respiration.
d. The runner’s muscles have accumulated carbon dioxide.
Answer:
The correct answer is A!
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After several miles of running and sprinting in intervals, the runner’s muscles ache and feel fatigued. The runner's muscles have accumulated lactic acid, this is best explanation.
what is the function of lactic acid ?Lactic acid is the component for the proper working of the body as It increases in concentration during exercise but does not cause muscle soreness.
Lactic acid is integral acid for different bodily function and is not solely a byproduct of exercise, has three main uses in the body:
It mainly involve in energy production mitochondria, act as a precursor for producing glucose and a signaling molecule
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Type your answer here.
Organ/Structure
Role in Nervous System
Are the cells that make up the nervous
system. They have three main parts—a
cell body, dendrites, and an axon. These
cells form networks and communicate
with each other via a type of chain
reaction.
central nervous system
Consists of all the nerves of the body. The
nerves take information and deliver
messages to and from this system
brain
Gets messages from the PNS to the brain
and directs messages from the brain to
the intended destinations along the proper
nerve pathways.
(Score for Question 2: of 5 points)
2. Distinguish between autotrophs and heterotrophs. Provide one example of each.
I have an experiment where I need to find out the Controlled Variable, Dependent Variable, and Independent Variable. In my experiment, I am using different temperatures of water, pieces of paper towels, paper clips. Please help!
Answer:
controlled variables=paper clips
independent variables=different temp of water
dependant pieces of paper towel
Explanation:
Have a nice day
Based on the information in the graph, what is the best conclusion to draw
about Africa?
World Population Growth
20,000
10,000
World
5,000
Asia
2,000
Africa
1,000
Europe
WANIA
500
200
100
United States,
Canada, and Greenland
Mexico,
Central America, Caribbean Islands,
and South America
Oceania (Australia and
nearby islands in the Pacific)
50
20
10
1950
1960
1970
A. The fertility rate is very low.
1980
1990
2000
2010
2020
2030
2040
2050
B. It has reached its carrying capacity.
C. The birthrate is higher than the death rate.
oc
D. It has few resources.
The correct answer is C. The birthrate is higher than the death rate.
Explanation
The graph is about the growth of the world population, this shows the population growth of the world, Asia, Africa, Europe, United States, Canada and Greenland, Mexico, Central America, Caribbean Islands, and South America, and Oceania (Australia and nearby islands in the Pacific). This graph covers the time from 1950 to 2050 divided into decades. In the specific case of Africa in 1950 it had a population of close to 300 million people. Subsequently, in 2010 the population of Africa was close to 1 billion people and the projection for the year 2050 is 2 billion people. According to this, it can be concluded that the birth rate is higher than the death rate because the population has a growth trend, which indicates that more people are born than die.
Which of the following breaks food down into energy that the body can then use? OA. Enzymes OB. Hormones OC. Lymphocytes OD. Neurons
Answer:
Enzymes
Explanation:
Enzymes are proteins that act as biological catalysts, which speed up chemical reactions, to help support life. These enzymes help to perform important tasks such as breaking foods down into energy that the body can use.
Hope this helps :)
Hi,
Which of the following breaks food down into energy that the body can then use?
Answer:
OA. Enzymes
----------------------------------------------------------------------------
- Hormones regulates our Body ;
- Lympocytes are form of White blood cells ;
- Neurons make up our whole nervous system.
When glucose is unavailable, the liver begins to break down fatty acids to supply the rest of the body with metabolic fuel. Explain why fatty acid-derived acetyl-CoA is not catabolized by the citric acid cycle but is instead diverted to ketogenesis when no glucose is available.
Answer:
Fatty acid degradation produces acetyl-CoA
When carbohydrate concentrations drop, any available oxaloacetate is diverted to gluconeogenesis to produce the glucose necessary for red blood cell and brain function. If acetyl-CoA cannot enter the citric acid cycle (and acetyl-CoA cannot be converted to pyruvate in mammals), it is converted to ketone bodies.
Genetic diversity is associated with asexual reproduction.
True
False
Answer:
i think its false
Explanation:
Answer:
in asexual reproduction you do not really get genetic diversity, therefore this is false.
Question 7
Another element in the group of alkali metals is lithium (Li). It reacts with water to form lithium
hydroxide (LiOH) and hydrogen gas. Choose the correct balanced chemical equation for this reaction
from the following three options and explain what's wrong with the other two.
1. Li (St H20 (1) — LiOH2 (aq)
2. Li (s) + H20 (1) ► LiOH (aq) + H2 (g)
3. 2Li (s) + 2H20 (1) ► 2LiOH (aq) + H2 (g)
Class Discussion
Answer: 3 2Li (s) + 2H20 (1) ► 2LiOH (aq) + H2 (g)
Explanation: i think thats the answer :/
How can evidence from an experiment be explained in relationship to the hypothesis?
• as a prediction
• as a question
• as an inference
• as a conclusion
Answer:
As a conclusion
Explanation:
A hypothesis is a tentative statement about the relationship between two or more variables. It is a specific, testable prediction about what you expect to happen in a study. A hypothesis is a prediction based on the theory being tested. The evidence can support the Hypothesis or invalidate the Hypothesis.
Answer:
A conclusion
Explanation:
It sums up everything that you did
What happens if a cell goes through metastasis?
Answer:
In metastasis, cancer cells break away from where they first formed (primary cancer), travel through the blood or lymph system, and form new tumors (metastatic tumors) in other parts of the body. The metastatic tumor is the same type of cancer as the primary tumor.
Please list answers below!
8. B, 10 Million
9. A, 8 minutes
The exchange of genetic materials between homologous chromosomes is called
a. synapsis
b. chiasmata
c. crossing over
d. cytokinesis
Answer:
c is correct answer ......
A 2 kg ball has 100 J worth of GPE. How high must it be above the ground?
A. 10 m
B. 5 m
C. 20 m
D. 2 m
The word kinetic comes from which Greek word?
A. Kinestasis
B. Kinesis
C. Kinedum
D. Kinematics
What is a measure between the difference in start and end positions?
A. Speed
B. Displacement
C. Distance
D. Length
What is an object called that orbits another object?
A. satellite
B. robot
C. drone
D. lander
In Fig. 2-1, what is the velocity at t = 1.0 s?
A. 0 m/s
B. -40 m/s
C. 10 m/s
D. 20 m/s
If a car's acceleration suddenly triples, what happens to the force on the car?
A. Decreases by 3
B. Triples
C. Stays the same
D. It goes down
A toy car has a mass of 2 kg and a speed of 6 m/s. How much kinetic energy does it have?
A. 48 J
B. 42 J
C. 36 J
D. 30 J
In Fig. 2-2, what is the average acceleration from 0 to 5.0 s?
A. 0
B. 10 m/s2
C. -2.0 m/s2
D. 2.0 m/s2
An object is moving with constant non-zero velocity on the +x axis. The position versus time graph of this object is
A. a vertical straight line.
B. a straight line making an angle with the time axis.
C. a parabolic curve.
D. a horizontal straight line.
A train can travel at 200 mph. How long will it take you to get to Chicago if it is 1800 miles away?
A. 9 hours
B. 12 hours
C. 6 hours
D. 15 hours
Friction is measured in what units?
A. kg
B. m/s
C. N
D. J
How many times will a skydiver reach terminal velocity before landing on the ground?
A. 2
B. 3
C. 1
D. 0
What is a measure of how far an object moves in a given time?
A. Distance
B. Time
C. Speed
D. Acceleration
Velocity is defined as ________ with a direction.
A. Speed
B. Velocity
C. Distance
D. Displacement
A toy mouse has a mass of 10 kg and kinetic energy of 5 J. What is its speed?
A. 1 m/s
B. 5 m/s
C. 4 m/s
D. 2 m/s
The word kinetic comes from the Greek word Kinetikos, which means motion.
1) GPE = 100 J
mgh = 100
Therefore, height above the ground,
h = 100/mg = 100/(2 x 9.8)
h = 5.1 m
2) The word kinetic comes from the Greek word Kinetikos, which means motion.
3) Displacement is the measure between the difference in start and end positions.
4) Satellite is an object called that orbits another object.
5) v = s/t
v = 10/1v = 10 m/s
6) According to Newton's second law, F ∝ a. So, when the car's acceleration triples, the force on the car also triples.
7) Kinetic energy, KE = 1/2mv²
KE = 1/2 x 2 x 6²
KE = 36 J
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Consider the formula for glucose C6H 1206 .in the process of photosynthesis what supplies the hydrogen used in the formation of glucose
Answer:
Explanation:
H2o
Briefly explain why exponential growth within a population cannot last forever.
Answer:
It will eventually become unsustainable because of factors like food, water, space, etc.
Explanation:
exponential growth may occur in environment where there are few individuals and plentiful resources open the number of individual becomes large enough resources will speed depleting slowing the growth rate
What is the best description of connective tissue? Question 3 options: All of its cells rest on a basal lamina. All of its cells associate via cadherins in their plasma membrane. All of its cells are electrically connected via gap junctions. All of its cells are sparsely distributed in the extracellular matrix.
Answer:
Connective tissue is a group of tissues in the body that keep the body and its organs in shape while also providing cohesion and internal support.
All of its cells exist sparsely distributed in the extracellular matrix is the best description of connective tissue.
What is connective tissue?
Tissue that sustains, protects and provides structure to other tissues and organs in the body. Connective tissue also stores fat, permits the movement of nutrients and other substances between tissues and organs, and allows the repair of damaged tissue. Connective tissue exists created up of cells, fibers, and a gel-like substance.
Connective tissue is discovered in between other tissues everywhere in the body, including the nervous system. The three outer membranes (the meninges) that surround the brain and spinal cord exist composed of dense inert connective tissue.
Connective tissues bind systems together, form a framework and support for organs and the body as a whole, store fat, transport substances, defend against disease, and assist restoration of tissue damage.
Hence, All of its cells exist sparsely distributed in the extracellular matrix is the best description of connective tissue.
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In Florida, the building collapsed so far away that there was a cordon and no one was allowed to go near and police were standing guard. Is it weird that this kind of accident rescue doesn't let people get close?
What is one condition that must be met for a population to be in genetic equilibrium?
Answer:
Hardy-Weinberg equilibrium
Explanation:
In order for the population's gene pool frequencies to remain constant, the Hardy-Weinberg equilibrium must be met. Random mating, no mutation, migration, or natural selection must all be present, as well as a big sample size.
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Using a simple aproxamation above,calculate the volume of the right circular cylinder with a radius of 2 meters and a height of 9 m
Answer:
Volume = 113.112 m³
Explanation:
Given the following data;
Radius = 2 meters
Height = 9 meters
To find the volume of a right circular cylinder;
The volume of a right circular cylinder is calculated by multiplying the area of its circular base with the height of the cylinder.
Mathematically, the volume of a right circular cylinder is given by the formula;
Volume= πr²h
Where;
r is the radius of the circular base.
h is the height of the cylinder.
Substituting the values into the formula, we have;
Volume = 3.142 * (2)² * 9
Volume = 3.142 * 4 * 9
Volume = 113.112 m³
Suppose you traveled back in time and located the first animals to have evolved feathers. You found that these animals were tree-dwelling ectotherms, able to run quickly but unable to fly. You also noticed that only males had feathers. Which hypothesis of feather evolution would these data most support? Feathers initially evolved in a role associated with ________.
Answer:
Feathers initially evolved in a role associated with sexual selection.
Explanation:
In species where only males had feathers, these feathers can be considered to have evolved into a role associated with sexual selection. This is because in these species, males used their feathers as a sexual attraction for females, in this case, females chose the males that had more attractive feathers to mate and generate new individuals for the species. An example of this can be seen in the peacock, where the tail with lush feathers is only present in males and is intended to sexually attract females.
What is one of the causes of mechanical weathering?
A. acid rain
B. oxidation
C. animal actions
D. carbon dioxide
C. animal actions
Others are chemical examples.
Name the 5 systems of the human body.
Answer:
Skeletal System
Muscular System
Circulatory System
Endocrine System
Digestive System
are systems of the Human Body
Explanation:
Answer:
Digestive system
Circulatory system
Respiratory system
Nervous system
Skeletal system
Methods of COAGULATION?
Answer:
There are a number of different methods employed including clot-based coagulation tests, chromogenic assays, immunological tests, and aggregation studies. Today automated machines are designed to be able to perform a number of different methodologies.
Explanation:
There are number of different methods
Phosphates have been banned in most dishwashing detergents in order to
protect the environment. Why were phosphates removed from dishwasher
detergents?
A. Because they buffer cells from extremes in pH
B. Because they increase the acidity of water and cause acid rain
C. Because they increase the salinity of water and pollute drinking
water
D. Because they cause algal blooms that starve fish of oxygen
Answer:
Option D
Explanation:
Seventeen states banned phosphates from dishwasher detergents because the chemical compounds also pollute lakes, bays and streams. They create algae blooms and starve fish of oxygen. ... It just wasn't feasible to make detergent with phosphates for some states and without them for others
The many volcanoes located along the edge of the Pacific Ocean make up the Ring of Fire. How does subduction play a role in the volcanic activity in the Ring of Fire?
Answer:
The Ring of Fire contains approximately 850–1,000 volcanoes that have been active during the last 11,700 years (about two-thirds of the world's total). The four largest volcanic eruptions on Earth in the last 11,700 years occurred at volcanoes in the Ring of Fire.
Explanation:
Answer:
It helps move the lava in the volcano beneath the earth's crust
Explanation:the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate
what is the purpose of ethical guidelines for the handling of experimental subjects
Answer:
The purpose of ethical guidelines for handling of experimental subjects is to ensure the safety and well-being of all living creatures in an experiment. Ethical guidelines include issues such as human rights, animal welfare, safety compliance with the law, conflicts of interest, health standards.
The organisms native to an area will impact the types of soil found in that area.
Please select the best answer from the choices provided
T
F
HELP ASAP
In humans, one function of an inter neuron is to relay impulse directly from …
Answer:
D
Explanation:
the interneuron is located in the central nervous system between the sensory neuron and the motor neuron, therefore it relays impulses from the sensory neuron to the motor neuron
I hope this helps
⇒ What is ethnobiology?
Answer:
Ethnobiology is the scientific study of dynamic relationships among peoples, biota, and environments. ... The diversity of perspectives in ethnobiology is our greatest strength.
it is the scientific study if dynamic relationship between people,biota and environment
what is the prediction of the outcome.genetic crosses between various organisms
Answer:
The results of genetic crosses can be predicted using a chart called a Punnett square. In a Punnett square, the possible male and female gametes of each parent are written across the side and top of the square. The interior squares represent every possible combination of gametes that could combine to form a zygote.
Explanation:
To fill in the square, look at the alleles of the games on the outside edges and bring them across and down to fill in the center of the square. If the offspring is heterozygous, we will write the capital letter in front of the lower case letter.
In the example below T=tall plants and t= short.
