Answer:
Cells must divide to perform functions such as growth of the organism, replacement of damaged or old cells, and asexual reproduction in some organisms.
Explanation:
Answer:
To divide, a cell must complete several important tasks: it must grow, copy its genetic material (DNA), and physically split into two daughter cells.
Explanation:
Cells perform these tasks in an organized, predictable series of steps that make up the cell cycle.
Which factors that affect the Florida peninsula can result from human activity?
O the formation of sand dunes and springs
O the formation of springs and drilling of artesian wells
O the intrusion of salt water and formation of sand dunes
O the mining of phosphate and erosion of the coast
Answer:
B. the formation of springs and drilling of artesian wells
Explanation:
The second option is the result of human activity because humans are the ones drilling the wells. The other options are formations as a result of natural causes.
Describe the nonspecific antimicrobial effects of mucus, lysozyme, and acidic pH. For each of these substances, list where they are found in the body and how they function in fighting pathogens.
Answer: Non specific defence mechanism are the first lines of general defence that aids in preventing entry and minimising further passage of microbes and foreign materials into the body.
Explanation:
The non specific defence mechanisms protects us against any of enormous range of possible dangers using these methods:
--> defence at body surface
--> phagocytosis
--> natural antimicrobial substances
--> the inflammatory response and
--> immunological surveillance.
MUCUS is a slippery substance which covers the luminal surface of the Lungs. It provides defence at the body surfaces. Incase of any inhaled foreign material through the nose into the lungs, it's usually entrapped by the mucus. It is either coughed up or swallowed.
LYSOZYME: This is a protein with antibacterial properties present in granulocytes, tears and sweat. They are natural antimicrobial substances that destroys the cell walls of bacteria leading to its death.
ACIDIC Ph: The presence of acidic natural substances found in the stomach such as the gastric juice or hydrochloric acid, kills the majority of ingested microbes.
At which point is ocean water the warmest?
O 1
O 2
O 3
O 4
Answer:
C, 3
Explanation:
I'm doing the test right now, and I watched the videos
Match these items.
1. first nuclear reactor
curie
2. 1/0 n
atomic mass
3. splitting of nuclei into lighter elements
fusion
4. number of neutrons and protons
Fermi
5. builds heavier elements
neutron
6. discovered radioactivity
Becquerel
7. unit of radiation
fission
Answer:
1. Fermi
2. Neutron
3. Fission
4. Atomic mass
5. Fusion
6. Becquerel
7. Curie
Explanation:
1. The invention of the first nuclear reactor was led by a scientist called ENRICO FERMI.
2. A neutron is a subatomic particle with the symbol "n". It has a mass number of 1 and a charge of 0, hence, it is debited by 1/0n
3. Nuclear fission is the splitting of nuclei into lighter elements.
4. Atomic mass or mass number is the number of neutrons and protons in the atom of an element.
5. Fusion is the building up of heavier elements from smaller ones. It is the opposite of fission.
6. Henri Becquerel is the physcist from France who discovered radioactivity.
7. Curie (Ci) is the unit of radiation, given after the scientist who contributed immensely to radioactivity, called MARIE CURIE.
Answer:
Answer:
1. Fermi
2. Neutron
3. Fission
4. Atomic mass
5. Fusion
6. Becquerel
7. Curie
Explanation:
what is the most common cutaneous receptor found in the skin?
The density and variety of receptors vary in different regions. For example, in hairy skin the peritrichial endings are most common, but Merkel's discs and free nerve endings are also present. In glabrous (hairless) skin, free nerve endings are present, as are Merkel's discs and Meissner's corpuscles.
compare to the spread of foodborne and person-to-person pathogens?
Answer:
4.Compare: How does the spread of a foodborne pathogen compare to the spread of theperson-to-person pathogen you studied in activity A?A foodborne pathogen is much slower to spread than a person-to-person pathogen. The smallconfined room makes it easier and much faster to spread the virus. Foodborne only getsinfected by consuming contaminated food. On the other hand, a person-to-person pathogendoes not require that.5.Predict: How would you expect the spread of an airborne disease to be similar to anddifferent from the spread of a foodborne disease and a person-to-person disease?The similarity of a airborne disease and both a foodborne and person-to-person disease isnumerous. One of the similarities is that they are all diseases. Another similarity is that they canall infect and spread. These diseases not only have similarities but they also have differences.One of the many differences they have is the way they spread and infect. Airborne diseasesspread by a victim breathing in pathogens in the air. This is different from how foodborne andperson-to-person diseases spread because foodborne diseases spread by being consumed andperson-to-person diseases spread by contact of two people. In conclusion all the types ofdiseases including foodborne, person-to-person, and airborne all posses numerous similaritiesand as well as numerous differences.6.Experiment: Run a few simulations with the airborne pathogen.A.What patterns do you notice in how the airborne pathogen spreads?There are no patterns on how the airborne pathogen spreads. People get infected with thedisease in different parts of the room randomly.B.How does the spread of an airborne pathogen compare to the spread of foodborneand person-to-person pathogens?An airborne disease spreads randomly as the disease is in the air. It depends if the disease isinhaled. On the other hand, foodborne and person-to-person pathogens are predictable.Foodborne pathogens spread from contaminated food and person-to-person pathogens arespread from contact of infected people.7.Think about it: Suppose there is an infectious disease at a party. How could doctors tell if thedisease was foodborne, airborne, or transmitted person to person?Doctors could look for patterns to find out what type of transmission the pathogen inflicted. Forfoodborne, they could make a chart and find out who ate the food and who got the disease or,they could microscope the food to find pathogens. A way for finding person to person pathogenswould be to go to the bathroom at the party and examine the towel for diseases or find out if

Assuming that the motion of the object remains the same, at what position will the object be when it had traveled for a total of 6 s?
A. 2 m
B. 0 m
C. 1 m
Answer:
B. 0 m
Explanation:
The graph given is a position - time graphical model of the motion of a body.
The y-axis denotes the position of the body and the x- axis is the time taken.
To solve this problem, since the velocity of the motion is constant and no acceleration, we trace up the point 6s on the x-axis and find the y-axis equivalent.
Completing the graph, the point lies on 0m. At 0m, the object would have traveled for 6s.Answer:B. 0 m
Explanation:The graph given is a position - time graphical model of the motion of a body.
The y-axis denotes the position of the body and the x- axis is the time taken.
To solve this problem, since the velocity of the motion is constant and no acceleration, we trace up the point 6s on the x-axis and find the y-axis equivalent.
Completing the graph, the point lies on 0m.
At 0m, the object would have traveled for 6s.
Gregor Mendel studied many things at the University of Vienna. According to the
passage, which of the following topics of study was the most crucial to his final
analysis?
Answer: It would be the study of different plant varieties.
Explanation:
The one topic which study was the most crucial to his final analysis is the study of plant varieties. The correct option is B.
Who was Gregor Mendel?Gregor Mendel discovered the fundamental laws of inheritance while working on pea plants. He deduced that genes are inherited in pairs and as distinct units, one from each parent.
Mendel studied the segregation of parental genes and how they manifested in offspring as dominant or recessive traits.
Mendel's First Law is particularly noteworthy because he made his observations and conclusions (1865) without having any prior knowledge of the relationships between genes, chromosomes, and DNA.
The law of segregation is the most important of these three laws because it has no exceptions and is universally accepted.
The study of plant varieties was the most important topic for his final analysis.
Thus, the correct option is B.
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Your question seems incomplete, the missing part is attached below:
The study of statistics and probabilities
The study of plant varieties
The study of agriculture
His study of the experimental method
TRUE/FALSE: In the elongation stage of Transcription, the mRNA sequence elongates as RNA polymerase moves along the DNA
Answer:True.
Explanation:
RNA polymerase adds nucleotides to the mRNA to copy from a single DNA strand and separates when the gene sequence is complete.
What is the cause of the differences in the offspring?
Answer:
animals with different species interbreed to produce a different and infertile offspring
Which carbon reservoir has the longest residence time? (1 point)
plant biomass
Oceans
soil
fossil deposits
The carbon reservoir that has the longest residence time is known as a fossil deposit. Thus, the correct option for this question is D.
What is a carbon reservoir?A carbon reservoir may be defined as being stored form of carbon in rocks and sediments. The rest is located in the ocean, atmosphere, and in living organisms. These are the reservoirs through which carbon cycles.
The movements of carbon take place through the four major reservoirs of the earth. It includes the biosphere, lithosphere, hydrosphere, and atmosphere. Plant biomass holds carbon for a very less period of time followed by soil. But the deposits of fossils hold the concentration of carbon for a maximum period of time.
Therefore, the carbon reservoir that has the longest residence time is known as a fossil deposit. Thus, the correct option for this question is D.
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xplain how the enteric nervous system supports the digestive system. What might occur that could result in the autonomic nervous system having a negative impact on digestion
Answer:
It controls gastrointestinal track.
Explanation:
The enteric nervous system supports the digestive system because enteric nervous system controls gastrointestinal track and there is no control of central nervous system (CNS) in this gastrointestinal track. Our gastrointestinal tract comprise of our mouth, esophagus, stomach, small intestine, large intestine, and anus. If abnormality occur in autonomic nervous system which result in negative impact on digestion because autonomic nervous system regulates digestion process.
what plays as the boundary in a cell
Answer:
The plasma membrane....
Describe the difference in the thickness of the endometrium that you should observe when looking at histological samples of the uterus during the secretory phase compared to the uterus during the menstrual phase.
Answer:
The description including its issue is summarized throughout the clarification paragraph following.
Explanation:
Mostly during the containing period including its menstrual level, maximum density including its endometrium becomes 12 mm greater than the duration including its menstruation period, which would be 1-2 mm. The thing that is different due to all of the secretory granules process strengthens the uterus should help the fetus throughout fertilization which sustains childbirth, however, whenever fertilization doesn't happen, the endometrium starts to deplete such that the consistency is decreased.Explain in brief how the non-covalent weak interactions play a major role in biomolecular structure.
Answer:
The type of intermolecular interactions of a set of molecules determines how they are grouped together. In the case of biological molecules, these types of non-covalent weak interactions have a great importance in the development of the vital phenomenon, since they allow the interaction of the different biomolecules with each other.
Explanation:
Non-covalent weak interactions are characterized by being long-range, that is, they act at a distance greater than 28 and by their weak binding energy (their binding energy is typically 10 to 100 times lower) so they can be created and break easily. These interactions are responsible for the final structure of macromolecules, for the specific binding between molecules, that is, for molecular recognition, for the self-organization processes of macromolecular and cellular structures, and for everything that involves movement and communication at the cellular and subcellular level. Its importance, therefore, is fundamental for all structural and functional aspects of living beings.
Is the steel mesh being draped across the hillside intended to prevent weathering or erosion?
lol help plz
It's difficult to say for certain without more context, but it's possible that the steel mesh is intended to prevent erosion.
When does erosion occur ?Erosion occurs when soil or rock is washed away by water or wind, and it can be a significant problem in areas with steep slopes or loose soil. Steel mesh can be used to stabilize slopes and prevent erosion by holding soil in place and providing a barrier to prevent the movement of soil particles.
Weathering, on the other hand, refers to the natural process of breaking down rock and other materials over time due to exposure to the elements. While steel mesh can provide some protection against weathering by shielding the surface of the slope from direct contact with wind and rain, it is not typically used specifically for this purpose.
If you could provide more context about the steel mesh installation, it would be helpful in determining its intended purpose. For example, where is the hillside located? What type of terrain is it? What is the surrounding environment like? Is there any construction or development happening in the area? What is the current state of the hillside? Is it prone to erosion or landslides?
Answering these questions could help shed more light on why the steel mesh is being used. Additionally, it's possible that the steel mesh is being used for multiple purposes, such as both erosion control and slope stabilization.
Again, without more information about the specific context of the steel mesh installation, it's difficult to say for sure what its intended purpose is.
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A close long-term relationship between different species in a community is called?
A.) Mutualism
B.) Symbiosis
C.) Commensalism
An example is the relationship between a sunflower and an insect that pollinates it.
es and Moion Assessment (Luncn)
12of25
While waiting for the bus you take a seat on the metal bench at the bus stop. The bench feels very cold to you. Why? (AKS 7c DOK 2)
A The warmth in your hands is being transferred to the bench via conduction.
OB. The warmth in your hands is being transferred to the bench via convection.
Oc. The coldness of the bench is being transferred to your hands via conduction.
OD. The coldness of the bench is being transferred to your hands via convection.
Answer:
C the answer is def c
Explanation:
1)In a food chain, with each feeding relationship, the energy transferred from one organism to another will(1 point)
a)remain constant.
b)be independent of the level.
c)increase.
d)decrease.
2)Food chains normally consist of no more than (1 point)
a)six organisms.
b)five organisms.
c)four organisms.
d)three organisms.
3)The black bear is common to North America. Black bears eat many foods, mainly grass, roots, berries, and insects. However, fish and mammals—including those already dead—are also part of their diet. Some tend to wander near campsites and can develop a taste for human food and garbage. Given this information, which term most accurately characterizes black bears? (1 point)
a)decomposers
b)producers
c)omnivores
d)carnivores
4)What is the usual composition of a food chain?(1 point)
a)a decomposer, some producers, and a consumer
b)a decomposer, a producer, and some consumers
c)multiple producers and a consumer
d)a producer and multiple consumers
Answer: The correct answers are:
1. D
2. C
3. C
4. D
Explanation:
I just took the quiz and these are the correct answers.
In the food chain, the energy transferred from one organism to another will decrease. Food chains consist of more than four organisms. The term shows black bears as omnivores. The makeup of a food chain is a producer and multiple consumers. The correct options are 1. D, 2. C, 3. C, and 4. D.
What is a food chain?A food chain is the joining of many organisms together with the medium of their food and the transfer of energy to form one organism to another organism.
It consists of producers, consumers, and decomposers. Producers are autotrophs. They are plants and consumers are animals, and other decomposers are bacteria and fungi.
Therefore, the correct options are 1. D, decrease., 2. C, four organisms., 3. C, omnivores, and 4. D, a producer, and multiple consumers.
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A small bird gathers pollen and nectar for food, but at the same time is
aiding in the plant's reproduction by spreading pollen to other flowers it
visits. What does this relationship demonstrate? *
Answer:
Mutualism
Explanation:
In biology, the term symbiosis refers to close and often long-term interactions between organisms that belong to different species. There are three main types of symbiotic relationships:
mutualism - both organisms benefit from their relationshipcommensalism - one organism benefits, while the other doesn't benefit or suffer any harmparasitism - one organism causes harm to the otherIn the given scenario, both the bird and plant benefit from their relationship. The bird gets food, while the plant reproduces more easily. This is why their relationship is an example of mutualism.
1. How are renewable resources and nonrenewable resources different? Give two examples of
each.
1.
2.
Answer:
Renewable resources = electricity,wood
Non renewable resources= petrol,diesel hope u understand
What are similarities between selective
breeding and genetic engineering?
Why is the cell like a city?
Answer:
The cell is basically like a city because there are different parts of the cell that work together to keep a system running, therefore incredibly similar to a cell. There are parts to the cell such as the vacuole which acts as the storage for a cell, like the storeroom or bank in the city, and the lysosome which cleans up and recycles for the cell in away, acting as the recycle center or such for a city. Just like these few cell parts, there are many other parts which each have their respective "role" to functioning as a "city", and for those reasons a cell is like a city.
AWNSER ASAP
Identify the two careers that do not require any college education.
dental assistant
dietitian
home health aide
physician assistant
social worker
Answer:
the two careers that don't require any college education are a dental assistant and a home health aide
Explanation:
using the process of elimination....
a dietitian requires a bachelor's degree,
physician assistant needs a masters degree (in most cases)
social worker needs a bachelor's degree
this means the other 2 remaining options...
dental assistant & a home health aide do not require a college education
The plasma membrane found in both prokaryotic and eukaryotic cells is composed of a/an _______, which is semipermeable and controls the flow of molecules into and out of the cell.
Answer:
Phospholipid layer
Explanation:
The plasma or cell membrane is the outer covering of prokaryotic (bacteria) and eukaryotic (plants and animal) cells that provides support to the cytoplasm. The plasma membrane is made up of components like phospholipid layer, proteins, etc. However, the PHOSPHOLIPID LAYER component of the plasma membrane confers its SEMI-PERMEABILITY upon it.
The phospholipid layer consists of a hydrophilic i.e. water-loving region (phosphate head) and hydrophobic i.e. water-fearing region (fatty acid tails) that allows it to selectively control the flow of molecules into and out of the cell.
Which two layers of earth are made of rock
Answer:The crust and the upper layer of the mantle together make up a zone of rigid, brittle rock called the Lithosphere . The layer below the rigid lithosphere is a zone of asphalt-like consistancy called the Asthenosphere . The asthenosphere is the part of the mantle that flows and moves the plates of the Earth.
Explanation:
What does an injured person needs immediately?
Doctor
Vehicle
Clear road
First Aid
Answer:
An injured person needs an first aid ,if the person is not around the hospital the we should call an ambulance and take him to hospsuck
What does ethidium bromide do?
Answer: Ethidium bromide is the most commonly used dye for DNA and RNA detection in gels. Ethidium bromide is a DNA intercalator, inserting itself between the base pairs in the double helix. Ethidium bromide has UV absorbance maxima at 300 and 360 nm, and an emission maximum at 590 nm.
Hope this helps....... Stay safe and have a Merry Christmas!!!!!!!!! :D
HELP HOW DO I SOLVE THIS
Answer:
Explanation:
Wht the budget it is hrd right
what is it called, to cause the remains of animal or plants life to decay?