. If lidocaine is injected before an arterial blood collection, wait ______ minutes for the anesthetic to begin working.
Answer:1 to 2
Explanation:
Ur welcome <3
Explain the relationship between an atom and an element
Answer:
A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom. ... All isotopes of a particular element have the same number of protons, but can have different numbers of neutrons.
Explanation:
The graph below shows the lung function of test subjects at three different ages who had exposure to ozone gas from the same source and location.
According to the graph, which statement best describes the effects of ozone on human health?
At 0.2 ppm, lung function is worse in subjects older than 20.
At 0.3 ppm, lung function is better in subjects older than 20.
Subjects at age 20 have higher lung function than subjects at age 33.
Subjects at age 27 have lower lung function than subjects at age 20.
Answer:
B
Explanation:
It's Pretty Easy To Know
At 0.3 ppm, lung function is better in subjects older than 20.
Ozone can cause the muscles in the airways to constrict, trapping air in the alveoli. This leads to wheezing and shortness of breath.What is the functions of ozone?The ozone layer acts as a shield for life on Earth. Ozone is good at trapping a type of radiation called ultraviolet radiation, or UV light, which can penetrate organisms protective layers, like skin, damaging DNA molecules in plants and animals.There are two major types of UV light: UVB and UVA.However high amount of ozone can cause is a feeling of irritation in the eyes, nose and throat. Some people may also experience respiratory or heart symptoms such as shortness of breath, chest pain, and wheezing.Hence, B option is correct.
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3. A mechanical weathering process in which tectonic forces lift deeply buried rocks upward and
then erosion removes overlying rock and sediment - the net result of which is to remove the
pressure from overlying materials causing the rock to expand and fracture.
O chemical weathering
O erosion
O pressure-release fracturing
O mechanical weathering
Match the phrase with the term.
a. How hard the blood pushes on the inside of the blood vessels is called: ___________ .
b. The total amount of blood the heart pumps in one minute is called : ___________.
c. When blood vessels open wider during exercise, they are said to : ___________ .
d. How many times your heart beats in one minute is called : ___________ .
e. The force that can put unhealthy tension on the heart as it is pumping is called : ___________.
f. The amount of blood the heart pumps out in one beat is called : ___________.
1. blood pressure
2. cardiac output
3. dilate
4. heart rate
5. blood pressure
6. stroke volume
How hard the blood pushes on the inside of the blood vessels is called? BLOOD PRESSURE
The total amount of blood the heart pumps in one minute is called ?
CARDIAC OUTPUT
When blood vessels open wider during exercise, they are said to ?
DILATE
How many times your heart beats in one minute is called ?
HEART RATE
The force that can put unhealthy tension on the heart as it is pumping is called ?
BLOOD PRESSURE
The amount of blood the heart pumps out in one beat is called?
STROKE VOLUME
Which of the below options DO NOT require energy to move across the membrane?
Answer:there is no options below send a picture and I can try to figure it out
Explanation:
The fur color of collared lemmings changes to white at a certain time of the year.
a. Explain how the change in fur color is an advantage to collared lemmings. When temperatures rise above freezing, snow melts, which causes changes in the collared lemmings’ habitat.
b. Describe two ways warming temperatures could cause the size of the collared lemming population to decrease.
c. Describe how fur color in the collared lemming population will likely change over time as temperatures increase because of climate change.
The change in fur color of collared lemmings is an advantage in the face of rising temperatures because their snow color will make them easily vulnerable to predators.
What is adaptation?The term adaptation refers to the morphological or physiological changes that an organism undergoes in order to survive efficiently in its environment.
The change in fur color of collared lemmings is an advantage in the face of rising temperatures because their snow color will make them easily vulnerable to predators when the snow eventually melts.
The rise in temperature will cause physiological changes in the the population of the collared lemmings which could reduce their population size. Also, predators can now access them more easily as they become more visible.
As time goes on, the snow color of the collared lemmings will eventually change as the animal will have to take on colors that will enable it to blend again with its new habitat and escape predators.
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The genotype of a person with blood type O negative is _________ for the ABO allele and __________ for the Rh factor allele.
Answer:
IiIi; Rh-Rh-
Explanation:
Which type of cell does the charger best model?
O A. Nerve cell, because it sends electrical signals
O B. Epithelial cell, because it covers surfaces of a body
O C. Guard cell, because it changes in size to open and close a hole
O D. Bone cell, because it is strong and stiff to provide support
Answer: A
Explanation: The nervous system sends electric signals from the brain to the body to make they move. The charger is similar becuase it sends energy to your devices so they can work.
if the food you eat is like a check atp is like
Answer:
energy
Explanation:
If the food you eat is like a check ATP molecules are like money (energy) for the body.
What is ATP?Adenosine triphosphate (ATP) is the main energy coin of the cell to carry out metabolic functions in an organism.
This molecule (ATP) is obtained from cellular respiration and/or photosynthesis.In conclusion, if the food you eat is like a check ATP molecules are like money (energy) for the body.
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what happens to photosynthesis in different colored lights?
which property of transposable elements allows them to contribute to the c-value paradox?
Answer:
Their copy number can increase from one generation to the next.
Can I get some help please
Answer:
3. Testes and ovaries
4. Vas deferens
5. Testosterone, estrogen, and progesterone
6. The sperm is released from the testes and is then passed through the epididymis, ductus deferens, ejaculatory duct, and then the urethra.
Explanation:
compare and contrast aerobic respiration, anaerobic respiration, and fermentation.
Answer:
Aerobic respiration is the type of cellular respiration that takes place in the presence of oxygen.
Anaerobic respiration is the type of cellular respiration that takes place in the absence of oxygen.
Fermentation is the process of chemical reaction in which sugar gets converted into carbon dioxide and ethanol induced by micro-organisms.
Explanation:
Aerobic respiration is found in all higher animals and plants.
Anaerobic respiration is found in micro-organisms but rarely in higher organisms.
Fermentation is found in bacteria and some other higher animals (muscle cells in humans).
Aerobic respiration take place in the cytoplasm (glycolysis) and mitochondria (Krebs cycle and electron transport chain).
Anaerobic respiration takes places only in the cytoplasm.
Fermentation belongs to the anaerobic respiration and it takes place in the cytoplasm only.
Aerobic respiration produces 36 ATPs per glucose molecule.
Anaerobic respiration produces 2 ATPs per glucose molecule.
Fermentation produces 2 ATPs per glucose molecule.
Aerobic respiration: carbon dioxide and water.
Anaerobic respiration: lactic acid in animals; carbon dioxide and ethanol in plants or yeast.
Which of the following best explains why what we know about cells is called a theory and not a law?
Question 11 options:
We do not have enough evidence yet to call cell theory a law.
We have not reviewed cell behavior enough yet to call it a law.
Cell theory explains cell behavior where a law would describe it.
Cell theory is still changing but may eventually become a law.
Answer:
I would say We don't have enough evidence or Cell theory is still changing.
Explanation:
There are so many cells in everything so it's almost impossible to know exactly what is going on. Theories about cells have been going on for over 500 years, and we still don't know exactly what is what.
Find the slope of the line shown on the graph to the right.
Answer:
2
Explanation:
Find the slope by counting rise/run from (-2,-6) to (1,0). 6/3 = 2.
1. ___________________ is used to sustain metabolic activities within the cells, and ________________ is produced as a result of these activities.
Answer:
oxygen, carbon dioxide
Explanation:
Explain why when you look at a leaf it appears to be green?
The leaf appears to be green because the plant leaf absorbs all the light rays of the sun except the green, and as the green is reflected back to the atmosphere, the plant leaf appears to be green.
What is the reason behind seeing different colors?Different colors are produced from the sun's light, so when the light is passed through the prism or through the water droplets, due to the scattering of lights, the colors are produced. As the plants' leaves have differing colors such as green, orange, little brown, etc., this is the result of the different photosynthetic pigments such as chlorophyll, xanthophyll, etc . The colors that are absorbed by these are not visible to the eyes, but those that are reflected back are seen.
Hence, the leaf appears to be green because the plant leaf absorbs all the light rays of the sun except the green, which is reflected back and is visible to the eye.
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oxidizing agents and reducing agents should be stored close to one another for safety.
Answer:
False
Explanation:
When segregating chemicals, acids should not be stored with bases, and oxidizers should not be stored with organic materials or reducing agents. Physical barriers and/or distance are effective for proper segregation.
What will be the economic and social consequences of this loss of biodiversity? Can anyone help please?
Answer:
economic consequences
Whilst human-made changes to ecosystems have often generated large economic gains, biodiversity loss damages the functioning of ecosystems and leads to a decline in essential services, which may have severe economic consequences, particularly in the longer term.
social consequences
Biodiversity loss can have significant direct human health impacts if ecosystem services are no longer adequate to meet social needs. Indirectly, changes in ecosystem services affect livelihoods, local migration and, on occasion, may even cause or exacerbate political conflict
Explanation:
I hope it helps you
10. The ATP made during glycolysis is generated by A. Substrate-level phosphorylation B. Electron transport C. Photo phosphorylation D. Chemiosmosis E. Oxidation of NAD and NADH
Answer:
A. Substrate-level phosphorylation
Explanation:
Hope it helps!
which of the four muscular chambers of the human heart directly propels blood into the pulmonary circulation?
Answer:
the right ventricle
Explanation:
right side pumps deoxygenated blood into the pulmonary circulation
The right ventricle is the muscular chamber of the human heart that directly propels blood into the pulmonary circulation.
What is circulation?The movement of blood through the body's vessels which is basically is brought about by the heart's pumping motion serves to transport nutrients and oxygen.
It occurs to all regions of the body and eliminate waste products from them.
Deoxygenated blood from the right atrium is used up by the right ventricle and pumped into the pulmonary artery, which then transports the blood to the lungs for oxygenation.
After being given oxygen, the blood travels back to the heart through the pulmonary veins, where it enters the left atrium before being pumped into the left ventricle for systemic circulation throughout the body.
Thus, the answer is right ventricle.
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A scientist uses radioactive dating to determine the age of a fossil and discovers that a hominid species may have existed much earlier in history than he thought. Which of the following would most likely increase the reliability of this finding?
Using radioactive dating to determine the age of similarly shaped fossils
Repeated analyses of the fossil finding it to be the same age each time
Using radioactive dating to find the age of fossils found in the same geographic location
Publication of his findings in different paleontology magazines
Answer:
scientists combine several well-tested techniques to find out the age of fossils. relative dating is when fossils and layers of rock are placed in order from older to younger, and radiometric dating allows the actual ages of certain type of rocks to be calculated.
Answer:
Repeated analyses of the fossil finding it to be the same age each time
Explanation:
i took the test and got it right :]
DNA sequences that are very similar to protein-encoding genes but are not translated are called ______, which may be remnants of old genes that once functioned in ancestors.
Answer: pseudogens
Explanation:
[WILL GIVE BRAINLIEST]
Which pair of body systems control and coordinate the cells that make up the organism?
A. Nervous & Endocrine
B. Digestive & Circulatory
C. Reproductive & Muscular
Answer:
The nervous system and the endocrine system
Explanation:
The nervous system and the endocrine system regulate and coordinate body functions by sharing in a unique partnership. Jointly they maintain growth, maturation, reproduction, metabolism and human behavior.
Answer:
Sorry I don't know.
Is this Science?
a 2 Which characteristic is unique to invertebrates?
A.
B.
C.
D.
Answer:
A
they are immobile, correct
They are immobile are the characteristic is unique to invertebrates.
What are Invertebrates?
Animals without a backbone or skeletal skeleton are known as invertebrates.
They come in a variety of sizes, from tiny mites and nearly invisible flies to enormous squid with eyes the size of soccer balls. There are millions more species to be discovered after 1.25 million have already been identified, the most of which are insects.
Invertebrates are successful in part because of how quickly they reproduce. For instance, corals and sponges both produce eggs and sperm. Social insects like ants and bees produce eggs that can become workers without needing to be fertilized.
Therefore, They are immobile are the characteristic is unique to invertebrates.
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How many different types of transport tissue do plants contain
Answer:
the answer is two types
Explanation:
hope this helps
Answer:
Plants have two different types of 'transport' tissue.
Explanation:
Xylem transports water and solutes from the roots to the leaves, phloem transports food from the leaves to the rest of the plant.
which statement about fermentation could be correct?
Answer:
Fermentation is the process in which a carbohydrate source is converted in the absence of oxygen
Questions
1.) Both strong acids and strong bases can be very dangerous and can give you a chemical
burn. Name a way that a strong bases may be more dangerous than a strong acid.
2.) Why might a person with reflux (indigestion) feel better after taking a Tums, Rolaid or similar
medicine?
3.) Name a common food that can cause "heartburn" due to the moderate to high pH?
Low
times more basic/alkaline than
4.) A substance with a pH of 12 is
a substance with a pH of 9?
5.) Salty ocean water has a higher pH than fresh water, due in part to the dissolved minerals
from coral, rocks and shells. If a child added lots of seashells to his
fresh water aquarium, give a reason why the fish might die?
Answer:
A =1
Explanation:
what is meant by the terms resolve in gel electrophoresis?
Gel resolution in gel electrophoresis simply means the degree of separation between the proteins and DNA of different molecular weights.
Gel electrophoresis simply means a laboratory method that is vital for the separation of mixtures of RNA, DNA, or proteins based on their molecular size.
It should be noted that in gel electrophoresis, the molecules that are to be separated are pushed with the aid of an electrical field through a gel that has small pores.
Gel resolution in gel electrophoresis depends on the cross-linking polymer which was used in making the gel and the other materials that provide the gel with the specific desired properties.
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