Answer:
Intact skin
Explanation:
Blood borne pathogens not considered a threat unless the skin (human largest organ) is broken/not intact.
Someone plz help me I have to turn it in ASAP it was due past Thur. PLZ PLZ I’ll appreciate the help PLZ!!!!!!!! I beg u!! ♥️
Answer:okay so I did it it was very fun so here are my results EXPERIMENTAL DATA Before After 24 hours
Color of Starch solution It was a whitish color. Dark, purple, black color. inside bag!Color of Iodine solution A golden color. A transparent creme inside beaker color. Color of starch solution White White inside bag! Color of H20 in beaker TransparentExplanation: Conclusion
The conclusion to this test is that the plastic bag is permeable to iodine. The result
of this experiment clearly answers the "Problem" as stated above. This is~ by
the fact that the starch solution (dependent variable) in the baggie turned purple,
indicating the presence of iodine (independent variable) in the mixture. The starch
solution is the dependent variable because its color is affected by the iodine
solution. M.y hypothesis was that the iodine will get into the bag of starch because
the baggie is permeable to iodine. If the iodine solution penetrates the bag, it will
turn the starch solution inside the baggie, purple. The control data chart above
shows that if the starch had not been immersed in the iodine solution, but rather a
water solution, it would have remained the same color, white. Obviously, in order
for the iodine to enter the starch solution, the baggie must be permeable to the
iodine. The baggie represents a cell membrane. This lab is meant to demonstrate
whether or not a cell membrane is permeable to substances. Cell membranes of
living organisms may be permeable to some substances, but not permeable to other
substances. In this experiment,'1..charted that the iodine solution in the beaker did
not turn purple. This means that the starch solution did not penetrate the baggie
and therefore did not mix with the iodine outside the baggie. Because of this data, it
is clear that the plastic baggie is not permeable to starch, but is permeable to iodine.
In a cell membrane, this is called selective permeability. In other words, the iodine
can go through the baggie, but the starch cannot. The purpose of this experiment is
to show that a cell membrane is a type of barrier, and is permeable to some
substances, but may not be permeable to all substances. Therefore, a cell membrane
is selectively permeable.
Which quantity is a graduated cylinder designed for measuring?
Answer:volume
hope this helps
Answer:
volume
Explanation: The graduated cylinder is designed for measuring the volume of a substance.
Explanation:
Which of the following established the federal court system including circuits and appellate courts
Answer:
C. The judiciary act of 1789
Explanation:
NEED HELP ASAP * I THINK IS MY ANSWER
Table salt is a compound created when sodium (atomic number 11) and chlorine (atomic number 17) atoms bond. Which of the following correctly describes this bond?
A)sodium and chlorine share two electrons
B)a sodium atom gives all of its electrons to chlorine.
*C)a sodium atom gives one electron to a chlorine atom *
D)a chlorine atom gives a proton to a sodium atom
Answer:
oh it D
Explanation: DDDDDDD
Answer:
D
Explanation:
Streams and rivers have low
concentration
Answer:
Yes, that is very true.
Explanation:
The diagram below represents levels of organization in living things. Which term would best represent X?
A. Stomach
B. Human
C. Tissue
D. Chloroplasts
The correct answer is C. Tissue
Explanation:
In the diagram, x is between organ and cell level. This implies this level of organization is smaller than an organ but no as small as one cell. In this context, the most suitable term to add to this level is a tissue because these are structures composed of specialized cells, which shows this level encloses cells. Also, a group of tissues forms an organ; this implies the organ is the level that follows the tissue. Examples of this include muscle tissue composed of muscle cells and that is part of organs including the heart.
The term that would best represent X would be tissue.
The simplest level of organization of living things is the cell followed by tissue, organ, organ system, and then the organism itself.
The cell represents the simplest unit of existenceCells come together form tissues in order to perform a functionDifferent tissues come together to function as a unit known as organsDifferent organs make up the system and the body of an organism is made up of different systems.More on levels of organization of living things can be found here: https://brainly.com/question/282455?referrer=searchResults
Which statement best explains the relationship between producer and consumers in terms of
energy?
A. Consumer produce glucose that producer's use for energy B. Consumers convert carbon dioxide into energy
C. Consumers provide energy for producer to undergo aerobic respiration
D. Consumers convert glucose from producers into ATP
please only reply if you know the answer
Answer:
> Consumers convert glucose from producers into ATP.
Explanation:
Consumers do NOT provide oxygen or glucose for producers.
The statement, consumers convert the glucose from producers into ATP. So the correct option is D.
What are producers and consumers?In feeding chains, organisms are categorized into trophic levels. Producers (first trophic level), consumers (second, third, and fourth trophic levels), and decomposers roughly correspond to these levels.
Autotrophs, another name for producers, grow their own food. Every food chain's first level is comprised of these. Plants or single-celled creatures represent the majority of autotrophs. The majority of autotrophs produce their "food" (a nutrient called glucose) from sunlight, carbon dioxide, and water through a process known as photosynthesis.
The most well-known form of autotroph is a plant, but there are numerous others as well. Algae are autotrophic, and their bigger forms are known as seaweed. Autotrophs include the small sea life known as phytoplankton. Autotrophic bacteria include certain varieties. For instance, microorganisms that live in volcanoes that are still active utilize sulfur compounds to make their own food. Chemosynthesis is the name of this process.
Therefore the correct option is D.
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What structure is responsible for moving the chromosomes during cell division?
A. Nucleolus
B. Spindle Fibers
C. Nuclear membrane
D. Cytoplasm
Answer:
spindle
Explanation:
why dont u just google that?
knowing what you know about how a substance travels in diffusion in order for carbon dioxide to leave the blood and enter the alveoli there would be higher or lower concentration of carbon dioxide
Answer:
CO2 moves down its concentration gradient by simple diffusion. Therefore, CO2 would have to be high in the blood, and low in the alveoli for simple diffusion to happen, this would be done by passive diffusion and thus, simple diffusion.
Remember that in simple diffusion you go from an area of a high concentrated solute towards an area of low concentrated solute.
Is this Red blood cell in a Hypotonic, Isotonic, or
Hypertonic solution?
H2O
LH₂O
Answer:
[tex]\boxed {\tt B. \ Isotonic}[/tex]
Explanation:
We can see that the H₂O or water is leaving the cell and entering the cell at the same rate.
An isotonic solution has the same amount of solute outside the cell and solution inside cell. Therefore, when the water moves across the membrane, the water inside the red blood cell does not change.
Therefore, the best answer choice is B. Isotonic
which of the following structures have sweat glands?
a. olfactory bulb
b. retina
c. dermis
d. cochlea
please help me and btw im in 5th grade so pls help me with this. Thx =)
Directions Fill in the missing levels of classification.
Then write levels that are used to show scientific name.
kingdom
1.
2.
order
family
3.
4.
5. Scientific name =
Answer:
Here we go
Explanation:
So I guess here we are talking about : Hierarchy of classification...
Kingdom
Phylum
Class
Order
Family
Genus
Species
Scientific name......
I hope it was helpful
What is the speed of a car that traveled 16.5 m in 3 seconds? *
5.5 m
5.5 m/s
22 m
O 22 m/s
HELP
(83 points!!)
How did the discovery of chromosomes contribute to the discovery of DNA?
Answer:
His observations that chromosomes double is significant to the later-discovered theory of inheritance. ... His discoveries, known as Chargaff's Rules, proved that guanine and cytosine units, as well as adenine and thymine units, were the same in double-stranded DNA, and he also discovered that DNA varies among species
Explanation:
Discovery of chromosomes leads to significant discovery of DNA.The theory of inheritance gives the productive meaning that DNA exists and varies within the different kinds of species.
how are elements in the same group in the periodic table alike
Answer:
they have similar atomic masses
Explanation:
Cells use a molecule called (DNA / RNA / ATP / CMP) to store and release energy like a battery. The energy is stored in chemical bonds between (nucleotide / oxygen / phosphate / ribose) groups of the molecule, and the energy is released when the chemical bonds are broken.
Answer:
Cells use a molecule called ATP to store and release energy like a battery. The energy is stored in chemical bonds between phosphate groups of the molecule, and the energy is released when the chemical bonds are broken.
Explanation:
ATP (adenosine triphosphate) can be though of as a battery. It is also sometimes desribed as the energy currency of the cell. DNA and RNA are nucleic acids - the genetic information of the cell, and does not store and release energy. CMP is a nucleotide.
The energy found in ATP is found stored between phosphate groups of the molecule. When a phosphate group is released, it forms ADP (adenosine diphosphate)
Cells use a molecule called ATP to store and release energy. The energy is stored in chemical bonds between PHOSPHATE groups, and the energy is released when the chemical bonds are broken.
ATP is the energy coin of the cell whose hydrolysis is used to carry out many different metabolic functions (e.g., reproduction, differentiation, growth, etc).
ATP hydrolysis is a catabolic reaction, which provides releasable energy stored in the bonds between the second and third phosphate groups.
The molecule of ATP can transfer its energy to different molecules during many cellular processes such as, for example, DNA replication, active transport, muscle contraction, etc.
In conclusion, cells use a molecule called ATP to store and release energy. The energy is stored in chemical bonds between PHOSPHATE groups, and the energy is released when the chemical bonds are broken.
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I have a test about metabolism can someone please explain the subject well? Like just give me a explanation of how it works, and some examples or something.
Answer:
Metabolism is the process by which your body converts what you eat and drink into energy. During this complex biochemical process, calories in food and beverages are combined with oxygen to release the energy your body needs to function.There are three basic metabolism types: ectomorph, mesomorph, and endomorph – definitely words you probably don't use in your normal, day-to-day conversations.If your metabolism is "high" (or fast), you will burn more calories at rest and during activity. A high metabolism means you'll need to take in more calories to maintain your weight. That's one reason why some people can eat more than others without gaining weight.
Jenny brings home a plant with an internal concentration of 25g/ml. She puts the plant in her aquarium and fills the aquarium with water from the tap.
The plant will swell and possibly burst if the cell walls are weak.
B
The plant will wilt and possibly break apart if the cell membranes are weak.
C
The plant will thrive in a new type of environment.
D
The plant will become a creeping vine and grow out of the aquarium.
The plant will swell and possibly burst if the cell walls are weak. So, the correct option is A.
What is Cell wall?A cell wall is an external structural layer that surrounds some types of cells. It may be hard, flexible, or occasionally rigid. It serves as a filtration system as well as structural protection and support for the cell. The cell wall composition varies according to the organism which is permeable in nature
The cell wall isolates the inner elements from the surrounding environment. The cell as well as its organelles are also development in the context, support, and protection by it. But only eukaryotic plants, fungi, and a few prokaryotic creatures have this cellular component. If the plant's cell walls are insufficient in the case above, it will enlarge and possibly burst.
Therefore, the correct option is A.
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What color are corals when they expel their zooxanthellea?
pale translucent pink
clear with a white skeleton
creamy white
Answer:
creamy white
Explanation:
I* searched it up
Explain why populations tend not to continue to increase exponentially in an environment: 2. Explain what is meant by environmental resistance: 3. (a) Explain what is meant by carrying capacity: (b) Explain the importance of carrying capacity to the growth and maintenance of population numbers: 4. Species that expand into a new area, such as rabbits did in areas of Australia, typically show a period of rapid population growth followed by a slowing of population growth as density dependent factors become more important and the population settles around a level that can be supported by the carrying capacity of the environment. (a) Explain why a newly introduced consumer (e.g. rabbit) would initially exhibit a period of exponential population growth: (b) Describe a likely outcome for a rabbit population after the initial rapid increase had slowed: 5. Describe the effect that introduced grazing species might have on the carrying capacity
Answer and Explanation
Explain why populations tend not to continue to increase exponentially in an environment: The exponential growth model is based on unlimited resource availability which means that there is no effect depending on density. There is no competition for resources. Natality and mortality rate do not depend on density. There is a constant growth rate per capita and it is proportional to the population size. A population that exhibits exponential growth model increases in proportion to its size. In the Logistic growth model, the population growth depends on density, the natality and mortality rate depends on the population size, which means that there is no independence between population growth and population density.
When a population grows in a limited space, density rises gradually and eventually affects the multiplication rate. The population's per capita growth rate decreases as population size increases. The population reaches a maximum point delimited by available resources, such as food or space. This point is known as the carrying capacity, K.
Explain what is meant by environmental resistance: It refers to the limiting factors. There are factors and conditions that regulate the population growth, that might be biotic or abiotic, and that avoid the over-growth of a population in a certain space. It results in a natural equilibrium of its biotic potential.
Explain what is meant by carrying capacity: The carrying capacity K is the maximum point delimited by available resources, such as food or space.
K is a constant that coincides with the size of the population at the equilibrium point when the natality rate and the mortality rate get qual to each other.
Explain the importance of carrying capacity to the growth and maintenance of population numbers: If the population size, N, is inferior to K (N<K) the population can still grow. When N approximates to K, the population´s growth speed decreases. When N=K, the population reaches equilibrium, and when N is superior to K (N>K) the population must decrease in size because there are not enough resources to maintain that size.
Explain why a newly introduced consumer (e.g. rabbit) would initially exhibit a period of exponential population growth: The example of the rabbit is a case of invasion. Biologic Invasions refer to new species that disperse and establish in a new area far or out of their original distribution range. Once established, these species expand their distribution from the first invaded spot and overgrows. Once stablished, they expand. In the new area, they have less environmental pressure and better conditions than in their origin area -fewer predators, more resources, better nitches-, and these factors favor their overgrowth and consequently uncontrolled expansion. At this point, the population is exhibiting exponential growth. They have enough food available, they might not have predators, they do not have enough competitors for food or space, and if they do they are adapted to live under harder conditions so they are able to compete. The new species is not suffering from the effects of limiting factors yet.
Describe a likely outcome for a rabbit population after the initial rapid increase had slowed: There are some typical steps in an invasion process:
1) Introduction or dispersion to the new area,
2) Naturalization. The new species establishes in the new area. It can grow, reproduce and make use of resources.
3) Overgrowth and uncontrolled expansion. Exponential growth
4) Interaction with other species. At this point, they compete for limiting factors such as food or space. Their population is big enough to be affected by resource availability and by other species that interact with them. The invasive species reach the point in the curve where they stabilize.
5) Stabilization. They reach an equilibrium point.
Describe the effect that introduced grazing species might have on the carrying capacity. The introduced species expand fast and consume too many resources. Available resources, such as food or space, decrease.
The populations tend not to continue to increase exponentially in an environment due to various environmental factors which restricts or limits its growth.
Environmental resistance refers to environmental factors that restrict the biotic potential of an organism or limit the increase in population. Carrying capacity refers to average population of specie's size in a particular habitat. The importance of carrying capacity to the growth and maintenance of population number because carrying capacity provides resources to a specific population of organisms.
Newly introduced consumer (e.g. rabbit) would initially exhibit a period of exponential population growth because of no predator present in the environment. The introduction of predators which feeds on rabbit is the outcome for a rabbit population after the initial rapid increase had slowed
There is a great effect of introduced grazing species might have on the carrying capacity because more introduced grazing species removes all the vegetation present in that environment which leads to imbalance of ecosystem.
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Proteins that are going to be processed and secreted from a cell on the rough endoplasmic reticulum are produced by:
A)ribosomes.
B)cisternal spaces.
C)transport vesicles.
D)reticulum.
Crossing over, an important process that creates a great deal of the genetic diversity within a species, takes place during which phase of meiosis?
Select the correct response:
prophase 1
anaphase 1
prophase 2
metaphase 1
Answer:
efbjrebgkrekgekgr fregkbr
Explanation:
rrkf fkaewrkregrg
How do changes in temperature at a person’s extremities (external environment) affect the person’s core body temperature?
Answer:
Human performance is negatively affected when core body temperatures are not between 36.5 °C and 37.5 °C.
Explanation:
Which of the following is true of the Celsius scale
Answer:
ALL OF THE ABOVE!!
Explanation:
What is an example of a large carbohydrate molecule
Answer:
I think the large carbohydrate examples are cellulose, starch and glycogen. If am not mistaking.
Explanation:
Is composed such as glucose
.. Formulating Hypotheses Propose a hypothe-
sis to explain why angiosperms have become the
dominant type of plant on Earth.
Brodribb and Feild argue that more photosynthesis meant more carbon for growth. And that would have given the angiosperms the energy to push competitors like conifers out of the canopy around 150 million years ago, making angiosperms the most productive group of land plants in the world.
A chemical reaction can be mathematically represented by showing the required amount of products and resulting reaction components using a chemical
Answer:
Equation
Explanation:
the last word is Equation
Considering the definition of chemical reaction and chemical equation, A chemical reaction can be mathematically represented by showing the required amount of products and resulting reaction components using a chemical equation.
Chemical reactionA chemical reaction consists of the formation of new substances (products) from others (reagents). In this process bonds of the reactants are broken and new ones are formed in the products.
In other words, a chemical reaction occurs when the substances participating in it are transformed into different ones. The mass of the participating substances is the same before and after the reaction, that is, it is conserved because only a rearrangement takes place between the atoms of the reactants, which break and form new bonds.
Chemical equationChemical reactions are represented by chemical equations. In them, the reactants are determined, the products are predicted, and the proportions of the substances that participate in the reaction are indicated.
SummaryA chemical reaction can be mathematically represented by showing the required amount of products and resulting reaction components using a chemical equation.
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The amount of carbon on this Earth does not change. However, where the carbon is located does change. These locations are referred to as sources and sinks. Sources are areas that add carbon to the atmosphere and sinks are areas that remove carbon from the atmosphere. The sources and the sinks are important to the regulation of green house gasses. Carbon dioxide is one of several green house gasses that keep our planet warm. Too few greenhouse gases in the atmosphere would allow our planet to freeze, too many cause our planet to warm up too much. In the space below describe how humans are disrupting the natural cycle and contributing to the green house gasses in the atmosphere.
Answer:
In this stylized representation of the human-intensified greenhouse effect, human activities, predominantly the burning of fossil fuels (coal, oil, and gas), are increasing levels of carbon dioxide and other heat-trapping gases, increasing the natural greenhouse effect and thus Earth’s temperature.
Explanation:
One problem that was brought about by human action and is definitely affecting the hydrosphere globally is that of the greenhouse gases (so called because of their heat-trapping “greenhouse” properties) emitted to the atmosphere. Of the greenhouse gases released by anthropogenic activities, carbon dioxide has received much attention.
Which treatment is commonly used to manage stress and anxiety that are related to a disorder?
O physical therapy
O insulin injections
meditation
O manipulation
Answer:
Cognitive behavioral therapy (CBT) is the most widely-used therapy for anxiety disorders. Research has shown it to be effective in the treatment of panic disorder, phobias, social anxiety disorder, and generalized anxiety disorder, among many other conditions.
The treatment that is commonly used to manage stress and anxiety that are related to a disorder is meditation, which is the third option. The mediation helps the person recover from the stressful situation.
What exactly is the mental disorder?The mental disorder is linked to the person's personal experience; for example, if the person has had any negative experiences and is unable to cope with them, the person is more likely to enter the anxiety and depression stages. These types of mental disorders can harm a person physically too, as the nervous system does not work properly, and due to this neuronal imbalance, the digestive system, sleep cycle, and cardiac health will all be affected.
Meditation can be used as a form of therapy for the individual. Because in meditation, a person is told to practice concentration on mental health by many different methods, and eventually a person gets better with time.
Hence, The treatment that is commonly used to manage stress and anxiety that are related to a disorder is meditation, which is the third option.
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А
mutation occurs when a base in the DNA sequence is replaced by a different base.
Answer:
Substitution
Explanation:
I just took the quiz
Answer: Substitution
Hope this helps!