Which macromolecule matches this statement: "I am often used as natural insulation for the body"?
Lipid
Carbohydrate
Protein
Nucleic Acid
Answers
Related Questions
Kai cuts his hand while making dinner. A couple of days later, his hand is swollen and infected. Which body system most likely failed?
Grupo de elecciones de respuesta
Respiratory
Immune
Digestive
Excretory
Answers
Answer:
Immune
Explanation:
The immune system is the one that is supposed to not let the bacteria get in. Pls, Mark me the brainiest.
It can be inferred from the passage that which one of the following experimental results would suggest that bacteria detect changes in the concentration of an attractant by measuring its concentration in front and back of the cell body simultaneously?
(A) When suddenly transferred from a medium in which the concentration of an attractant was uniformly low to one in which the concentration was uniformly high, the tendency of the bacteria to tumble and undergo random changes in direction increased.
(B) When suddenly transferred from a medium in which the concentration of an attractant was uniformly low to one in which the concentration was uniformly high, the bacteria’s exhibited no change in the pattern of their motion.
(C) When suddenly transferred from a medium in which the concentration of an attractant was uniformly low to one in which the concentration was uniformly high, the bacteria’s movement was characterized by a complete absence of tumbling.
(D) When placed in a medium in which the concentration of an attractant was in some areas low and in others high, the bacteria exhibited an increased tendency to tumble in those areas where the concentration of the attractant was high.
(E) When suddenly transferred from a medium in which the concentration of an attractant was uniformly low to one that was completely free of attractants, the bacteria exhibited a tendency to suppress tumbling and move in longer, straighter lines.
Answers
When placed in a medium in which the concentration of an attractant was in some areas low and in others high, the bacteria exhibited an increased tendency to tumble in those areas where the concentration of the attractant was high. Hence option D is correct.
The experimental result that would suggest that bacteria detect changes in the concentration of an attractant by measuring its concentration in front and back of the cell body simultaneously is (D) When placed in a medium in which the concentration of an attractant was in some areas low and in others high, the bacteria exhibited an increased tendency to tumble in those areas where the concentration of the attractant was high.
This result suggests that the bacteria are able to detect changes in attractant concentration and respond accordingly by increasing tumbling in high attractant areas to sample their surroundings more thoroughly.
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Rabbits are very popular domesticated animals, so popular that there are over 300 breeds of domesticated rabbits in the world. You attend a rabbit show and notice that all of the breeds vary in many characteristics, such as size, color, and fur length. You notice that there is weight information on the cages of all rabbit individuals at the show and decide to jot down data for two specific rabbit breeds (in pounds):
Breed A: 10, 8, 7, 10, 9, 9, 10, 9
Breed B: 10, 12, 14, 13, 10, 15, 11, 12
In three to five sentences, 1) calculate the average weights of the two rabbit breed groups, 2) describe some factors that could contribute to the different weights seen within breeds, and 3) describe how you would track and find the growth rate of the two rabbit breeds during an investigation.
Answers
Answer:
Average of breed a: 9 pounds, average of breed b: 12.125
Explanation:
10+8+7+10+9+9+10+9 = 72
72/8 = 9 pounds
10+12+14+13+10+15+11+12 = 97
97/8 = 12.125 pounds
okay thanks but who guessed I don't wanna fail please just tell me the truth ill do anything if your right
Answers
Answer:
A
Explanation:
Hope this helps.
what is composed of thousands of genes coiled tightly together within the nucleus?
Answers
Answer:
chromosomes
hope this helps :)
What is the main function of carbohydrates?
Group of answer choices
contain genetic information
energy source
energy storage
insulation
Answers
Answer:
energy source
Explanation:
carbohydrates are one of the three macronutrients in our diet with their main function being to provide energy to the body.
Answer:
energy source because in 1 carbohydrate it contains 4 calories
Vibrio vulnificus is particularly pathogenic because this strain of bacteria hides its surface molecules behind a polysaccharide coat, which prevents interactions with pattern recognition receptors (PRRs) on phagocytic cells. Draw a flow chart that illustrate how antibodies could be employed to eliminate this bacteria in the absence of complement proteins.
Answers
Vibrio vulnificus is a particularly pathogenic strain of bacteria due to its ability to hide its surface molecules behind a polysaccharide coat. This prevents interactions with pattern recognition receptors (PRRs) on phagocytic cells, which can make it difficult for the immune system to recognize and eliminate the bacteria.
However, antibodies can be employed to target and eliminate Vibrio vulnificus even in the absence of complement proteins. The following flow chart illustrates how this process could work:
1. Antibodies bind to surface molecules on Vibrio vulnificus.
2. The antibodies mark the bacteria for destruction by immune cells.
3. Phagocytic cells recognize the marked bacteria and engulf them.
4. The engulfed bacteria are destroyed by lysosomal enzymes within the phagocytic cells.
This process is known as antibody-mediated phagocytosis and is an important mechanism for eliminating pathogenic bacteria. By targeting surface molecules on Vibrio vulnificus, antibodies can help the immune system overcome the challenge posed by the polysaccharide coat and eliminate the bacteria.
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what would happen to a moss sporophyte of the gametophyte that produces it died
Answers
If the gametophyte of a moss dies, the sporophyte it produced will also die. The sporophyte is dependent on the gametophyte for nutrition and support, as it remains attached to it throughout its entire life cycle.
The gametophyte of a moss produces the sporophyte through the process of fertilization. The sporophyte remains attached to the gametophyte and receives nutrients from it through a specialized structure called the foot. The sporophyte also depends on the gametophyte for support, as it lacks the ability to produce its own food through photosynthesis. Therefore, if the gametophyte dies, the sporophyte will no longer receive the nutrients and support it needs to survive, and it will ultimately perish.
In summary, the sporophyte of a moss is completely dependent on the gametophyte for survival. If the gametophyte dies, the sporophyte will also die as a result.
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The numbers of organisms, at each trophies level, in a natural habitat remain more or less constant from year to year. Explain why this is so.
Answers
Predation: Both predator and prey species have balanced numbers, preventing any from becoming overly large and endangering the other.
Environmental factors: Variations in the environment, such as changes in temperature, precipitation, or sunlight, can have an impact on a species ability to survive and reproduce. The populations of creatures adapt and remain largely steady under a stable environment.
The overall number of species is largely maintained constant by this equilibrium. Competition can prevent a population from growing too large by limiting access to resources like food, water, and shelter.
Some species move to various environments in search of resources or to escape unpleasant circumstances. The movement of living things can support the balance of populations in various ecosystems.
Natural catastrophes: Natural catastrophes, like fires, floods, or earthquakes, can significantly affect populations of creatures. However, populations typically rebound and reach their baseline levels over time.
In conclusion, migration, competition for resources, environmental stability, predator-prey balance, and recovery from natural disasters all contribute to the stability of the population of species in a natural habitat from year to year.
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Which table shows two steps of DNA replication?
Answers
Explanation: because that’s how it is reached by my teacher I don’t really know how to explain it
DNA replication is a process where the polymerase enzyme adds complementary nucleotide bases in the parent DNA strand, hence option h polymerase matches adenine to thymine is correct.
What is DNA replication?The process by which a double-stranded DNA molecule is duplicated to form two identical DNA molecules is known as DNA replication.
Replication is necessary because when a cell splits, the two new daughter cells must have the same genetic information, or DNA, as the parent cell. In vitro DNA replication (DNA amplification) is also possible (artificially, outside a cell).
To begin DNA synthesis at known sequences in a template DNA molecule, DNA polymerases isolated from cells and artificial DNA primers can be utilized.
Therefore complementary base pairing of nucleotide base pairing, hence option h is correct.
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what are two organisms in the food web that have a predator-prey relationship? i need examples
Answers
Answer:
Some examples of predator and prey are lion and zebra, bear and fish, and fox and rabbit. The words "predator" and "prey" are almost always used to mean only animals that eat animals, but the same concept also applies to plants: Bear and berry, rabbit and lettuce, grasshopper and leaf.
Some examples of predator and prey are lion and zebra, bear and fish, and fox and rabbit.
What do you mean by predator-prey relationship?In the predator prey relationship, one species is feeding on the other species. The prey species is the animal being fed on, and the predator is the animal being fed. The predator prey relationship develops over time as many generations of each species interact.
Predator and prey populations cycle through time, as predators decrease numbers of prey. Lack of food resources in turn decrease predator abundance, and the lack of predation pressure allows prey populations to rebound.
The relationships between predators and prey play an important role in structuring ecological communities, with predators influencing the dynamics of their prey in ways that cascade through ecosystems.
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You are a sales representative for a company that makes a new alternate fuel for vehicles. You have prepared a presentation for the environmental engineers to sell your new product. What question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment?
A. Do we have to change any parts of the vehicle to use this alternate fuel?
B. Will the vehicles get better fuel mileage with the alternate fuel?
C. How much greenhouse gas does your fuel produce compared with current fuel sources?
D. Is the alternate fuel more expensive than fossil fuel?
Answers
Answer:
C. How much greenhouse gas does your fuel produce compared with current fuel sources?
Explanation:
Answer A asks whether vehicles need to be changed to use the fuel.
Answer B asks whether the vehicles will get better mileage.
Answer C asks whether emissions will be better or worse than current emissions.
Answer D asks whether it will be more expensive than current fuel.
Hope this helps!
Answer:
C. How much greenhouse gas does your fuel produce compared with current fuel sources?
Explanation:
Plato.
What are the small pores on the underside of the leaves called where water transpires back into the atmosphere?
stomata
mesophylls
cholorplasts
Xylem
Answers
All plant leaves need to breathe. The exchange of atmospheric gases is essential to photosynthesis, the process by which plants use sunlight to convert carbon dioxide and water into oxygen and fuel. Openings called stomata make this possible.
Hope this helps
Question 2 of 10
Which option describes a step in designing a controlled experiment?
A. Setting up control and experimental groups that differ for all
variables
B. Confirming that the hypothesis matches what other scientists
have previously found
C. Writing a flexible procedure that will produce different data each
time it is carried out
D. Identifying the independent (manipulated) and dependent
(responding) variables
Answers
The option that describes a step in designing a controlled experiment is identifying the independent (manipulated) and dependent (responding) variables (option D).
What is a controlled experiment?A controlled experiment is an experiment in which all the variable factors in an experimental group and a comparison control group are kept the same except for one variable factor in the experimental group that is changed or altered (independent variable).
An experiment is usually made up of an independent variable and a dependent variable.
However, in a controlled experiment, only one independent and dependent variable can be used, while all other variables are kept constant or controlled.
Therefore, the option that describes a step in designing a controlled experiment is identifying the independent (manipulated) and dependent (responding) variables.
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HELP HELP
The part of the enzyme where the substrate binds is called the:
a. substrate
b. inhibitor
c. active
d. product
Answers
C. active is your answer
DNA replication is semiconservative. Identify the new strand if the original is as follows. ATCTTGAC
CGAGGTCA
TAGAACTG
CAGTTCTA
ATCTTGAC
Answers
The new strand is the same as the original, separated from the template.
The semiconservative DNA replication process makes new double-stranded DNA molecules. One strand will be from the original template molecule and one strand will be newly synthesized.
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Based on the map, which statement is the best conclusion?
А)The majority of Earth's surface is covered in land.
B)The majority of the Earth's surface is covered by water.
C)The majority of the Earth's surface is covered by mountain ranges.
D)The majority of the Earth's surface is covered by volcanoes.
Answers
Answer:
B
Explanation:
Earth is 71% water.
Based off the map, a majority of it is blue, which represents water.
A new planet is discovered orbiting a star with a mass 3. 5'1031 kg at a distance of 1. 2 '1011 m. Assume that the orbit is circular.
What is the orbital speed of the planet? (G = 6. 673' 10-11 N·m2/kg)
Answers
The orbital speed of the planet is approximately \(\(4.20 \times 10^3 \, \text{m/s}\).\)
The orbital speed of a planet or satellite refers to the speed at which it revolves around a central body in a circular orbit. To calculate the orbital speed, we can use the formula:
\(\[ v = \sqrt{\frac{G \cdot M}{r}} \]\)
where:
- \(\( v \)\) represents the orbital speed,
- \(G\) is the gravitational constant (approximately \(\(6.673 \times 10^{-11} \, \text{N} \cdot \text{m}^2/\text{kg}^2\)),\)
- \(M\) is the mass of the central body (such as a star) around which the planet orbits,
- \(r\) is the distance between the planet and the central body.
By plugging in the appropriate values into this formula, we can calculate the orbital speed. The square root ensures that the speed is positive and represents the magnitude of the velocity.
To calculate the orbital speed of the planet, we can use the formula for the orbital speed of a satellite in a circular orbit:
\(\[ v = \sqrt{\frac{G \cdot M}{r}} \]\)
Where:
\(\( v \)\) is the orbital speed of the planet,
\(\( G = 6.673 \times 10^{-11} \, \text{N} \cdot \text{m}^2/\text{kg}^2 \)\) is the gravitational constant,
\(\( M = 3.5 \times 10^{31} \, \text{kg} \)\) is the mass of the star,
and \(\( r = 1.2 \times 10^{11} \, \text{m} \)\) is the distance between the planet and the star.
Plugging in these values into the formula, we get:
\(\[ v = \sqrt{\frac{(6.673 \times 10^{-11} \, \text{N} \cdot \text{m}^2/\text{kg}^2) \cdot (3.5 \times 10^{31} \, \text{kg})}{(1.2 \times 10^{11} \, \text{m})}} \]\)
Evaluating the expression, we find:
\(\[ v \approx 4.20 \times 10^3 \, \text{m/s} \]\)
Therefore, the orbital speed of the planet is approximately \(\(4.20 \times 10^3 \, \text{m/s}\).\)
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what are the caractheristics of viruses,bacteria,protists and fungi
Answers
Answer:
Bacteria,fungi and protists are all heterotrophs, taking their food source from something else. Fungus can also be used as food or as a pest, poisoning and killing plants in your yard (watermole- Potatoe famine). Protists: Protists have eukaryotic cells,and can be heterotropic but can be autotropic.
Fur color is a trait controlled by a dominant over recessive gene. The fur color is either brown or black.
Two brown mice and produce 12 offspring. Three (25%) of the offspring produced are black fur and nine (75%) have brown fur.
Based on the above data, answer the follow questions.
State which fur color is dominant (1 pt each).
State which fur color is recessive (1 pt each).
What is the genotype for the black fur (1 pt )
What is the genotypes for the brown fur (2 pts )
Answers
Answer:
Dominant: Brown colored fur
Recessive: Black colored fur
Black Fur Genotype: bb
Brown Fur Genotype: BB, Bb, or bB
Explanation:
B = Brown
b = Black
Each month a(n) ________ ruptures on the ovarian cortex.
A) ovum
B) corpus luteum
C) cyst
D) graafian follicle
Answers
Each month, a D. graafian follicle ruptures on the ovarian cortex.
The graafian follicle, also known as the mature follicle, is a fluid-filled sac in the ovary that contains a developing ovum or egg, this follicle goes through several stages of development during the menstrual cycle. The rupture of the graafian follicle occurs during the ovulation phase, which is typically around the 14th day of a 28-day cycle. When the graafian follicle ruptures, it releases the ovum, which then enters the fallopian tube to potentially be fertilized by a sperm cell.
After the rupture, the remaining follicular tissue transforms into the corpus luteum, which secretes hormones like progesterone to support a possible pregnancy. If fertilization does not occur, the corpus luteum eventually degenerates, leading to a drop in hormone levels and the onset of menstruation. In summary, the graafian follicle plays a crucial role in the monthly menstrual cycle by rupturing and releasing the ovum for potential fertilization.
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The graph shows the history of human population growth
Answers
Answer:
exponential growth, c.
Exponential growth is iconic for ramping up, resulting in a near vertical line by the time its really going.
What are dreams and why do we wish that our dreams would become our reality?
Answers
Answer:
A dream is a succession of images, ideas, emotions, and sensations that usually occur involuntarily in the mind during certain stages of sleep. The content and function of dreams are not fully understood, although they have been a topic of scientific, philosophical and religious interest throughout recorded history.
Explanation:
Sometimes we wish dreams were real because what happened in your dream was your wish
a plastic cube is released in water will it sink or come to the surface of water
Answers
Answer:
The plastic cube if released in water does not sink and rather floats on the surface. This called the phenomenon of buoyancy. Plastic is water repellent object and it has high rates of buoyancy, when compared to other objects. As plastic is lighter than the water it tends to float on the surface.Answer:
it floats
Explanation: it has the density lesser than water so i dosen't sink
How can a chloroplast, a structure found in plant cells but not in animal cells, provide energy for BOTH plants and animals?
Answers
Answer:
Chloroplasts are found in plant cells only because chloroplasts contain chlorophyll which is essential for photosynthesis. Chlorophyll traps sunlight and uses it to prepare food for plants by the process of photosynthesis.
How would the absolute refractory period be affected if voltage-gated sodium channels remained inactivated?.
Answers
If voltage-gated sodium channels remained inactivated, the absolute refractory period would be more extensive than usual.
Voltage-gated sodium channels- Ion channels that are triggered by change in electrical membrane potential close to the channel are known as voltage-gated ion channels. The cell membrane potential modifies the channel proteins' shape, controlling how they open and close.
Cell membrane- All cells have a cell membrane, also known as a plasma membrane, which divides the inside of the cell from the external environment. A semipermeable lipid bilayer makes up the cell membrane. The cell membrane regulates the transport of materials entering and exiting the cell.
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Which of these pairings is incorrect?
Answers
Answer:
none of them
Explanation:
Answer:
C: epithelial cells, react to stimuli
Explanation:
Check the image for question
Answers
Hope this helps
In chloroplasts, _____ is the source of the electrons needed for photosynthesis.
Answers
Answer: In chloroplasts, water is the source of the electrons needed for photosynthesis.
Explanation:
Hope that helps
What type of spatial distribution do the wolves illustrate?
Answers
Answer:
Could you please attach an image of the document so I can better assist you?
Explanation:
Have a great day, and spread some positivity!