Answer:
chloroplasts!!!!!
How do tonsils protect the body?
by secreting hormones
by producing red blood cells
by excreting toxins
by trapping harmful substances
Hurry
The orderly arrangement of organisms into a hierarchy of taxa is called _____. a. biotechnology b. classification c. experimentation d. nomenclature e. identification
The orderly arrangement of organisms into a hierarchy of taxa is called classification. The study of classification is called taxonomy.
Classification is the orderly arrangement of organisms into a hierarchy of taxa. The study of classification is called taxonomy. Taxonomy aids in the identification, nomenclature, and grouping of living organisms based on their similarities and differences. Biotechnology involves the use of living organisms to develop or make products and is not related to the orderly arrangement of organisms into a hierarchy of taxa.
Experimentation is the testing of an idea or hypothesis through an experiment. Nomenclature is the system of naming organisms, while identification is the process of recognizing and naming an individual organism based on its characteristics.
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Which of the following is not a symptom of desertification?
A) decrease in salt content of the soil
B) lowering of the water table
C) reduced surface water
D) increased soil erosion
E) loss of native vegetation
Answer:
A
Explanation:
Effects of salts on plants As soils become more saline, plants become unable to
Because it includes the body's external barriers and cellular and chemical mechanisms that add general protection against pathogens, _____ immunity is also referred to as nonspecific immunity.
Because it includes the body's external barriers and cellular and chemical mechanisms that add general protection against pathogens, innate immunity is also referred to as nonspecific immunity.
Nonspecific immunity, or innate immunity, is the first line of defense in the body's immune system. It includes various components that provide general protection against pathogens without targeting specific antigens. Nonspecific immunity acts as a rapid and immediate response to invading pathogens.
The term "nonspecific" refers to the fact that innate immunity does not differentiate between different types of pathogens. It is a broad defense mechanism that offers protection against a wide range of pathogens, regardless of their specific characteristics. Examples of nonspecific immune responses include physical barriers like the skin and mucous membranes, as well as cellular mechanisms like phagocytosis, inflammation, and the release of antimicrobial proteins.
Unlike specific immunity, which involves the production of antibodies and targeted immune response against specific pathogens, nonspecific immunity provides a general level of protection that is always present and ready to respond to any potential threat. This type of immunity is considered the body's first line of defense and plays a crucial role in preventing the entry and spread of pathogens throughout the body.
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Adult female monkeys from one population breed with male monkeys of a nearby population. The introduction of new alleles into the first population's gene pool is an example of
Answer:
The introduction of new alleles into the gene pool of the first population, from another population, is an example of gene flow.
Explanation:
In population genetics, gene flow consists of the passage or transfer of gene alleles between populations, a process that is related to the migratory dynamics of a population.
When gene flow occurs, a population can gain new genetic material or lose it, which is reflected in traits or characteristics of that population.
If an adult monkey interbreeds with an adult monkey from another population there will be a gene flow that will probably introduce specific trait information into the gene pool of their respective populations.
Why do scientists know very little about life in the Precambrian eon? (1 point) There was no life on Earth during that eon. There are few fossils from that time. All of these forms of life are now extinct. The eon started with a mass extinction
WILL MARK. BRAINLEYEST
Scientists have very little knowledge about the Precambrian eon because there are very few fossils from that time.
The Eon in the Precambrian means "before the Cambrian era." It is used to define the entire period of the Earth's history which existed before the discovery of the oldest rocks which have identifiable fossils in them.
The organisms which existed during the Pre-Cambrian eon were basically soft-bodied and therefore there very few animals of that time which had bones, skeletons, or hard shells and so an existence of very less number of fossils have been found from that time. The time period was so long ago that the natural activity on earth like subduction of continental plates, volcanic action, erosion, etc. washed out the most of what was then the Earth's crust.
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Leah, LaRenda, and Gabi decide to test what factors influence water
absorption by an egg. They remove the shell from 3 eggs by dissolving
them in vinegar. They create three different water solutions. One is pure,
100% distilled water, a second is 50% water/50% corn syrup, and the third
is 100% corn syrup. The mass of each egg is measured before they are put
into a single solution for 24 hours. The mass of the eggs is then measured,
and the data recorded below: Based on the data this group gathered, the
most appropriate hypothesis would be
Answer:
how long well that take
In this experiment, the independent variable they are testing is the type of solution in which the egg is placed.
What is the independent variable?In the data, the independent variables are the factors that do not depend upon the other factors, on the other hand, dependent variables depend on independent variables.
In the experiment they used three different solutions ate three different water solutions. One is pure, 100% distilled water, a second is 50% water and 50% corn syrup, and the third is 100% corn syrup, all are three independent solutions.
The independent variable is the cause which does not depend on any other factor in your study, all the solutions are different mixtures creating different variables.
Therefore, the solutions used for eggs are the independent variable.
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The given question is incomplete, so the most probably the complete question is,
Leah, LaRenda, and Gabi decide to test what factors influence water absorption by an egg. They remove the shell from 3 eggs by dissolving them in vinegar. They create three different water solutions. One is pure, 100% distilled water, a second is 50% water/50% corn syrup, and the third is 100% corn syrup. The mass of each egg is measured before they are put into a single solution for 24 hours. The mass of the eggs is then measured, and the data is recorded below:
In this experiment, the independent variable they are testing is?
How do you treat thigh muscle pain?
You can treat thigh muscle pain by lying on your back, and lifting one leg toward your chest to stretch the back of your thigh. Behind your knee, place your hands.
It is essential to regain movement and strength following any thigh problem. This will assist you in getting back in shape and supports tissue healing. It's possible that you won't be able to get back to your usual exercise routine right away, and progress may be slow at first. You should feel a stretch in the back of your sore thigh as you gently pull your leg closer to your chest. Return your leg to the bed after holding it for up to ten seconds.
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The cells of muscles, myocytes, develop from ________. a. myoblasts b. endoderm c. fibrocytes d. chondrocytes
Which series of numbers is best to use when testing for nasal emission? a. 50sb. 60s c. 70s d. 80s e. 90s
When testing for nasal emission, it is best to use a series of numbers that require a lot of oral airflows. The most commonly used series of numbers for this purpose is the "60s." Therefore, the right answer is B.
This series requires the speaker to produce a lot of oral airflows, which in turn makes it easier to detect any nasal air escape.
However, some clinicians may prefer to use other series of numbers, such as the "50s" or "70s," depending on the individual needs of their patient.
Ultimately, the choice of series of numbers will depend on the clinician's experience, the patient's abilities, and the specific goals of the assessment.
It is important to use a consistent series of numbers for repeat assessments and to document which series was used for each assessment. Hence, the right answer is B) 60.
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How does the structure of the earth affect plate tectonics
Answer:
Slab pull occurs where older, denser tectonic plates sink into the mantle. As these older sections of plates sink, newer and less dense sections of plate are pulled along behind. Sinking in one place leads to plates spreading apart in other places. Earthquakes and volcanoes are primarily found at plate boundaries .
hope I helped:>
which landform can be created by wind
Answer:
Aeolian landforms
Explanation:
It is the landform created by wind and named for the Greek God of wind 'Aeolus'.
Which of the following is the most accurate count of biodiversity in an area?
True census
Sample census
Species-area effect
Population density
True census is the most accurate count of biodiversity in an area, hence option A is correct.
What is biodiversity?Low biodiversity suggests that an area only supports a few species, whereas high biodiversity indicates that a region supports a large variety of species.
Although the causes of variations in biodiversity are numerous and multifaceted, they involve both natural and artificial factors.
A common way to measure biodiversity is the number of species present in a specific area, be it a single tree, an ecosystem, a landscape or region, or the entire globe.
However, there are various techniques to gauge biodiversity. The overall diversity of genes within a single species is referred to as genetic diversity.
The biodiversity index is a mathematical formula that scientists use to quantify the variety of species present in a region.
Therefore, option A is correct.
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true/false: heart rate will have a tendency to be approximately 15-20 bpm higher in the water than on land. qizlet
Heart rate will have a tendency to be approximately 15-20 bpm higher in the water than on land is false.
Goal heart rates in deep water are approximately 17 beats per minute lower than on land because a smaller portion of the body is exposed to the hydrostatic pressure of the water. One factor that affects the precise number of beats per minute is a person's degree of fitness.
A variety of changes in the cardiovascular system were brought on by drinking water, including an increase in total peripheral resistance, a decrease in heart rate, as well as improvements in cardiac interval variability and cardiovagal baroreflex sensitivity.
Because the heart rate slows, the stroke volume rises, and the body temperature drops while submerged in cold water, the cardiac output resembles that of thermoneutral water. On the other side, cardiovascular output is often decreased.
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Which is a characteristic that distinguishes members of the
plant kingdom from members of the animal kingdom?
Select one:
A. Plants store genetic information in the nucleus of their cells
B. Plants are motile primary consumers
C. Plants are multicelular
D. Plants are autotrophic
Answer:
D. Plants are autotrophic
Explanation:
Both plants and animals are eukaryotic, meaning they contain a nucleus with genetic information, so that crosses out A. I don't know what motile primary consumers are. Assuming, they're primary consumers, primary consumers are those that eat producers, so in this case, this would elminate B. Both plants and animals are multicellular. Plants ARE autotrophic, meaning they produce their own food. Animals, however, have to get their own food, either by hunting or scavaging.Which statement below correctly summarizes cellular respiration?
A Using oxygen, cells absorb sunlight and produce glucose.
B ATP is produced in the mitochondria in the absence of oxygen.
C Water is absorbed by the mitochondria, the water is split up into hydrogen and oxygen atoms, and ATP is made.
D Cellular respiration begins with glucose. With the addition of oxygen, energy is made in the form of ATP.
Answer:
D
Explanation:
It all begins with glucose.
During which phase of mitosis do the chromosomes pull away from the middle of the cell?
In Anaphase of mitosis chromosomes pull away from the middle of the cell.
During this period the replicated chromosomes are split and moved to the opposite poles of the cells.What is mitosis?It is the process by which cell replicates its chromosomes and then segregates them, producing two identical nuclei in preparation for cell division.
What are chromosomes?It is along DNA molecule with part or all of the genetic material of an organisms.
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Which type of molecule transfers information from the nucleus to the cytoplasm in the eukaryotic cell
Answer:
The RNA molecule transfers information from the nucleus to the cytoplasm in the eukaryotic cell through transcription and translation.
Explanation:
The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm.
Determine whether human and chimpanzee mitochondrial DNA sequences have equal evolutionary rates between lineages. To do this, use Tajima’s relative rate test as implemented in MEGA. (1) Obtain MEGA software. (2) Obtain mitochondrial DNA sequences from human, chimpanzee, bonobo, orangutan, gorilla, and gibbon (3) Apply Tajima’s test using an appropriate outgroup. Is the probability value significant (< 0.05)? Include pictures of everything if possible
Tajima's relative rate test is used to compare the evolutionary rates between different lineages by analyzing the divergence of DNA sequences.
To determine whether human and chimpanzee mitochondrial DNA sequences have equal evolutionary rates between lineages, Tajima's relative rate test can be applied using MEGA software.
The steps involved are as follows:
Obtain MEGA software: Download and install MEGA software, which is a widely used tool for molecular evolutionary analysis.
Obtain mitochondrial DNA sequences: Collect mitochondrial DNA sequences from human, chimpanzee, bonobo, orangutan, gorilla, and gibbon. These sequences can be obtained from databases or through relevant research studies.
Apply Tajima's test with an appropriate outgroup: Use MEGA software to perform Tajima's relative rate test. Select an appropriate outgroup, which could be a closely related species or a known reference sequence.
Analyze the results: The output of Tajima's test will include statistical measures such as probability values. Check if the probability value is significant (less than 0.05). If the probability value is below the significance threshold, it indicates that the evolutionary rates between human and chimpanzee mitochondrial DNA sequences are significantly different.
In conclusion, by applying Tajima's relative rate test using MEGA software and appropriate mitochondrial DNA sequences, one can determine the significance of the evolutionary rate differences between human and chimpanzee lineages.
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There are more hydrogen bonds at the surface of water creating a film.
Therefore, water has a high surface tension.
A. True
B. False
Answer:
i think si true i think no sure
The substance that has the greatest influence on the coordination of the events of the postabsorptive phase of metabolism is ____
Answer:
glucagon
Explanation:
Find the heat released in cooling 10g of water at 100C down to 25C
]To calculate the amount of heat entering or leaving a system, the equation
Q
=
m
c
Δ
T
is used.
Explanation:
m = mass (in grams)
c = specific heat capacity (J/g°C)
ΔT = change in temperature (°C)
Here, we will use the specific heat capacity for liquid water which is 4.19 J/g°C.
The mass given is 25.0 grams.
As for the change in temperature, I will assume that it start off at room temperature, 25°C.
25
°
C
−
0
°
C
=
25
°
C
Q
=
m
c
Δ
T
Q
=
25
g
r
a
m
s
⋅
4.19
J
g
°
C
⋅
25
°
C
Q
=
2618.75
J
Take into account significant figures and the answer should be
2.6
⋅
10
3
J
Answer link
HELP PLEASE
If your immune system can’t actually stop you from getting ill, then why is it beneficial? Why do you think it evolved to work this way, instead of simply stopping every infection in its tracks?
Answer:
Your immune system fights off infection and disease. It has a number of ways to detect and destroy anything it recognizes as foreign to your body, including bacteria, viruses, fungi, parasites or unhealthy cells such as cancer cells. In some people, the immune system goes into overdrive, causing the body to see its own cells as foreign and attack them. This leads to what we call autoimmune diseases, such as Crohn’s disease, rheumatoid arthritis and lupus.
Explanation:
The structure that allows equalization of the pressure in the middle ear with that outside the body is the external auditory meatus.
a. True b. False
False. The structure that allows equalization of the pressure in the middle ear with that outside the body is the Eustachian tube. The external auditory meatus, also known as the ear canal, is a passage that leads to the middle ear. It is responsible for transmitting sound waves from the outer ear to the eardrum. However, it does not play a role in equalizing pressure in the middle ear. The Eustachian tube, on the other hand, is a small tube that connects the middle ear to the back of the throat. It helps regulate pressure in the middle ear by opening and closing to allow air to enter or exit the middle ear. This process is important for maintaining optimal hearing and preventing discomfort or pain in the ears due to changes in air pressure.
b. False
The structure that allows equalization of pressure in the middle ear with that outside the body is not the external auditory meatus, but rather the Eustachian tube (also known as the auditory tube or pharyngotympanic tube). The Eustachian tube connects the middle ear to the nasopharynx, which is the upper part of the throat behind the nose. This tube helps to maintain equal air pressure on both sides of the eardrum, which is crucial for normal hearing and preventing damage to the ear. The external auditory meatus, on the other hand, is the outer portion of the ear canal that leads from the outer ear to the eardrum. While it does play a role in conducting sound to the eardrum, it is not involved in pressure equalization.
B = Short b = Tall P = Mean p = Nice Look at the dihybrid punnett square carefully. How many of the offsprings are both tall and mean?
A) 4 out of 16
B) 8 out of 16
C) 3 out of 16
D) 12 out of 16
Answer:
4 out of 16
Explanation:
What is the least amount of energy transferred In a food web
Write a Claim about how shared resources can be depleted and how to sustainably manage them
Shared resources can be depleted when used excessively and selfishly for one's interest only. For their sustainable management, the understanding should be inculcated that they are in limited quantities and hence should be used only when necessary and in required quantities.
Shared resources are those that are used by various individuals and populations at the same time. Due to their necessity they are in limited quantities and hence their efficient use is very essential. The examples of shared resources are fresh water bodies, grazing lands, forests, etc.
Sustainable management is the balanced use of resources so that they do not get depleted and are available for the use of the individuals.
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What are the levels of the energy pyramid called?
Answer:
Trophic level
Explanation:
A trophic pyramid shows where most of the energy in an ecosystem can be found. Each level is called a trophic level and as you move up trophic levels 90% of the energy is lost.
PLS MARK BRAINLIEST
A student performed a lab investigation to determine the effect of temperature on the heart rate of a water flea. What is the independent variable in the investigation? * o specie of flea O temperature O heart rate N O size of flea answer
Answer:
B. Temperature
Explanation:
The heart rate depends on the temperature so the heart rate is dependant and the one that changes is independant
What happens during the reduction stage of Calvin cycle?
Answer:
Energy from ATP and electrons from NADPH are used to reduce 3-phosphoglycerate to form G3P molecules (which can be used to form other organic molecules such as glucose).